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Sample records for badger meles meles

  1. The European badger (Meles meles diet in a Mediterranean area

    Directory of Open Access Journals (Sweden)

    Ester Del Bove

    2001-09-01

    Full Text Available Abstract A study on food habits of the European badger (Meles meles was carried out over a two year period (march 1996 - February 1998 in an area of ca 55 hectares in the Burano Lake Nature Reserve, central Italy. The badger's diet was determined by faecal analysis. The results, expressed as the frequency of occurrence, estimated volume (% and percentage volume of each food item in the overall diet, showed that in this area the badger can be considered as a generalist, with fruit and insects as principal food items during the whole year, although some seasonal differences did occur.

  2. Genetic structure within and among regional populations of the Eurasian badger (Meles meles) from Denmark and the Netherlands

    NARCIS (Netherlands)

    Zande, van de L.; Vliet, van de M.; Pertoldi, C.; Loeschcke, V.; Muskens, G.; Bijlsma, R.

    2007-01-01

    The Eurasian badger Meles meles has a wide distribution area ranging from Japan to Ireland. In western Europe badger habitats are severely disturbed by anthropogenic factors, leading to fragmentation into subpopulations and formation of a metapopulation substructuring of once continuous panmictic po

  3. Present and past microsatellite variation and assessment of genetic structure in Eurasian badger (Meles meles) in Denmark

    NARCIS (Netherlands)

    Pertoldi, C; Loeschcke, [No Value; Randi, E; Madsen, AB; Hansen, MM; Bijlsma, R; Van De Zande, L

    2005-01-01

    During the past 50 years the number of badgers (Meles meles) in Denmark has declined by c. 50%. To assess the genetic consequences of the demographic decline, six DNA-microsatellite loci were used to analyse 139 badger tissue-samples, which were collected in 1995-98 from three zones (1, 2 and 3) in

  4. WIND TURBINES CAUSE CHRONIC STRESS IN BADGERS (MELES MELES) IN GREAT BRITAIN.

    Science.gov (United States)

    Agnew, Roseanna C N; Smith, Valerie J; Fowkes, Robert C

    2016-07-01

    A paucity of data exists with which to assess the effects of wind turbines noise on terrestrial wildlife, despite growing concern about the impact of infrasound from wind farms on human health and well-being. In 2013, we assessed whether the presence of turbines in Great Britain impacted the stress levels of badgers ( Meles meles ) in nearby setts. Hair cortisol levels were used to determine if the badgers were physiologically stressed. Hair of badgers living wind farm had a 264% higher cortisol level than badgers >10 km from a wind farm. This demonstrates that affected badgers suffer from enhanced hypothalamo-pituitary-adrenal activity and are physiologically stressed. No differences were found between the cortisol levels of badgers living near wind farms operational since 2009 and 2012, indicating that the animals do not become habituated to turbine disturbance. Cortisol levels in the affected badgers did not vary in relation to the distance from turbines within 1 km, wind farm annual power output, or number of turbines. We suggest that the higher cortisol levels in affected badgers is caused by the turbines' sound and that these high levels may affect badgers' immune systems, which could result in increased risk of infection and disease in the badger population.

  5. The parasites of the badger (Meles meles) in the north of Mugello (Florence, Italy).

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    Magi, M; Banchi, C; Barchetti, A; Guberti, V

    1999-12-01

    During the period January 1993-June 1994, a parasitological survey was carried out on 19 badgers (Meles meles) road killed in Northern Mugello (Florence). The following helminths (together with their prevalence) were isolated and classified: Uncinaria criniformis (84.2%); Capillaria sp. (31.6%); Molineus patens (21.1%); Mesocestoides melesi (21.1%); Aelurostrongylus falciformis (52.6%); Crenosoma melesi (21.1%). According to results, only sex related differences in prevalence were studied. The parasite biocenosis is composed exclusively by dominant and codominant species. Mesocestoides melesi represents the first record for Italy. All the species found fitted a negative binomial distribution.

  6. Effect of culling and vaccination on bovine tuberculosis infection in a European badger (Meles meles) population by spatial simulation modelling

    NARCIS (Netherlands)

    Abdou, Marwa; Frankena, Klaas; O'Keeffe, James; Byrne, Andrew W.

    2016-01-01

    The control of bovine tuberculosis (bTB) in cattle herds in the Republic of Ireland (ROI) is partially hindered by spill-back infection from wild badgers (Meles meles). The aim of this study was to determine the relative effects of interventions (combinations of culling and/or vaccination) on bTB

  7. Characterisation of twenty-one European badger (Meles meles) microsatellite loci facilitates the discrimination of second-order relatives

    NARCIS (Netherlands)

    Annavi, Geetha; Dawson, Deborah A.; Horsburgh, Gavin J.; Greig, Carolyn; Dugdale, Hannah L.; Newman, Chris; Macdonald, David W.; Burke, Terry

    2011-01-01

    The European badger (Meles meles) breeds plurally in lowland England and is important economically due to its link with bovine tuberculosis (Mycobacterium bovis) transmission. To understand disease transmission and facilitate effective management, it is vital to elucidate the social structure of bad

  8. Helminth parasites of the eurasian badger (Meles meles L.) in Spain: a biogeographic approach.

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    Torres, J; Miquel, J; Motjé, M

    2001-04-01

    Eighty-five Eurasian badgers, Meles meles (Linnaeus, 1758), from four mainland biogeographic Spanish areas were analysed for helminths. Seventeen helminth species were found: Brachylaima sp., Euparyphium melis and Euryhelmis squamula (Trematoda), Atriotaenia incisa and Mesocestoides sp. (Cestoda) and Aelurostrongylus pridhami, Angiostrongylus vasorum, Aonchotheca putorii, Crenosoma melesi, Mastophorus muris, Molineus patens, Pearsonema plica, Physaloptera sibirica, Strongyloides sp., Trichinella sp., Uncinaria criniformis and Vigisospirura potekhina hugoti (Nematoda). In the Mediterranean area, Aonchotheca putorii, M. patens, Strongyloides sp., and U. criniformis were more prevalent in the occidental part, whereas Atriotaenia incisa and Mesocestoides sp. cestodes showed higher values on the continental slope. Metastrongyloid species (Aelurostrongylus pridhami, Angiostrongylus vasorum and Crenosoma melesi) were only detected in the occidental Mediterranean area. In contrast, spirurid species (Mastophorus muris and Vigisospirura potekhina hugoti) were almost restricted to the continental Mediterranean area. Helminthological differences between areas may result from the badger diet, abiotic factors and biocenosis present in each biogeographic area.

  9. Reproductive Biology Including Evidence for Superfetation in the European Badger Meles meles (Carnivora: Mustelidae.

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    Leigh A L Corner

    Full Text Available The reproductive biology of the European badger (Meles meles is of wide interest because it is one of the few mammal species that show delayed implantation and one of only five which are suggested to show superfetation as a reproductive strategy. This study aimed to describe the reproductive biology of female Irish badgers with a view to increasing our understanding of the process of delayed implantation and superfetation. We carried out a detailed histological examination of the reproductive tract of 264 female badgers taken from sites across 20 of the 26 counties in the Republic of Ireland. The key results show evidence of multiple blastocysts at different stages of development present simultaneously in the same female, supporting the view that superfetation is relatively common in this population of badgers. In addition we present strong evidence that the breeding rate in Irish badgers is limited by failure to conceive, rather than failure at any other stages of the breeding cycle. We show few effects of age on breeding success, suggesting no breeding suppression by adult females in this population. The study sheds new light on this unusual breeding strategy of delayed implantation and superfetation, and highlights a number of significant differences between the reproductive biology of female Irish badgers and those of Great Britain and Swedish populations.

  10. Ectoparasite infestations of Badgers (Meles meles in Western Switzerland

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    Emmanuel Do Linh San

    2007-12-01

    Full Text Available Between 1999 and 2004, 160 badger carcasses (mainly road casualties and culled animals were collected in a 600-km2 rural area of Western Switzerland (Broye region. Body and fur inspections indicated that 88.4% of the animals were infested with at least one of the following ectoparasite categories: lice (76.0%, ticks (57.5% and fleas (19.7%. Nevertheless, the number of parasites was low, in average 2.6 fleas, 4.8 ticks and/or 17.1 lice per infested animal. No significant intersexual and age-related differences (adults vs subadults, adults vs young were found as concerns prevalence and abundance of ectoparasites. The lower, and more constant infection by fleas in the course of the year, is concordant with the hypothesis which proposes that badgers frequently switch sleeping places in order to avoid a build up of ectoparasites in the nest material. It remains unclear whether the low loads of ticks and lice recorded in both low and high density badger populations are due to the efficiency of auto- and allo-grooming in this species, to frequent replacement or aeration of the bedding material by individual badgers, or to another, yet to be discovered mechanism. Further studies are needed to clarify whether these results are therefore indicative of a limited role of Eurasian badgers as a potential reservoir of diseases transmitted by ectoparasites.

  11. A record of Crenosoma vulpis (Rudolphi, 1819) (Nematoda, Crenosomatidae) from the Eurasian badger (Meles meles L.) from Poland.

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    Popiołek, Marcin; Jarnecki, Hubert; Łuczyński, Tomasz

    2009-01-01

    Three specimens of the nematode Crenosoma vulpis (Rudolphi, 1819) were isolated from the lungs of the Eurasian badger (Meles meles L.) found dead on a road in the north-western part of Wrocław (Lower Silesia, SW. Poland) in August 2008. Since this is the first record of the parasite in the badger from Poland, description, biometrical data and figures are given.

  12. On the Fruit Consumption of Eurasian Badger (Meles meles (Mammalia: Mustelidae during the Autumn Season in Sredna Gora Mountains (Bulgaria

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    Dilian G. Georgiev

    2009-07-01

    Full Text Available This case study was carried out at one badgers family territory by asingle collection (11.11.2002, north of Stara Zagora City, near Tabashka River of faeces from the animal latrine sites. Total of 1361 individual food items were identified in Eurasian badger (Meles meles faeces from which the fruits of the Cornel-tree (Cornus mas strongly dominated (n=1332, 96.5% from all items, 98.2% from all fruits.

  13. Trophic enrichment factors for blood serum in the European badger (Meles meles.

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    David J Kelly

    Full Text Available Ecologists undertaking stable isotopic analyses of animal diets require trophic enrichment factors (TEFs for the specific animal tissues that they are studying. Such basic data are available for a small number of species, so values from trophically or phylogenetically similar species are often substituted for missing values. By feeding a controlled diet to captive European badgers (Meles meles we determined TEFs for carbon and nitrogen in blood serum. TEFs for nitrogen and carbon in blood serum were +3.0 ± 0.4‰ and +0.4 ± 0.1‰ respectively. The TEFs for serum in badgers are notably different from those published for the red fox (Vulpes vulpes. There is currently no data for TEFs in the serum of other mustelid species. Our data show that species sharing similar niches (red fox do not provide adequate proxy values for TEFs of badgers. Our findings emphasise the importance of having species-specific data when undertaking trophic studies using stable isotope analysis.

  14. Winter Is Coming: Seasonal Variation in Resting Metabolic Rate of the European Badger (Meles meles.

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    David W McClune

    Full Text Available Resting metabolic rate (RMR is a measure of the minimum energy requirements of an animal at rest, and can give an indication of the costs of somatic maintenance. We measured RMR of free-ranging European badgers (Meles meles to determine whether differences were related to sex, age and season. Badgers were captured in live-traps and placed individually within a metabolic chamber maintained at 20 ± 1°C. Resting metabolic rate was determined using an open-circuit respirometry system. Season was significantly correlated with RMR, but no effects of age or sex were detected. Summer RMR values were significantly higher than winter values (mass-adjusted mean ± standard error: 2366 ± 70 kJ⋅d(-1; 1845 ± 109 kJ⋅d(-1, respectively, with the percentage difference being 24.7%. While under the influence of anaesthesia, RMR was estimated to be 25.5% lower than the combined average value before administration, and after recovery from anaesthesia. Resting metabolic rate during the autumn and winter was not significantly different to allometric predictions of basal metabolic rate for mustelid species weighing 1 kg or greater, but badgers measured in the summer had values that were higher than predicted. Results suggest that a seasonal reduction in RMR coincides with apparent reductions in physical activity and body temperature as part of the overwintering strategy ('winter lethargy' in badgers. This study contributes to an expanding dataset on the ecophysiology of medium-sized carnivores, and emphasises the importance of considering season when making predictions of metabolic rate.

  15. Genetic structure within and among regional populations of the Eurasian badger (Meles meles) from Denmark and the Netherlands

    DEFF Research Database (Denmark)

    Zande, L. van de; Vliet, M. van de; Pertoldi, C.

    2007-01-01

    .30, overall HE=0.34). Considerable genetic differentiation between the Dutch and Danish populations was found (overall FST=0.32, mean pairwise Dutch-Danish FST=0.42), indicating a large-scale substructuring of these western European badger populations. Further analysis showed that the Danish badger population......The Eurasian badger Meles meles has a wide distribution area ranging from Japan to Ireland. In western Europe badger habitats are severely disturbed by anthropogenic factors, leading to fragmentation into subpopulations and formation of a metapopulation substructuring of once continuous panmictic...... populations. We have examined the genetic structure of Dutch and Danish badger populations on a relatively small scale (within countries) and a larger scale (between countries). The levels of genetic variation of populations were moderate and did not differ significantly among populations (overall HO=0...

  16. Dutch hedgehogs Erinaceus europaeus are nowadays mainly found in urban areas, possibly due to the negative Effects of badgers Meles meles

    NARCIS (Netherlands)

    Poel, van de J.; Dekker, J.J.A.; Langevelde, van F.

    2015-01-01

    In several west European countries, the distribution of hedgehogs Erinaceus europaeus is declining. In the UK, predation by the European badger Meles meles is considered to be the main death cause of hedgehogs. In the Netherlands, badger density is rising, which suggests the same cause for the decli

  17. Molecular identification of Trichinella britovi in martens (Martes martes) and badgers (Meles meles); new host records in Poland.

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    Moskwa, Bożena; Goździk, Katarzyna; Bień, Justyna; Bogdaszewski, Marek; Cabaj, Władysław

    2012-12-01

    Trichinella larvae were detected in a marten (Martes martes) and a badger (Meles meles) in Poland. The animals were found dead following car accidents. All examined animals derived from the Mazurian Lake district, north-east Poland, near the village Kosewo Górne where Trichinella infection were earlier confirmed in wildlife; red foxes and wild boars. The muscle samples were examined by artificial pepsin-HCl digestion method. The parasites were identified as Trichinella britovi by multiplex polymerase chain reaction method. Larvae were found in two out of three martens and one out of seven examined badgers. This is the first report of the identification of Trichinella britovi larvae from martens and badgers in Poland.

  18. Reduction of badger (Meles meles setts damage to artificial elements of the territory

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    Alessandro Balestrieri

    2000-09-01

    Full Text Available Abstract In the Alessandria section of the Turin railway-basin (northern Italy, the presence of the badger (Meles meles setts in railway embankments causes progressive track subsidence. Rail traffic is dangerous and continuous maintenance and surveillance are required. In the past, the problem was managed without success, by trying to damage and disturb the setts. In 1997 the Italian Railways decided to promote some specific research. Four used setts have been found along the surveyed lines. The choice of a suitable site to dig the sett appears to be influenced only by pedological parameters. A comparison of used and unused banks revealed that soils with significantly lower percentages of gravel and higher percentages of fine sands are preferred. Badgers have been deterred from using one of the found setts, and successively the railway embankment has been covered with chain link fencing. Methods and results are discussed.

  19. Culling-induced changes in badger (Meles meles behaviour, social organisation and the epidemiology of bovine tuberculosis.

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    Philip Riordan

    Full Text Available In the UK, attempts since the 1970s to control the incidence of bovine tuberculosis (bTB in cattle by culling a wildlife host, the European badger (Meles meles, have produced equivocal results. Culling-induced social perturbation of badger populations may lead to unexpected outcomes. We test predictions from the 'perturbation hypothesis', determining the impact of culling operations on badger populations, movement of surviving individuals and the influence on the epidemiology of bTB in badgers using data dervied from two study areas within the UK Government's Randomised Badger Culling Trial (RBCT. Culling operations did not remove all individuals from setts, with between 34-43% of badgers removed from targeted social groups. After culling, bTB prevalence increased in badger social groups neighbouring removals, particularly amongst cubs. Seventy individual adult badgers were fitted with radio-collars, yielding 8,311 locational fixes from both sites between November 2001 and December 2003. Home range areas of animals surviving within removed groups increased by 43.5% in response to culling. Overlap between summer ranges of individuals from Neighbouring social groups in the treatment population increased by 73.3% in response to culling. The movement rate of individuals between social groups was low, but increased after culling, in Removed and Neighbouring social groups. Increased bTB prevalence in Neighbouring groups was associated with badger movements both into and out of these groups, although none of the moving individuals themselves tested positive for bTB. Significant increases in both the frequency of individual badger movements between groups and the emergence of bTB were observed in response to culling. However, no direct evidence was found to link the two phenomena. We hypothesise that the social disruption caused by culling may not only increase direct contact and thus disease transmission between surviving badgers, but may also increase

  20. Defragmentation measures and the increase of a local European badger (Meles meles) population at Eindegooi, the Netherlands

    NARCIS (Netherlands)

    Vink, J.; Apeldoorn, van R.C.; Bekker, G.J.

    2008-01-01

    Ontsnipperingsmaatregelen en de groei van de lokale dassenpopulatie (Meles meles) op Eindegooi . Vanaf 1984 zijn gegevens verzameld op het landgoed Eindegoed en omgeving. De das koloniseerde nieuwe terreinen. In dezelfde periode zijn vele ontsnipperende maatregelen bij wegen getroffen.

  1. Spatial organisation of badgers (Meles meles in a medium-density population in Luxembourg

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    Alain C Frantz

    2010-08-01

    Full Text Available

    Abstract
    Any hypothesis aiming to explain the social organisation of Eurasian badgers Meles meles has to consider its wide inter-population variability. We used radiotracking techniques to investigate the spatial organisation and the pattern of space-use by badger in Luxembourg, where badger density can be considered moderate compared to most of Europe.
    Eight badgers belonging to five social groups were caught and radio-collared. The size of individual home ranges, as assesses by 100% minimum convex polygons in spring-summer 2002 and 2003, varied from 42.5 ha to 171.8 ha. Core areas corresponded to the 50-70% kernel isopleths and covered an average of 10.1% of individual home ranges. The home ranges of badgers caught at the same sett overlapped largely (average 83.3%, whilst the overlap between neighbouring ranges did not exceed 13.8%. Altogether six boundary latrines were found at the intersection of group ranges. Overall, the spatial system of the Luxembourg badgers is quite flexible, with the boundaries of some group ranges remaining constant over the years, while others may expand or contract.
    Riassunto
    Organizzazione spaziale del tasso (Meles meles in una popolazione a media densità del Lussemburgo.
    Qualsiasi ipotesi che voglia spiegare l’organizzazione sociale del tasso Meles meles, deve tener conto della sua ampia variabilità tra le popolazioni.
    Tramite la radiotelemetria e il monitoraggio delle latrine, la struttura territoriale e l’uso dello spazio da parte del tasso sono stati analizzati in una popolazione del Lussemburgo, dove la densità della specie può essere considerata intermedia rispetto ai valori noti per il resto dell’Europa.
    Sono stati marcati con radio-collari otto tassi, appartenenti a cinque diversi gruppi sociali. Le dimensioni delle aree vitali, stimate con il minimo poligono convesso al 100

  2. Effect of culling and vaccination on bovine tuberculosis infection in a European badger (Meles meles) population by spatial simulation modelling.

    Science.gov (United States)

    Abdou, Marwa; Frankena, Klaas; O'Keeffe, James; Byrne, Andrew W

    2016-03-01

    The control of bovine tuberculosis (bTB) in cattle herds in the Republic of Ireland (ROI) is partially hindered by spill-back infection from wild badgers (Meles meles). The aim of this study was to determine the relative effects of interventions (combinations of culling and/or vaccination) on bTB dynamics in an Irish badger population. A spatial agent-based stochastic simulation model was developed to evaluate the effect of various control strategies for bovine tuberculosis in badgers: single control strategies (culling, selective culling, vaccination, and vaccine baits), and combined strategies (Test vaccinate/cull (TVC)), split area approaches using culling and vaccination, or selective culling and vaccination, and mixed scenarios where culling was conducted for five years and followed by vaccination or by a TVC strategy. The effect of each control strategy was evaluated over a 20-year period. Badger control was simulated in 25%, 50%, and 75% area (limited area strategy) or in the entire area (100%, wide area strategy). For endemic bTB, a culling strategy was successful in eradicating bTB from the population only if applied as an area-wide strategy. However, this was achieved only by risking the extinction of the badger population. Selective culling strategies (selective culling or TVC) mitigated this negative impact on the badger population's viability. Furthermore, both strategies (selective culling and TVC) allowed the badger population to recover gradually, in compensation for the population reduction following the initial use of removal strategies. The model predicted that vaccination can be effective in reducing bTB prevalence in badgers, when used in combination with culling strategies (i.e. TVC or other strategies). If fecundity was reduced below its natural levels (e.g. by using wildlife contraceptives), the effectiveness of vaccination strategies improved. Split-area simulations highlighted that interventions can have indirect effects (e.g. on

  3. Climate and the individual: inter-annual variation in the autumnal activity of the European badger (Meles meles.

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    Michael J Noonan

    Full Text Available We establish intra-individual and inter-annual variability in European badger (Meles meles autumnal nightly activity in relation to fine-scale climatic variables, using tri-axial accelerometry. This contributes further to understanding of causality in the established interaction between weather conditions and population dynamics in this species. Modelling found that measures of daylight, rain/humidity, and soil temperature were the most supported predictors of ACTIVITY, in both years studied. In 2010, the drier year, the most supported model included the SOLAR*RH interaction, RAIN, and 30cmTEMP (w = 0.557, while in 2012, a wetter year, the most supported model included the SOLAR*RH interaction, and the RAIN*10cmTEMP (w = 0.999. ACTIVITY also differed significantly between individuals. In the 2012 autumn study period, badgers with the longest per noctem activity subsequently exhibited higher Body Condition Indices (BCI when recaptured. In contrast, under drier 2010 conditions, badgers in good BCI engaged in less per noctem activity, while badgers with poor BCI were the most active. When compared on the same calendar dates, to control for night length, duration of mean badger nightly activity was longer (9.5 hrs ±3.3 SE in 2010 than in 2012 (8.3 hrs ±1.9 SE. In the wetter year, increasing nightly activity was associated with net-positive energetic gains (from BCI, likely due to better foraging conditions. In a drier year, with greater potential for net-negative energy returns, individual nutritional state proved crucial in modifying activity regimes; thus we emphasise how a 'one size fits all' approach should not be applied to ecological responses.

  4. The Effect of Oral Vaccination with Mycobacterium bovis BCG on the Development of Tuberculosis in Captive European Badgers (Meles meles)

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    Chambers, Mark A.; Aldwell, Frank; Williams, Gareth A.; Palmer, Si; Gowtage, Sonya; Ashford, Roland; Dalley, Deanna J.; Davé, Dipesh; Weyer, Ute; Salguero, Francisco J.; Nunez, Alejandro; Nadian, Allan K.; Crawshaw, Timothy; Corner, Leigh A. L.; Lesellier, Sandrine

    2017-01-01

    The European badger (Meles meles) is a reservoir host of Mycobacterium bovis and responsible for a proportion of the tuberculosis (TB) cases seen in cattle in the United Kingdom and Republic of Ireland. An injectable preparation of the bacillus Calmette-Guérin (BCG) vaccine is licensed for use in badgers in the UK and its use forms part of the bovine TB eradication plans of England and Wales. However, there are practical limitations to the widespread application of an injectable vaccine for badgers and a research priority is the development of an oral vaccine deliverable to badgers in bait. Previous studies reported the successful vaccination of badgers with oral preparations of 108 colony forming units (CFU) of both Pasteur and Danish strains of BCG contained within a lipid matrix composed of triglycerides of fatty acids. Protection against TB in these studies was expressed as a reduction in the number and apparent progression of visible lesions, and reductions in the bacterial load and dissemination of infection. To reduce the cost of an oral vaccine and reduce the potential for environmental contamination with BCG, it is necessary to define the minimal efficacious dose of oral BCG for badgers. The objectives of the two studies reported here were to compare the efficacy of BCG Danish strain in a lipid matrix with unformulated BCG given orally, and to evaluate the efficacy of BCG Danish in a lipid matrix at a 10-fold lower dose than previously evaluated in badgers. In the first study, both BCG unformulated and in a lipid matrix reduced the number and apparent progression of visible lesions and the dissemination of infection from the lung. In the second study, vaccination with BCG in the lipid matrix at a 10-fold lower dose produced a similar outcome, but with greater intra-group variability than seen with the higher dose in the first study. Further research is needed before we are able to recommend a final dose of BCG for oral vaccination of badgers against TB or

  5. Detection and characterization of Histoplasma capsulatum in a German badger (Meles meles) by ITS sequencing and multilocus sequencing analysis.

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    Eisenberg, Tobias; Seeger, Helga; Kasuga, Takao; Eskens, Ulrich; Sauerwald, Claudia; Kaim, Ute

    2013-05-01

    A wild badger (Meles meles) with a severe nodular dermatitis was presented for post mortem examination. Numerous cutaneous granulomas with superficial ulceration were present especially on head, dorsum, and forearms were found at necropsy. Histopathological examination of the skin revealed a severe granulomatous dermatitis with abundant intralesional round to spherical yeast-like cells, 2-5 μm in diameter, altogether consistent with the clinical appearance of histoplasmosis farciminosi. The structures stained positively with Grocott's methenamine silver and Periodic acid-Schiff stains, but attempts to isolate the etiologic agent at 25 and 37°C failed. DNA was directly extracted from tissue samples and the ribosomal genes ITS1-5.8S-ITS2 were partially sequenced. This revealed 99% identity to sequences from Ajellomyces capsulatus, the teleomorph of Histoplasma capsulatum, which was derived from a human case in Japan, as well as from horses from Egypt and Poland. Phylogenetic multi-locus sequence analysis demonstrated that the fungus in our case belonged to the Eurasian clade which contains members of former varieties H. capsulatum var. capsulatum, H. capsulatum var. farciminosum. This is the first study of molecular and phylogenetic aspects of H. capsulatum, as well as evidence for histoplasmosis farciminosi in a badger, further illuminating the role of this rare pathogen in Central Europe.

  6. Revisiting the phylogeography and demography of European badgers (Meles meles) based on broad sampling, multiple markers and simulations

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    Frantz, A C; McDevitt, A D; Pope, L C; Kochan, J; Davison, J; Clements, C F; Elmeros, M; Molina-Vacas, G; Ruiz-Gonzalez, A; Balestrieri, A; Van Den Berge, K; Breyne, P; Do Linh San, E; Ågren, E O; Suchentrunk, F; Schley, L; Kowalczyk, R; Kostka, B I; Ćirović, D; Šprem, N; Colyn, M; Ghirardi, M; Racheva, V; Braun, C; Oliveira, R; Lanszki, J; Stubbe, A; Stubbe, M; Stier, N; Burke, T

    2014-01-01

    Although the phylogeography of European mammals has been extensively investigated since the 1990s, many studies were limited in terms of sampling distribution, the number of molecular markers used and the analytical techniques employed, frequently leading to incomplete postglacial recolonisation scenarios. The broad-scale genetic structure of the European badger (Meles meles) is of interest as it may result from historic restriction to glacial refugia and/or recent anthropogenic impact. However, previous studies were based mostly on samples from western Europe, making it difficult to draw robust conclusions about the location of refugia, patterns of postglacial expansion and recent demography. In the present study, continent-wide sampling and analyses with multiple markers provided evidence for two glacial refugia (Iberia and southeast Europe) that contributed to the genetic variation observed in badgers in Europe today. Approximate Bayesian computation provided support for a colonisation of Scandinavia from both Iberian and southeastern refugia. In the whole of Europe, we observed a decline in genetic diversity with increasing latitude, suggesting that the reduced diversity in the peripheral populations resulted from a postglacial expansion processes. Although MSVAR v.1.3 also provided evidence for recent genetic bottlenecks in some of these peripheral populations, the simulations performed to estimate the method's power to correctly infer the past demography of our empirical populations suggested that the timing and severity of bottlenecks could not be established with certainty. We urge caution against trying to relate demographic declines inferred using MSVAR with particular historic or climatological events. PMID:24781805

  7. Long-term temporal trends and estimated transmission rates for Mycobacterium bovis infection in an undisturbed high-density badger (Meles meles) population.

    Science.gov (United States)

    Delahay, R J; Walker, N; Smith, G C; Smith, G S; Wilkinson, D; Clifton-Hadley, R S; Cheeseman, C L; Tomlinson, A J; Chambers, M A

    2013-07-01

    We describe epidemiological trends in Mycobacterium bovis infection in an undisturbed wild badger (Meles meles) population. Data were derived from the capture, clinical sampling and serological testing of 1803 badgers over 9945 capture events spanning 24 years. Incidence and prevalence increased over time, exhibiting no simple relationship with host density. Potential explanations are presented for a marked increase in the frequency of positive serological test results. Transmission rates (R0) estimated from empirical data were consistent with modelled estimates and robust to changes in test sensitivity and the spatial extent of the population at risk. The risk of a positive culture or serological test result increased with badger age, and varied seasonally. Evidence consistent with progressive disease was found in cubs. This study demonstrates the value of long-term data and the repeated application of imperfect diagnostic tests as indices of infection to reveal epidemiological trends in M. bovis infection in badgers.

  8. Angiostrongylus vasorum in red foxes (Vulpes vulpes and badgers (Meles meles from Central and Northern Italy

    Directory of Open Access Journals (Sweden)

    Marta Magi

    2010-06-01

    Full Text Available Abstract During 2004-2005 and 2007-2008, 189 foxes (Vulpes vulpes and 6 badgers (Meles meles were collected in different areas of Central Northern Italy (Piedmont, Liguria and Tuscany and examined for Angiostrongylus vasorum infection. The prevalence of the infection was significantly different in the areas considered, with the highest values in the district of Imperia (80%, Liguria and in Montezemolo (70%, southern Piedmont; the prevalence in Tuscany was 7%. One badger collected in the area of Imperia turned out to be infected, representing the first report of the parasite in this species in Italy. Further studies are needed to evaluate the role played by fox populations as reservoirs of infection and the probability of its spreading to domestic dogs.
    Riassunto Angiostrongylus vasorum nella volpe (Vulpes vulpes e nel tasso (Meles meles in Italia centro-settentrionale. Nel 2004-2005 e 2007-2008, 189 volpi (Vulpes vulpes e 6 tassi (Meles meles provenienti da differenti aree dell'Italia settentrionale e centrale (Piemonte, Liguria Toscana, sono stati esaminati per la ricerca di Angiostrongylus vasorum. La prevalenza del nematode è risultata significativamente diversa nelle varie zone, con valori elevati nelle zone di Imperia (80% e di Montezemolo (70%, provincia di Cuneo; la prevalenza in Toscana è risultata del 7%. Un tasso proveniente dall'area di Imperia è risultato positivo per A. vasorum; questa è la prima segnalazione del parassita in tale specie in Italia. Ulteriori studi sono necessari per valutare il potenziale della volpe come serbatoio e la possibilità di diffusione della parassitosi ai cani domestici.

    doi:10.4404/hystrix-20.2-4442

  9. Population estimation and trappability of the European badger (Meles meles: implications for tuberculosis management.

    Directory of Open Access Journals (Sweden)

    Andrew W Byrne

    Full Text Available Estimates of population size and trappability inform vaccine efficacy modelling and are required for adaptive management during prolonged wildlife vaccination campaigns. We present an analysis of mark-recapture data from a badger vaccine (Bacille Calmette-Guérin study in Ireland. This study is the largest scale (755 km(2 mark-recapture study ever undertaken with this species. The study area was divided into three approximately equal-sized zones, each with similar survey and capture effort. A mean badger population size of 671 (SD: 76 was estimated using a closed-subpopulation model (CSpM based on data from capturing sessions of the entire area and was consistent with a separate multiplicative model. Minimum number alive estimates calculated from the same data were on average 49-51% smaller than the CSpM estimates, but these are considered severely negatively biased when trappability is low. Population densities derived from the CSpM estimates were 0.82-1.06 badgers km(-2, and broadly consistent with previous reports for an adjacent area. Mean trappability was estimated to be 34-35% per session across the population. By the fifth capture session, 79% of the adult badgers caught had been marked previously. Multivariable modelling suggested significant differences in badger trappability depending on zone, season and age-class. There were more putatively trap-wary badgers identified in the population than trap-happy badgers, but wariness was not related to individual's sex, zone or season of capture. Live-trapping efficacy can vary significantly amongst sites, seasons, age, or personality, hence monitoring of trappability is recommended as part of an adaptive management regime during large-scale wildlife vaccination programs to counter biases and to improve efficiencies.

  10. Badger Meles meles and Fox Vulpes vulpes food in agricultural land in the western Po Plain (Italy

    Directory of Open Access Journals (Sweden)

    Luca Canova

    1994-05-01

    Full Text Available Abstract Fox and badger diets were studied by means of scat analysis in agricultural land in northern Italy. Earthworms and corn were the staple food for the badger, while foxes fed mainly on animal food (birds and mammals. Dietary overlap between the two species was low. Fox diets were substantially similar to those in north-central Europe and other areas of Italy. Badger diets differed from those in mediterranean areas of Italy and were similar to diets of north European populations. Riassunto Alimentazione di Tasso Meles meles e Volpe Vulpes vulpes in aree agricole della Pianura Padana occidentale - La dieta di tasso e volpe in un'area agricola della Pianura Padana occidentale è stata studiata mediante analisi delle feci. Lombrichi e mais rappresentano la principale fonte alimentare per il tasso, mentre la dieta della volpe è basata prevalentemente su uccelli e mammiferi. La sovrapposizione alimentare fra le due specie è ridotta. La dieta della volpe è simile a quella delle popolazioni dell'Europa centrale e settentrionale; la dieta del tasso differisce nettamente da quella delle popolazioni italiane che vivono in ambiente mediterraneo.

  11. A multi-metric approach to investigate the effects of weather conditions on the demographic of a terrestrial mammal, the european badger (Meles meles).

    Science.gov (United States)

    Nouvellet, Pierre; Newman, Chris; Buesching, Christina D; Macdonald, David W

    2013-01-01

    Models capturing the full effects of weather conditions on animal populations are scarce. Here we decompose yearly temperature and rainfall into mean trends, yearly amplitude of change and residual variation, using daily records. We establish from multi-model inference procedures, based on 1125 life histories (from 1987 to 2008), that European badger (Meles meles) annual mortality and recruitment rates respond to changes in mean trends and to variability in proximate weather components. Variation in mean rainfall was by far the most influential predictor in our analysis. Juvenile survival and recruitment rates were highest at intermediate levels of mean rainfall, whereas low adult survival rates were associated with only the driest, and not the wettest, years. Both juvenile and adult survival rates also exhibited a range of tolerance for residual standard deviation around daily predicted temperature values, beyond which survival rates declined. Life-history parameters, annual routines and adaptive behavioural responses, which define the badgers' climatic niche, thus appear to be predicated upon a bounded range of climatic conditions, which support optimal survival and recruitment dynamics. That variability in weather conditions is influential, in combination with mean climatic trends, on the vital rates of a generalist, wide ranging and K-selected medium-sized carnivore, has major implications for evolutionary ecology and conservation.

  12. A multi-metric approach to investigate the effects of weather conditions on the demographic of a terrestrial mammal, the european badger (Meles meles.

    Directory of Open Access Journals (Sweden)

    Pierre Nouvellet

    Full Text Available Models capturing the full effects of weather conditions on animal populations are scarce. Here we decompose yearly temperature and rainfall into mean trends, yearly amplitude of change and residual variation, using daily records. We establish from multi-model inference procedures, based on 1125 life histories (from 1987 to 2008, that European badger (Meles meles annual mortality and recruitment rates respond to changes in mean trends and to variability in proximate weather components. Variation in mean rainfall was by far the most influential predictor in our analysis. Juvenile survival and recruitment rates were highest at intermediate levels of mean rainfall, whereas low adult survival rates were associated with only the driest, and not the wettest, years. Both juvenile and adult survival rates also exhibited a range of tolerance for residual standard deviation around daily predicted temperature values, beyond which survival rates declined. Life-history parameters, annual routines and adaptive behavioural responses, which define the badgers' climatic niche, thus appear to be predicated upon a bounded range of climatic conditions, which support optimal survival and recruitment dynamics. That variability in weather conditions is influential, in combination with mean climatic trends, on the vital rates of a generalist, wide ranging and K-selected medium-sized carnivore, has major implications for evolutionary ecology and conservation.

  13. Variations in Badger (Meles meles Sett Microclimate: Differential Cub Survival between Main and Subsidiary Setts, with Implications for Artificial Sett Construction

    Directory of Open Access Journals (Sweden)

    Yayoi Kaneko

    2010-01-01

    Full Text Available Maintaining homeothermy is essential for mammals, but has considerable energetic costs. In this study, we monitored the internal conditions of setts within five European badger (Meles meles social groups during the cub-rearing season, that is, February to July, in 2004. Sett temperature showed substantial and significant variation over this period, while relative humidity remained stable throughout. Microclimate was least stable during the period for which cubs remain entirely below ground between February and April; however here the instrumented main sett demonstrated a much warmer and more stable temperature regime than did nearby subsidiary outliers. We thus postulate that the energy budget of reproducing females could be affected by even small temperature fluctuations, militating for optimal sett choice. For comparison we also report microclimatic data from two artificial setts and found them to be markedly inferior in terms of thermal insulative properties, suggesting that man-made setts may need more careful consideration in both thermal and spatial setts network in each territory to adequately compensate the loss (e.g., destruction due to development of a natural sett, especially as a breeding den.

  14. Neighbouring-group composition and within-group relatedness drive extra-group paternity rate in the European badger (Meles meles).

    Science.gov (United States)

    Annavi, G; Newman, C; Dugdale, H L; Buesching, C D; Sin, Y W; Burke, T; Macdonald, D W

    2014-10-01

    Extra-group paternity (EGP) occurs commonly among group-living mammals and plays an important role in mating systems and the dynamics of sexual selection; however, socio-ecological and genetic correlates of EGP have been underexplored. We use 23 years of demographic and genetic data from a high-density European badger (Meles meles) population, to investigate the relationship between the rate of EGP in litters and mate availability, mate incompatibility and mate quality (heterozygosity). Relatedness between within-group assigned mothers and candidate fathers had a negative quadratic effect on EGP, whereas the number of neighbouring-group candidate fathers had a linear positive effect. We detected no effect of mean or maximum heterozygosity of within-group candidate fathers on EGP. Consequently, EGP was associated primarily with mate availability, subject to within-group genetic effects, potentially to mitigate mate incompatibility and inbreeding. In badgers, cryptic female choice, facilitated by superfecundation, superfoetation and delayed implantation, prevents males from monopolizing within-group females. This resonates with a meta-analysis in group-living mammals, which proposed that higher rates of EGP occur when within-group males cannot monopolize within-group females. In contrast to the positive meta-analytic association, however, we found that EGP associated negatively with the number of within-group assigned mothers and the number of within-group candidate fathers; potentially a strategy to counter within-group males committing infanticide. The relationship between the rate of EGP and socio-ecological or genetic factors can therefore be intricate, and the potential for cryptic female choice must be accounted for in comparative studies.

  15. Will Trespassers Be Prosecuted or Assessed According to Their Merits? A Consilient Interpretation of Territoriality in a Group-Living Carnivore, the European Badger (Meles meles.

    Directory of Open Access Journals (Sweden)

    Helga V Tinnesand

    Full Text Available Socio-spatial interactions of Carnivores have traditionally been described using the vocabulary of territoriality and aggression, with scent marks interpreted as 'scent fences'. Here, we investigate the role of olfactory signals in assumed territorial marking of group-living solitary foragers using European badgers Meles meles as a model. We presented anal gland secretions (n = 351 from known individuals to identifiable recipients (n = 187, to assess response-variation according to familiarity (own-group, neighbours, strangers and spatial context (in-context: at a shared border; out-of-context: at an unshared border/ the main sett. Sniffing and over-marking (with subcaudal gland secretion responses were strongest to anal gland secretions from strangers, intermediate to neighbouring-group and weakest to own-group members. Secretions from both, strangers and neighbours, were sniffed for longer than were own-group samples, although neighbour-secretion presented out-of-context evoked no greater interest than in-context. On an individual level, responses were further moderated by the relevance of individual-specific donor information encoded in the secretion, as it related to the physiological state of the responder. There was a trend bordering on significance for males to sniff for longer than did females, but without sex-related differences in the frequency of subcaudal over-marking responses, and males over-marked oestrous female secretions more than non-oestrous females. There were no age-class related differences in sniff-duration or in over-marking. Evaluating these results in the context of the Familiarity hypothesis, the Threat-level hypothesis, and the Individual advertisement hypothesis evidences that interpretations of territorial scent-marks depicting rigid and potentially agonistic discrimination between own- and foreign-group conspecifics are overly simplistic. We use our findings to advance conceptual understanding of badger socio

  16. Dynamics of a local badger (Meles meles) population in the Netherlands over the years 1983-2001

    NARCIS (Netherlands)

    Apeldoorn, van R.C.; Vink, J.; Matyástík, T.

    2006-01-01

    Long-term data on badger population dynamics are scarce. For 19 years data on badger and sett numbers were collected by direct observation of a Local population in the province of Utrecht, the Netherlands. Analysis of these data show two different patterns of population growth. The first shows a sto

  17. Diet of the Eurasian badger (Meles meles in an area of the Italian Prealps

    Directory of Open Access Journals (Sweden)

    Monica Marassi

    2002-12-01

    Full Text Available Abstract Samples of Eurasian badger faeces (n= 147 were collected at monthly intervals from October 1997 to December 1999 in an area of the Italian Prealps (58 km², on the eastern coast of Lario (Como Lake. The altitude of the area ranged from 200 to 1300 m. Badger scats were analysed to estimate the relative volume and the frequency of occurrence of identifiable food items. Fruits, arthropodes, earthworms and mammals constituted the main food categories. Differences were found between the seasonal frequency of occurrences of arthropodes, earthworms and mammals, considering however that the small sample size in summer does not allow any definitive conclusions. The wide range of food items eaten by badgers and the seasonal differences would suggest that the badger is a "generalist" species which adopts an opportunist feeding strategy.

  18. Tejón europeo Meles meles (Linnaeus, 1758)

    OpenAIRE

    2014-01-01

    Salgado I (2014) Tejón europeo Meles meles (Linnaeus, 1758). En: Calzada J, Clavero M, Fernández A (eds). Guía virtual de los indicios de los mamíferos de la Península Ibérica, Islas Baleares y Canarias. Sociedad Española para la Conservación y Estudio de los Mamíferos (SECEM). http://www. secem.es/guiadeindiciosmamiferos/

  19. The prevalence and distribution of Mycobacterium bovis infection in European badgers (Meles meles) as determined by enhanced post mortem examination and bacteriological culture.

    Science.gov (United States)

    Murphy, D; Gormley, E; Costello, E; O'Meara, D; Corner, L A L

    2010-02-01

    The accurate diagnosis of Mycobacterium bovis infection in badgers is key to understanding the epidemiology of tuberculosis in this species and has significant implications for devising strategies to limit spread of the disease. In this study, badgers (n=215) in the Republic of Ireland were examined at post mortem and tissues were collected from a range of anatomical locations and pooled into groups for bacterial culture of M. bovis. By assessing confirmed gross visible lesions (VL) alone, infection was detected in 12.1% of badgers. However, by including the results of all culture positive pooled samples, the overall infection prevalence increased significantly to 36.3%. Two-thirds (66.7%) of infected animals had no visible lesions (NVL). While the thoracic cavity (lungs and pulmonary lymph nodes) was found to be the most common site of infection, in a proportion of animals infection was absent from the lungs and draining lymph nodes and was confined to the lymph nodes of the carcase or the head. This may indicate an early extrapulmonary dissemination of infection or alternatively, in the case of the head lymph nodes, a secondary pathogenic pathway involving the lymphoid tissues of the upper respiratory tract (URT).

  20. Badger hair in shaving brushes comes from protected Eurasian badgers

    NARCIS (Netherlands)

    Domingo-Roura, X.; Marmi, J.; Ferrando, A.; López-Giráldez, F.; Macdonald, D.W.; Jansman, H.A.H.

    2006-01-01

    The Eurasian badger (Meles meles) is included in Appendix III of the Bern Convention and protected by national laws in many European countries. Badger hair is used to manufacture luxury shaving brushes, although it is frequently argued that the hog badger (Arctonyx collaris), which in Europe is an i

  1. Contributo alla conoscenza della dieta del Tasso (Meles meles nella pianura padana

    Directory of Open Access Journals (Sweden)

    Claudio Prigioni

    2003-10-01

    Full Text Available Nel periodo febbraio 2000 - gennaio 2002, nell'ambito di una ricerca sull'eco-etologia del Tasso (Meles meles nel sistema delle aree protette della fascia fluviale del Po - tratto vercellese-alessandrino, sono state raccolte e analizzate 142 feci, reperite sia in aree di pianura (N = 43 sia in ambiente collinare (N=97. Gran parte del territorio pianeggiante è dominato da pioppeti, riso e mais, mentre sulle basse colline che contornano la golena del Po prevalgono le formazioni boschive con Roverella, ciliegi, Olmo campestre, Robinia, Sambuco e Sanguinello. Le componenti principali della dieta complessiva, valutate sia come frequenza percentuale (F% sia come volume medio percentuale (Vm% sono in primo luogo i Lumbricidi (F% = 89,0; Vm% = 44,7, seguiti dal mais (F% =29,4; Vm% = 14,9 e dai frutti (F% =25,7; Vm% = 13,2; le altre componenti alimentari assumono valori inferiori al 5% come Vm. In aree golenali, il consumo di Lumbricidi, pur non variando in termini di frequenza, è inferiore come volume (U Mann-Whitney = 1430,5; P < 0,01 a quello registrato nelle zone collinari; tale minor consumo è tuttavia compensato da un maggiore utilizzo di fonti di proteine animali alternative, quali Roditori (χ² = 20,3; P < 0,01 e Anuri (χ² = 12,1; P < 0,01. I frutti sono utilizzati esclusivamente in collina, dove è sicuramente maggiore la disponibilità sia delle specie selvatiche (ghiande, nocciole, Erba mora e ciliegie selvatiche sia di quelle coltivate (mele, ciliegie, uva. Anche categorie secondarie, come gli Insetti, soprattutto Coleotteri terricoli, compaiono principalmente in aree collinari. Le risorse il cui consumo varia stagionalmente sono i frutti, che prevalgono in autunno, e gli Anuri, utilizzati esclusivamente in primavera (χ² = 43,2; P < 0,01. I Lumbricidi, contrariamente alle aspettative, si rinvengono con frequenze pressoché equivalenti e superiori all'80% in tutte le stagioni, malgrado una presumibile minore disponibilit

  2. METODICAL ASPECT OF INSPECTION, REMOVAL AND PACKAGING OF PRODUCTS, STRUCTURALLY SIMILAR TO MELEE WEAPONS (KNIVES AT THE SCENE

    Directory of Open Access Journals (Sweden)

    Denis Safonov

    2015-07-01

    Full Text Available The article discusses the improvement of tactics of survey of a scene in the area of evidentiary information, in particular, reveals the problematic issues of inspection, removal and packaging of products, structurally similar to melee weapons.

  3. MHC class II-assortative mate choice in European badgers (Meles meles)

    NARCIS (Netherlands)

    Sin, Yung Wa; Annavi, Geetha; Newman, Chris; Buesching, Christina D.; Burke, Terry; Macdonald, David W.; Dugdale, Hannah

    2015-01-01

    The major histocompatibility complex (MHC) plays a crucial role in the immune system, and in some species, it is a target by which individuals choose mates to optimize the fitness of their offspring, potentially mediated by olfactory cues. Under the genetic compatibility hypothesis, individuals are

  4. Morphological variability and developmental instability in subpopulations of the Eurasian badger (Meles meles) in Denmark

    DEFF Research Database (Denmark)

    Pertoldi, Cino; Bach, Lars Arve; Madsen, Aksel Bo;

    2002-01-01

    Aim Local populations from different geographical regions may differ in the selection regimes to which they are exposed. Differences in environmental factors and population density may affect the relative importance of different selective forces (e.g. natural vs. sexual selection). We suggest...

  5. Pathogen burden, co-infection and major histocompatibility complex variability in the European badger (Meles meles)

    NARCIS (Netherlands)

    Sin, Yung Wa; Annavi, Geetha; Dugdale, Hannah L.; Newman, Chris; Burke, Terry; MacDonald, David W.

    2014-01-01

    Pathogen-mediated selection is thought to maintain the extreme diversity in the major histocompatibility complex (MHC) genes, operating through the heterozygote advantage, rare-allele advantage and fluctuating selection mechanisms. Heterozygote advantage (i.e. recognizing and binding a wider range o

  6. Evolution of MHC class I genes in the European badger (Meles meles)

    NARCIS (Netherlands)

    Sin, Yung Wa; Dugdale, Hannah L.; Newman, Chris; Macdonald, David W.; Burke, Terry

    2012-01-01

    The major histocompatibility complex (MHC) plays a central role in the adaptive immune system and provides a good model with which to understand the evolutionary processes underlying functional genes. Trans-species polymorphism and orthology are both commonly found in MHC genes; however, mammalian M

  7. Mouthing off about developmental stress : Individuality of palate marking in the European badger and its relationship with juvenile parasitoses

    NARCIS (Netherlands)

    Nouvellet, P.; Buesching, C. D.; Dugdale, H. L.; Newman, C.; Macdonald, D. W.

    2011-01-01

    Fluctuating asymmetry has become a common measure of developmental instability (the inability of individuals to buffer their development from environmental stresses). Here we investigate the symmetry of palatine marking (maculation) in the European badger Meles meles, with regard to the developmenta

  8. Valence bond phases in S = 1/2 Kane-Mele-Heisenberg model.

    Science.gov (United States)

    Zare, Mohammad H; Mosadeq, Hamid; Shahbazi, Farhad; Jafari, S A

    2014-11-12

    The phase diagram of the Kane-Mele-Heisenberg model in a classical limit [47] contains disordered regions in the coupling space, as the result of competition between different terms in the Hamiltonian, leading to frustration in finding a unique ground state. In this work we explore the nature of these phases in the quantum limit, for a S = 1/2. Employing exact diagonalization in Sz and nearest neighbour valence bond bases, and bond and plaquette valence bond mean field theories, we show that the disordered regions are divided into ordered quantum states in the form of plaquette valence bond crystals and staggered dimerized phases.

  9. Sizeable Kane-Mele-like spin orbit coupling in graphene decorated with iridium clusters

    Science.gov (United States)

    Qin, Yuyuan; Wang, Siqi; Wang, Rui; Bu, Haijun; Wang, Xuefeng; Wang, Xinran; Song, Fengqi; Wang, Baigeng; Wang, Guanghou

    2016-05-01

    The spin-orbit coupling strength of graphene can be enhanced by depositing iridium nanoclusters. Weak localization is intensely suppressed near zero fields after the cluster deposition, rather than changing to weak anti-localization. Fitting the magnetoresistance gives the spin relaxation time, which increases by two orders with the application of a back gate. The spin relaxation time is found to be proportional to the electronic elastic scattering time, demonstrating the Elliot-Yafet spin relaxation mechanism. A sizeable Kane-Mele-like coupling strength of over 5.5 meV is determined by extrapolating the temperature dependence to zero.

  10. The topological Anderson insulator phase in the Kane-Mele model.

    Science.gov (United States)

    Orth, Christoph P; Sekera, Tibor; Bruder, Christoph; Schmidt, Thomas L

    2016-04-05

    It has been proposed that adding disorder to a topologically trivial mercury telluride/cadmium telluride (HgTe/CdTe) quantum well can induce a transition to a topologically nontrivial state. The resulting state was termed topological Anderson insulator and was found in computer simulations of the Bernevig-Hughes-Zhang model. Here, we show that the topological Anderson insulator is a more universal phenomenon and also appears in the Kane-Mele model of topological insulators on a honeycomb lattice. We numerically investigate the interplay of the relevant parameters, and establish the parameter range in which the topological Anderson insulator exists. A staggered sublattice potential turns out to be a necessary condition for the transition to the topological Anderson insulator. For weak enough disorder, a calculation based on the lowest-order Born approximation reproduces quantitatively the numerical data. Our results thus considerably increase the number of candidate materials for the topological Anderson insulator phase.

  11. Realization of the Haldane-Kane-Mele Model in a System of Localized Spins

    Science.gov (United States)

    Kim, Se Kwon; Ochoa, Héctor; Zarzuela, Ricardo; Tserkovnyak, Yaroslav

    2016-11-01

    We study a spin Hamiltonian for spin-orbit-coupled ferromagnets on the honeycomb lattice. At sufficiently low temperatures supporting the ordered phase, the effective Hamiltonian for magnons, the quanta of spin-wave excitations, is shown to be equivalent to the Haldane model for electrons, which indicates the nontrivial topology of the band and the existence of the associated edge state. At high temperatures comparable to the ferromagnetic-exchange strength, we take the Schwinger-boson representation of spins, in which the mean-field spinon band forms a bosonic counterpart of the Kane-Mele model. The nontrivial geometry of the spinon band can be inferred by detecting the spin Nernst effect. A feasible experimental realization of the spin Hamiltonian is proposed.

  12. Modelling the impact of vaccination on tuberculosis in badgers.

    Science.gov (United States)

    Hardstaff, J L; Bulling, M T; Marion, G; Hutchings, M R; White, P C L

    2013-07-01

    Tuberculosis (TB) in livestock, caused by Mycobacterium bovis, persists in many countries. In Britain, efforts to control TB through the culling of badgers (Meles meles), the principal wildlife host, have so far been unsuccessful, and there is significant interest in vaccination of badgers as an alternative or complementary strategy [corrected]. Using a simulation model, we show that where TB is self-contained within the badger population and there are no external sources of infection, limited-duration vaccination at a high level of efficacy can reduce or even eradicate TB from the badger population. However, where sources of external infection persist, benefits in TB reduction in badgers can only be achieved by ongoing, annual vaccination. Vaccination is likely to be most effective as part of an integrated disease management strategy incorporating a number of different approaches across the entire host community.

  13. MHC class II genes in the European badger (Meles meles) : Characterization, patterns of variation, and transcription analysis

    NARCIS (Netherlands)

    Sin, Yung Wa; Dugdale, Hannah L.; Newman, Chris; Macdonald, David W.; Burke, Terry

    2012-01-01

    The major histocompatibility complex (MHC) comprises many genes, some of which are polymorphic with numerous alleles. Sequence variation among alleles is most pronounced in exon 2 of the class II genes, which encodes the alpha 1 and beta 1 domains that form the antigen-binding site (ABS) for the pre

  14. Impacts of removing badgers on localised counts of hedgehogs.

    Directory of Open Access Journals (Sweden)

    Iain D Trewby

    Full Text Available Experimental evidence of the interactions among mammalian predators that eat or compete with one another is rare, due to the ethical and logistical challenges of managing wild populations in a controlled and replicated way. Here, we report on the opportunistic use of a replicated and controlled culling experiment (the Randomised Badger Culling Trial to investigate the relationship between two sympatric predators: European badgers Meles meles and western European hedgehogs Erinaceus europaeus. In areas of preferred habitat (amenity grassland, counts of hedgehogs more than doubled over a 5-year period from the start of badger culling (from 0.9 ha-1 pre-cull to 2.4 ha-1 post-cull, whereas hedgehog counts did not change where there was no badger culling (0.3-0.3 hedgehogs ha-1. This trial provides experimental evidence for mesopredator release as an outcome of management of a top predator.

  15. Kane-Mele Hubbard model on a zigzag ribbon: Stability of the topological edge states and quantum phase transitions

    Science.gov (United States)

    Chung, Chung-Hou; Lee, Der-Hau; Chao, Sung-Po

    2014-07-01

    We study the quantum phases and phase transitions of the Kane-Mele Hubbard (KMH) model on a zigzag ribbon of honeycomb lattice at a finite size via the weak-coupling renormalization group (RG) approach. In the noninteracting limit, the Kane-Mele (KM) model is known to support topological edge states where electrons show helical property with orientations of the spin and momentum being locked. The effective interedge hopping terms are generated due to finite-size effect. In the presence of an on-site Coulomb (Hubbard) interaction and the interedge hoppings, special focus is put on the stability of the topological edge states (TI phase) in the KMH model against (i) the charge and spin gaped (II) phase, (ii) the charge gaped but spin gapless (IC) phase, and (iii) the spin gaped but charge gapless (CI) phase depending on the number (even/odd) of the zigzag ribbons, doping level (electron filling factor) and the ratio of the Coulomb interaction to the interedge tunneling. We discuss different phase diagrams for even and odd numbers of zigzag ribbons. We find the TI-CI, II-IC, and II-CI quantum phase transitions are of the Kosterlitz-Thouless (KT) type. By computing various correlation functions, we further analyze the nature and leading instabilities of these phases. The relevance of our results for graphene is discussed.

  16. Gauge-theoretic invariants for topological insulators: A bridge between Berry, Wess-Zumino, and Fu-Kane-Mele

    CERN Document Server

    Monaco, Domenico

    2016-01-01

    We establish a connection between two recently-proposed approaches to the understanding of the geometric origin of the Fu-Kane-Mele invariant $\\mathrm{FKM} \\in \\mathbb{Z}_2$, arising in the context of 2-dimensional time-reversal symmetric topological insulators. On the one hand, the $\\mathbb{Z}_2$ invariant can be formulated in terms of the Berry connection and the Berry curvature of the Bloch bundle of occupied states over the Brillouin torus. On the other, using techniques from the theory of bundle gerbes it is possible to provide an expression for $\\mathrm{FKM}$ containing the square root of the Wess-Zumino amplitude for a certain $U(N)$-valued field over the Brillouin torus. We link the two formulas by showing directly the equality between the above mentioned Wess-Zumino amplitude and the Berry phase, as well as between their square roots. An essential tool of independent interest is an equivariant version of the adjoint Polyakov-Wiegmann formula for fields $\\mathbb{T}^2 \\to U(N)$, of which we provide a p...

  17. Badgers prefer cattle pasture but avoid cattle: implications for bovine tuberculosis control.

    Science.gov (United States)

    Woodroffe, Rosie; Donnelly, Christl A; Ham, Cally; Jackson, Seth Y B; Moyes, Kelly; Chapman, Kayna; Stratton, Naomi G; Cartwright, Samantha J

    2016-10-01

    Effective management of infectious disease relies upon understanding mechanisms of pathogen transmission. In particular, while models of disease dynamics usually assume transmission through direct contact, transmission through environmental contamination can cause different dynamics. We used Global Positioning System (GPS) collars and proximity-sensing contact-collars to explore opportunities for transmission of Mycobacterium bovis [causal agent of bovine tuberculosis] between cattle and badgers (Meles meles). Cattle pasture was badgers' most preferred habitat. Nevertheless, although collared cattle spent 2914 collar-nights in the home ranges of contact-collared badgers, and 5380 collar-nights in the home ranges of GPS-collared badgers, we detected no direct contacts between the two species. Simultaneous GPS-tracking revealed that badgers preferred land > 50 m from cattle. Very infrequent direct contact indicates that badger-to-cattle and cattle-to-badger M. bovis transmission may typically occur through contamination of the two species' shared environment. This information should help to inform tuberculosis control by guiding both modelling and farm management.

  18. Mele Pesti soovitab : Jõulujazz / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2003-01-01

    Aafrika laulja Malia kontserdist Sakala keskuses; taani kitarristi Pierre Dorge kontserdist Tallinna kunstihoones; Hedvig Hansoni ja Andre Maakeri kontserdist Niguliste kirikus 11. dets. festivali Jõulujazz raames

  19. Neighbouring-group composition and within-group relatedness drive extra-group paternity rate in the European badger (Meles meles)

    NARCIS (Netherlands)

    Annavi, G.; Newman, C.; Dugdale, H. L.; Buesching, C. D.; Sin, Y. W.; Burke, T.; Macdonald, D. W.

    2014-01-01

    Extra-group paternity (EGP) occurs commonly among group-living mammals and plays an important role in mating systems and the dynamics of sexual selection; however, socio-ecological and genetic correlates of EGP have been underexplored. We use 23years of demographic and genetic data from a high-densi

  20. Theobromine intoxication in a red fox and a European badger in Sweden.

    Science.gov (United States)

    Jansson, D S; Galgan, V; Schubert, B; Segerstad, C H

    2001-04-01

    A red fox (Vulpes vulpes) and a European badger (Meles meles) were found dead on a golf-course in October 1997 near Stockholm (Sweden). At necropsy, both animals were obese and the main finding was acute circulatory collapse. Theobromine intoxication was suspected as chocolate waste was available at a nearby farm and no other cause of death could be detected. Gastric contents and samples of liver from both animals were analyzed by reversed-phase high pressure liquid chromatography for the presence of methylxanthines. Theobromine and caffeine were detected in gastric contents and theobromine was identified in the liver samples from both animals. This appears to be the first report of theobromine intoxication in the red fox and the European badger.

  1. Seasonal variation in the food habits of badgers in an Alpine valley

    Directory of Open Access Journals (Sweden)

    Mauro Lucherini

    1995-12-01

    Full Text Available Abstract The seasonal variation in diet and trophic niche breadth of the European badger (Meles meles have been studied in a high-elevation Alpine ecosystem from March 1990 to October 1991. The analysis of 76 faecal samples showed that Orthoptera, Coleoptera, insect larvae (mainly Coleoptera and Lepidoptera, earthworms and small mammals were the main food items. Both inter- and intra-year differences in food habits were detected. These differences seem primarily related to variations in food availability. Riassunto Variazione stagionale dell'alimentazione del tasso in una valle alpina - La variazione stagionale della dieta e dell'ampiezza di nicchia trofica del tasso (Meles meles è stata studiata in un ecosistema alpino di alta quota tra marzo 1990 e ottobre 1991. L'analisi di 76 campioni fecali ha mostrato che ortotteri, coleotteri, larve di insetti (principalmente coleotteri e lepidotteri, lombrichi e micromammiferi sono state le categorie principali della dieta del tasso. Nell'alimentazione sono state rilevate differenze sia stagionali che annuali. Queste differenze sono apparse essenzialmente connesse a variazioni delle disponibilità trofiche.

  2. Exploration of the power of routine surveillance data to assess the impacts of industry-led badger culling on bovine tuberculosis incidence in cattle herds.

    Science.gov (United States)

    Donnelly, C A; Bento, A I; Goodchild, A V; Downs, S H

    2015-10-24

    In the UK, badgers (Meles meles) are a well-known reservoir of infection, and there has been lively debate about whether badger culling should play a role within the British Government's strategy to control and eventually eradicate tuberculosis (TB) in cattle. The key source of information on the potential for badger culling to reduce cattle TB in high-cattle-TB-incidence areas remains the Randomised Badger Culling Trial (RBCT). In late 2013, two pilot areas were subjected to industry-led badger culls. These culls differed importantly from RBCT culling in that free-ranging as well as cage-trapped badgers were shot, and culling took place over a longer time period. Their impacts will be harder to evaluate because culling was not randomised between comparable areas for subsequent comparisons of culling versus no culling. However, the authors present calculations that explore the power of routine surveillance data to assess the impacts of industry-led badger culling on cattle TB incidence. The rollout of industry-led culling as a component of a national cattle TB control policy would be controversial. The best possible estimates of the effects of such culling on confirmed cattle TB incidence should be made available to inform all stakeholders and policy-makers.

  3. Kiiksuga kangelased / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2006-01-01

    USA roadmovie tüüpi sisukad mängufilmid "Väike Miss Päikesepaiste" ("Little Miss Sunshine"; režissöörid Jonathan Dayton ja Valerie Faris, peaosas 10-aastane Abigail Breslin) ja "Transamerica" ( režissöör Duncan Tucker, peaosas Felicity Huffman)

  4. Unine talvefestival / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2005-01-01

    Kolmanda rahvusvahelise teatrifestivali "Talveöö unenägu" külalislavastustest : Gesher teatri esituses ja J. Arie lavastuses "Ori", Valgevene Akad. Teatri esituses A. Tshehhovi "Kirsiaia" järgi "SV" P. Adamtshikovi lavastuses, R. Lundáni "Tarbetud inimesed" KOM Teatri esituses ja Rootsi Backa teatri esituses E. Östergreni "Girlpower" M. Stenbergi lavastuses

  5. BCG vaccination reduces risk of tuberculosis infection in vaccinated badgers and unvaccinated badger cubs.

    Directory of Open Access Journals (Sweden)

    Stephen P Carter

    Full Text Available Wildlife is a global source of endemic and emerging infectious diseases. The control of tuberculosis (TB in cattle in Britain and Ireland is hindered by persistent infection in wild badgers (Meles meles. Vaccination with Bacillus Calmette-Guérin (BCG has been shown to reduce the severity and progression of experimentally induced TB in captive badgers. Analysis of data from a four-year clinical field study, conducted at the social group level, suggested a similar, direct protective effect of BCG in a wild badger population. Here we present new evidence from the same study identifying both a direct beneficial effect of vaccination in individual badgers and an indirect protective effect in unvaccinated cubs. We show that intramuscular injection of BCG reduced by 76% (Odds ratio = 0.24, 95% confidence interval (CI 0.11-0.52 the risk of free-living vaccinated individuals testing positive to a diagnostic test combination to detect progressive infection. A more sensitive panel of tests for the detection of infection per se identified a reduction of 54% (Odds ratio = 0.46, 95% CI 0.26-0.88 in the risk of a positive result following vaccination. In addition, we show the risk of unvaccinated badger cubs, but not adults, testing positive to an even more sensitive panel of diagnostic tests decreased significantly as the proportion of vaccinated individuals in their social group increased (Odds ratio = 0.08, 95% CI 0.01-0.76; P = 0.03. When more than a third of their social group had been vaccinated, the risk to unvaccinated cubs was reduced by 79% (Odds ratio = 0.21, 95% CI 0.05-0.81; P = 0.02.

  6. Advances and prospects for management of TB transmission between badgers and cattle.

    Science.gov (United States)

    Wilson, Gavin J; Carter, Stephen P; Delahay, Richard J

    2011-07-01

    Bovine tuberculosis (bTB) is the most serious endemic disease facing the livestock industry in the United Kingdom (UK) and Republic of Ireland (RoI), where its management has been confounded by the presence of persistent infection in the Eurasian badger (Meles meles). Field evidence suggests that the social structure of badger populations can have an important influence on disease dynamics, and on the outcome of management interventions. Recent, large-scale badger culling experiments in the UK and RoI had complex epidemiological outcomes. In the UK, proactive culling led to reduced bTB incidence in cattle herds inside culled areas, but a temporary increase in adjacent areas. Reactive culling in response to herd breakdowns was associated with an increase in the incidence of bTB in cattle. In contrast, badger culling in RoI was reported to have only beneficial effects on bTB incidence in cattle. The reasons for these differences are not clear. The complexity of the evidence base for culling is highlighted by the different management approaches currently being adopted by the different authorities of the UK and RoI. It is generally accepted that a holistic approach to bTB management, which targets both cattle and wildlife, is necessary. Consequently recent research activities have also focussed on cattle and badger vaccines, and biosecurity on farms. This paper describes recent advances in our understanding of the epidemiology of bTB in badgers and the consequences of culling, and current research to develop approaches for the vaccination of badgers, and methods of managing the risks of contact between badgers and cattle in farm buildings.

  7. Evidence for a role of the host-specific flea (Paraceras melis in the transmission of Trypanosoma (Megatrypanum pestanai to the European badger.

    Directory of Open Access Journals (Sweden)

    Regina Lizundia

    Full Text Available We investigated the epidemiology of Trypanosoma pestanai infection in European badgers (Meles meles from Wytham Woods (Oxfordshire, UK to determine prevalence rates and to identify the arthropod vector responsible for transmission. A total of 245 badger blood samples was collected during September and November 2009 and examined by PCR using primers derived from the 18S rRNA of T. pestanai. The parasite was detected in blood from 31% of individuals tested. T. pestanai was isolated from primary cultures of Wytham badger peripheral blood mononuclear cells and propagated continually in vitro. This population was compared with cultures of two geographically distinct isolates of the parasite by amplified fragment length polymorphism (AFLP and PCR analysis of 18S rDNA and ITS1 sequences. High levels of genotypic polymorphism were observed between the isolates. PCR analysis of badger fleas (Paraceras melis collected from infected individuals at Wytham indicated the presence of T. pestanai and this was confirmed by examination of dissected specimens. Wet smears and Giemsa-stained preparations from dissected fleas revealed large numbers of trypanosome-like forms in the hindgut, some of which were undergoing binary fission. We conclude that P. melis is the primary vector of T. pestanai in European badgers.

  8. Diagnostic accuracy and optimal use of three tests for tuberculosis in live badgers.

    Directory of Open Access Journals (Sweden)

    Julian A Drewe

    Full Text Available BACKGROUND: Accurate diagnosis of tuberculosis (TB due to infection with Mycobacterium bovis is notoriously difficult in live animals, yet important if we are to understand the epidemiology of TB and devise effective strategies to limit its spread. Currently available tests for diagnosing TB in live Eurasian badgers (Meles meles remain unvalidated against a reliable gold standard. The aim of the present study was to evaluate the diagnostic accuracy and optimal use of three tests for TB in badgers in the absence of a gold standard. METHODOLOGY/PRINCIPAL FINDINGS: A Bayesian approach was used to evaluate the diagnostic accuracy and optimal use of mycobacterial culture, gamma-interferon assay and a commercially available serological test using multiple samples collected from 305 live wild badgers. Although no single test was judged to be sufficiently sensitive and specific to be used as a sole diagnostic method, selective combined use of the three tests allowed guidelines to be formulated that allow a diagnosis to be made for individual animals with an estimated overall accuracy of 93% (range: 75% to 97%. Employing this approach in the study population of badgers resulted in approximately 13 out of 14 animals having their true infection status correctly classified from samples collected on a single capture. CONCLUSIONS/SIGNIFICANCE: This method of interpretation represents a marked improvement on the current procedure for diagnosing M. bovis infection in live badgers. The results should be of use to inform future test and intervention strategies with the aim of reducing the incidence of TB in free-living wild badger populations.

  9. Impact of external sources of infection on the dynamics of bovine tuberculosis in modelled badger populations

    Directory of Open Access Journals (Sweden)

    Hardstaff Joanne L

    2012-06-01

    Full Text Available Abstract Background The persistence of bovine TB (bTB in various countries throughout the world is enhanced by the existence of wildlife hosts for the infection. In Britain and Ireland, the principal wildlife host for bTB is the badger (Meles meles. The objective of our study was to examine the dynamics of bTB in badgers in relation to both badger-derived infection from within the population and externally-derived, trickle-type, infection, such as could occur from other species or environmental sources, using a spatial stochastic simulation model. Results The presence of external sources of infection can increase mean prevalence and reduce the threshold group size for disease persistence. Above the threshold equilibrium group size of 6–8 individuals predicted by the model for bTB persistence in badgers based on internal infection alone, external sources of infection have relatively little impact on the persistence or level of disease. However, within a critical range of group sizes just below this threshold level, external infection becomes much more important in determining disease dynamics. Within this critical range, external infection increases the ratio of intra- to inter-group infections due to the greater probability of external infections entering fully-susceptible groups. The effect is to enable bTB persistence and increase bTB prevalence in badger populations which would not be able to maintain bTB based on internal infection alone. Conclusions External sources of bTB infection can contribute to the persistence of bTB in badger populations. In high-density badger populations, internal badger-derived infections occur at a sufficient rate that the additional effect of external sources in exacerbating disease is minimal. However, in lower-density populations, external sources of infection are much more important in enhancing bTB prevalence and persistence. In such circumstances, it is particularly important that control strategies to

  10. Kokku traageldatud Paabel / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2007-01-01

    Mängufilm "Paabel" ("Babel") : stsenarist Guillermo Arriaga : režissöör Alejandro Gonzalez Inarritu : peaosades Cate Blanchett, Brad Pitt, Gael Garcia Bernal : Ameerika Ühendriigid - Mehhiko, 2006

  11. Tsunami ülikooli veeklaasis / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2006-01-01

    Tallinna Ülikooli eesti filoloogia osakonnas liidetakse eesti kirjanduse ja maailmakirjanduse õppetoolid ning likvideeritakse võrdleva kirjandusteaduse õppetool. Käimasolevast restruktureerimisest ja koondamistest räägivad ajakirjanikule Toomas Liiv, Martin Ehala ja Maarja Vaino

  12. Portugalikeelse kirjanduse retseptsioon Eestis / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2011-01-01

    Portugalikeelse kirjanduse tõlgetest ja nende vastuvõtust alates esimese tõlke ilmumisest 1890. aastal kuni 2005. aastani ning retseptsiooni pärssinud teguritest. Ülevaade kahe olulisema tõlkija Aita Kurfeldti ja Ain Kaalepi tööst

  13. Demokraatliku fundamentalismi rasked päevad / Mele Pesti

    Index Scriptorium Estoniae

    Pesti, Mele, 1979-

    2006-01-01

    Autor uuris Kopenhaagenis ja Arhusis taanlaste ja Taanis elavate moslemite arusaamu Muhamedist, sõnavabadusest ja elust Taanis. Intervjuu Taani moslemite tähtsaima juhi imaam Ahmed Abu Labaniga, kes autori sõnul on nn. Muhamedi-loo rahvusvahelisele tasemele viimise taga

  14. Presence of Bartonella species in wild carnivores of northern Spain.

    Science.gov (United States)

    Gerrikagoitia, Xeider; Gil, Horacio; García-Esteban, Coral; Anda, Pedro; Juste, R A; Barral, Marta

    2012-02-01

    The genus Bartonella was detected by PCR in 5.7% (12/212) of wild carnivores from Northern Spain. Based on hybridization and sequence analyses, Bartonella henselae was identified in a wildcat (Felis silvestris), Bartonella rochalimae in a red fox (Vulpes vulpes) and in a wolf (Canis lupus), and Bartonella sp. in badgers (Meles meles).

  15. Presence of Bartonella Species in Wild Carnivores of Northern Spain

    OpenAIRE

    Gerrikagoitia, Xeider; Gil, Horacio; García-Esteban, Coral; Anda, Pedro; R.A. Juste; Barral, Marta

    2012-01-01

    The genus Bartonella was detected by PCR in 5.7% (12/212) of wild carnivores from Northern Spain. Based on hybridization and sequence analyses, Bartonella henselae was identified in a wildcat (Felis silvestris), Bartonella rochalimae in a red fox (Vulpes vulpes) and in a wolf (Canis lupus), and Bartonella sp. in badgers (Meles meles).

  16. Adhesion of human and animal escherichia coli strains in association with their virulence-associated genes and phylogenetic origins

    DEFF Research Database (Denmark)

    Fr̈mmel, Ulrike; R̈diger, Stefan; B̈hm, Alexander

    2013-01-01

    ) and the European hedgehog (Erinaceus europaeus). The prevalence of exVAGs depended on isolation from a specific host. Human uropathogenic E. coli isolates carried exVAGs with the highest prevalence, followed by badger (Meles meles) and roe deer isolates. Adhesion was found to be very diverse. Adhesion was specific...

  17. Analisi comparativa della dieta di alcuni carnivori opportunisti (Vulpes vulpes, Martes foina, Meles meles in Europa

    Directory of Open Access Journals (Sweden)

    Anna Maria De Marinis

    2003-10-01

    Full Text Available L'ecologia alimentare della volpe, del tasso ed in misura minore della faina è stata ampiamente studiata in diverse aree comprese all'interno degli areali di queste 3 specie. La variazione geografica delle abitudini alimentari di questi carnivori definiti opportunisti è al contrario decisamente poco nota. Scopo del presente lavoro è la descrizione della variazione della dieta di faina, tasso e volpe attraverso l'Europa ed in secondo luogo l'analisi comparativa delle strategie alimentari adottate da questi carnivori. Sono stati analizzati 19 studi per la volpe, 11 per la faina e 23 per il tasso. Sono stati presi in considerazione soltanto gli studi della durata di almeno un anno nei quali la composizione della dieta, determinata tramite analisi delle feci, fosse espressa in percentuale di volume o biomassa e le categorie alimentari fossero dettagliatamente descritte. Gli studi sono stati divisi in gruppi in base alla regione climatica di appartenenza (mediterranea, centroeuropea, atlantica e boreale. Le categorie alimentari utilizzate nell'analisi della variabilità geografica sono: mammiferi, uccelli, anfibi, artropodi, lombrichi, altro animale, frutta, cereali, rifiuti. L'analisi delle componenti principali, condotta separatamente sulle 3 specie, ha consentito l'individuazione su di un grafico bidimensionale di due gruppi riferibili all'Europa centro-settentrionale ed alla regione mediterranea, con una percentuale di variabilità spiegata > 76% per ognuna delle 3 specie. La composizione della dieta del primo gruppo risulta caratterizzata da elevate percentuali di mammiferi e secondariamente uccelli per la volpe, uccelli ed altro animale per la faina e lombrichi, cereali ed anfibi per il tasso. La composizione della dieta nella regione mediterranea risulta invece caratterizzata da elevate percentuali di artropodi e frutta per tutte e 3 le specie di carnivori. L'analisi dicriminante ha consentito di differenziare gli studi condotti in ambiente mediterraneo in base al consumo di mammiferi che si è rivelato elevato nella volpe, ridotto nel tasso e variabile nella faina. Viene discussa la convergenza verso una dieta insettivora e frugivora in ambiente mediterraneo da parte di 3 carnivori opportunisti.

  18. Scelta dell'habitat del tasso (Meles meles in un'area dell'Oltrepò pavese

    Directory of Open Access Journals (Sweden)

    Valentina Rigo

    2003-10-01

    Full Text Available Il presente studio è parte di una ricerca promossa dal Centro Studi Faunistica dei Vertebrati della SISN. Il progetto è iniziato nel 1999 ed è ancora in corso. L'area di studio (161 Km² si trova nella zona collinare dell'Oltrepò ed è compresa, sul reticolato cartografico UTM, tra i Km 4972 e 4960 Nord, e i Km 1505 e 1520 Est. Lo scopo principale della ricerca era di valutare l'importanza delle caratteristiche ambientali nella scelta e selezione dell'habitat del tasso, relativamente al posizionamento delle tane. Nel periodo di studio sono stati rilevati i dati ambientali su 23 punti tana (pt e 28 punti casuali (pc, successivamente inseriti in un GIS dal quale, attraverso l'analisi di carte tematiche digitalizzate, sono state ricavate diverse altre informazioni (uso del suolo, geologia, litologia, sviluppo dei corsi d'acqua, delle strade e dei centri abitati considerando aree di raggio 300 e 600 m intorno ai pt e pc. I dati raccolti sono stati oggetto d'analisi statistiche con test di confronto fra pt e pc, indice di selezione di Manly e tecniche classificatorie multivariate (regressione logistica. Le tane di tasso sono prevalentemente scavate in luoghi protetti, caratterizzati da un'elevata copertura. La differenza tra gli ambienti nei quali sono situate le tane e quelli relativi ai punti casuali si è rivelata estremamente significativa (Χ²=18.20; d.f.=1; p<0.001. L'indice di Manly indica una forte selezione per i boschi di latifoglie, quasi tutte le tane, infatti, si trovano in ambienti boschivi caratterizzati da una elevata copertura sia delle fronde degli alberi (Χ²=8.02; d.f.=2; p=0.018 che degli arbusti (Χ²=10.85; d.f.=2; p=0.004; sono invece evitati ambienti caratterizzati da un elevato sviluppo delle attività antropiche e che presentino una copertura minima o del tutto assente come campi coltivati, frutteti, zone a prato, ecc. Preferiti sono risultati i versanti esposti a sud rispetto alle altre esposizioni (Χ²=11.566; d.f.=1; p<0.001 e siti che presentino, nelle vicinanze, la presenza di castagne: risorsa trofica importante per l'animale (Χ²=6.220; d.f.=1; p=0.013. A differenza di quanto emerso in altre ricerche, il substrato geo-litologico e la distanza dai corsi d'acqua non risultano parametri statisticamente significativi, mentre un basso sviluppo delle strade, che rappresentano un disturbo ed un reale pericolo per i tassi, caratterizza i luoghi scelti per le tane. L'animale sembra prediligere, per le proprie tane, secondo quanto emerge anche dall'analisi multivariata, luoghi con un minore disturbo antropico. In conclusione, il tipo di ambiente, la copertura arborea e arbustiva, l'esposizione dei versanti, la presenza di adeguate risorse trofiche nelle vicinanze, la lontananza da strade e lo sviluppo dei centri abitati sono componenti che influenzano significativamente la presenza del tasso. Fattori geologici, litologici, e idrogeologici sono invece di scarsa importanza nell'area considerata.

  19. Development of Crenosoma vulpis in the common garden snail Cornu aspersum: implications for epidemiological studies

    OpenAIRE

    Colella, Vito; Mutafchiev, Yasen; Cavalera, Maria Alfonsa; Giannelli, Alessio; Lia, Riccardo Paolo; Filipe DANTAS-TORRES; Otranto, Domenico

    2016-01-01

    Background Crenosoma vulpis (Dujardin, 1845), the fox lungworm, is a metastrongyloid affecting the respiratory tract of red foxes (Vulpes vulpes), dogs (Canis familiaris) and badgers (Meles meles) living in Europe and North America. The scant data available on the intermediate hosts of C. vulpis, as well as the limited information about the morphology of the larvae may jeopardise epidemiological studies on this parasite. Methods Suitability and developmental time of C. vulpis in the common ga...

  20. Badger productivity, contaminant, and health study

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The U.S. Fish and Wildlife Service has prepared a proposal to conduct a badger study on the Arsenal with emphasis on contaminant exposure and reproductive affects....

  1. Badgers on the Rocky Mountain Arsenal

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Nineteen badgers (Taxidea taxus) were captured on the Rocky Mountain Arsenal (RMA) using Woodstream Softcatch traps and live snares. This represents a minimum...

  2. A New Experimental Infection Model in Ferrets Based on Aerosolised Mycobacterium bovis

    Directory of Open Access Journals (Sweden)

    Lyanne McCallan

    2011-01-01

    Full Text Available There is significant interest in developing vaccines to control bovine tuberculosis, especially in wildlife species where this disease continues to persist in reservoir species such as the European Badger (Meles meles. However, gaining access to populations of badgers (protected under UK law is problematic and not always possible. In this study, a new infection model has been developed in ferrets (Mustela furo, a species which is closely related to the badger. Groups of ferrets were infected using a Madison infection chamber and were examined postmortem for the presence of tuberculous lesions and to provide tissue samples for confirmation of Mycobacterium bovis by culture. An infectious dose was defined, that establishes infection within the lungs and associated lymph nodes with subsequent spread to the mesentery lymph nodes. This model, which emphasises respiratory tract infection, will be used to evaluate vaccines for the control of bovine tuberculosis in wildlife species.

  3. Innovative techniques for estimating illegal activities in a human-wildlife-management conflict.

    Directory of Open Access Journals (Sweden)

    Paul Cross

    Full Text Available Effective management of biological resources is contingent upon stakeholder compliance with rules. With respect to disease management, partial compliance can undermine attempts to control diseases within human and wildlife populations. Estimating non-compliance is notoriously problematic as rule-breakers may be disinclined to admit to transgressions. However, reliable estimates of rule-breaking are critical to policy design. The European badger (Meles meles is considered an important vector in the transmission and maintenance of bovine tuberculosis (bTB in cattle herds. Land managers in high bTB prevalence areas of the UK can cull badgers under license. However, badgers are also known to be killed illegally. The extent of illegal badger killing is currently unknown. Herein we report on the application of three innovative techniques (Randomized Response Technique (RRT; projective questioning (PQ; brief implicit association test (BIAT for investigating illegal badger killing by livestock farmers across Wales. RRT estimated that 10.4% of farmers killed badgers in the 12 months preceding the study. Projective questioning responses and implicit associations relate to farmers' badger killing behavior reported via RRT. Studies evaluating the efficacy of mammal vector culling and vaccination programs should incorporate estimates of non-compliance. Mitigating the conflict concerning badgers as a vector of bTB requires cross-disciplinary scientific research, departure from deep-rooted positions, and the political will to implement evidence-based management.

  4. "Reversed" intraguild predation: red fox cubs killed by pine marten.

    Science.gov (United States)

    Brzeziński, Marcin; Rodak, Lukasz; Zalewski, Andrzej

    2014-01-01

    Camera traps deployed at a badger Meles meles set in mixed pine forest in north-eastern Poland recorded interspecific killing of red fox Vulpes vulpes cubs by pine marten Martes martes. The vixen and her cubs settled in the set at the beginning of May 2013, and it was abandoned by the badgers shortly afterwards. Five fox cubs were recorded playing in front of the den each night. Ten days after the first recording of the foxes, a pine marten was filmed at the set; it arrived in the morning, made a reconnaissance and returned at night when the vixen was away from the set. The pine marten entered the den several times and killed at least two fox cubs. It was active at the set for about 2 h. This observation proves that red foxes are not completely safe from predation by smaller carnivores, even those considered to be subordinate species in interspecific competition.

  5. A restatement of the natural science evidence base relevant to the control of bovine tuberculosis in Great Britain.

    Science.gov (United States)

    Godfray, H Charles J; Donnelly, Christl A; Kao, Rowland R; Macdonald, David W; McDonald, Robbie A; Petrokofsky, Gillian; Wood, James L N; Woodroffe, Rosie; Young, Douglas B; McLean, Angela R

    2013-10-07

    Bovine tuberculosis (bTB) is a very important disease of cattle in Great Britain, where it has been increasing in incidence and geographical distribution. In addition to cattle, it infects other species of domestic and wild animals, in particular the European badger (Meles meles). Policy to control bTB is vigorously debated and contentious because of its implications for the livestock industry and because some policy options involve culling badgers, the most important wildlife reservoir. This paper describes a project to provide a succinct summary of the natural science evidence base relevant to the control of bTB, couched in terms that are as policy-neutral as possible. Each evidence statement is placed into one of four categories describing the nature of the underlying information. The evidence summary forms the appendix to this paper and an annotated bibliography is provided in the electronic supplementary material.

  6. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Phytoflash

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Phytoflash. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that...

  7. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, CTD

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, CTD. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  8. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, AIS

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, AIS. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  9. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Telemetry

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Telemetry. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops...

  10. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Weather

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Weather. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops...

  11. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, MOSE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, MOSE. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  12. Epidemiological study on the Trichinellosis of the fox (Vulpes vulpes in Tuscany (Central Italy

    Directory of Open Access Journals (Sweden)

    Marta Magi

    2008-07-01

    Full Text Available Abstract During the years 2004-2005, 112 foxes (Vulpes vulpes and 4 badgers (Meles meles were caught in different areas of Tuscany (Central Italy and examined for Trichinella infection, using the diagnostic technique of artificial digestion through Stomacher. No animal was positive for Trichinella larvae. According to our results, Tuscany can be considered a low-risk area for trichinellosis in the fox. In this region the presence of the parasite cannot be ruled out, two cases of infection being reported in 1993. Riassunto Epidemiologia della trichinellosi della volpe (Vulpes vulpes in Toscana (Italia centrale. Nel corso degli anni 2004-2005, 112 volpi (Vulpes vulpes e 4 tassi (Meles meles sono stati catturati ed esaminati per la presenza di infestione da Trichinella in differenti aree della Toscana (Italia centrale. L'indagine di laboratorio è stata condotta mediante digestione artificiale tramite Stomacher. Nessun animale è risultato positivo. Da questi risultati si può ritenere la Toscana una regione a basso rischio di infezione. La presenza del parassita non può però essere esclusa totalmente. Infatti, nel 1993 sono stati riportati due casi di infestione.

  13. Trial design to estimate the effect of vaccination on tuberculosis incidence in badgers

    NARCIS (Netherlands)

    Aznar, I.; McGrath, G.; Murphy, D.; Corner, L.A.L.; Gormley, E.; Frankena, K.; More, S.J.; Martin, W.; O'Keeffe, J.; Jong, de M.C.M.

    2011-01-01

    The principal wildlife reservoir of Mycobacterium bovis in Ireland is the European badger. Studies in the Republic of Ireland (RoI) have shown that badgers culled in association with cattle herd tuberculosis breakdowns (focal culling) have a higher prevalence of infection than the badger population

  14. Badger Army Ammunition Plant groundwater data management system

    Energy Technology Data Exchange (ETDEWEB)

    Hansen, J.P. [Olin Corp., Baraboo, WI (United States). Badger Army Ammunition Plant

    1994-12-31

    At the Badger Army Ammunition Plant (Badger), there are currently over 200 wells that are monitored on a quarterly basis. Badger has had three active production periods since its construction in 1942. During these periods, various nitrocellulose based propellants were produced including single base artillery propellants were produced including single base artillery propellant, double base rocket propellant and BALL POWDER{reg_sign} propellant. Intermediate materials used in the manufacture of these propellants were also produced, including nitroglycerine, and sulfuric and nitric acids. To meet the challenge of managing the data in-house, a groundwater data management system (GDMS) was developed. Although such systems are commercially available, they were not able to provide the specific capabilities necessary for data management and reporting at Badger. The GDMS not only provides the routine database capabilities of data sorts and queries, but has provided an automated data reporting system as well. The reporting function alone has significantly reduced the time and efforts that would normally be associated with this task. Since the GDMS was developed at Badger, the program can be continually adapted to site specific needs. Future planned modifications include automated reconciliation, improved transfer of data to graphics software, and statistical analysis and interpretation of the data.

  15. Mathematical model for transmission of tuberculosis in badger population with vaccination

    Science.gov (United States)

    Tasmi, Aldila, D.; Soewono, E.; Nuraini, N.

    2016-04-01

    Badger was first time identified as a carrier of Bovine tuberculosis disease in England since 30 years ago. Bovine tuberculosis can be transmitted to another species through the faces, saliva, and breath. The control of tuberculosis in the badger is necessary to reduce the spread of the disease to other species. Many actions have been taken by the government to tackle the disease such as culling badgers with cyanide gas, but this way destroys the natural balance and disrupts the badger population. An alternative way to eliminate tuberculosis within badger population is by vaccination. Here in this paper a model for transmission of badger tuberculosis with vaccination is discussed. The existence of the endemic equilibrium, the stability and the basic reproduction ratio are shown analytically. Numerical simulations show that with proper vaccination level, the basic reproduction ratio could be reduced significantly. Sensitivity analysis for variation of parameters are shown numerically.

  16. Oral vaccination of guinea pigs with a Mycobacterium bovis bacillus Calmette-Guerin vaccine in a lipid matrix protects against aerosol infection with virulent M. bovis.

    Science.gov (United States)

    Clark, Simon; Cross, Martin L; Nadian, Allan; Vipond, Julia; Court, Pinar; Williams, Ann; Hewinson, R Glyn; Aldwell, Frank E; Chambers, Mark A

    2008-08-01

    Increased incidence of bovine tuberculosis (TB) in the United Kingdom caused by infection with Mycobacterium bovis is a cause of considerable economic loss to farmers and the government. The Eurasian badger (Meles meles) represents a wildlife source of recurrent M. bovis infections of cattle in the United Kingdom, and its vaccination against TB with M. bovis bacillus Calmette-Guérin (BCG) is an attractive disease control option. Delivery of BCG in oral bait holds the best prospect for vaccinating badgers over a wide geographical area. Using a guinea pig pulmonary challenge model, we evaluated the protective efficacy of candidate badger oral vaccines, based on broth-grown or ball-milled BCG, delivered either as aqueous suspensions or formulated in two lipids with differing fatty acid profiles (one being animal derived and the other being vegetable derived). Protection was determined in terms of increasing body weight after aerosol challenge with virulent M. bovis, reduced dissemination of M. bovis to the spleen, and, in the case of one oral formulation, restricted growth of M. bovis in the lungs. Only oral BCG formulated in lipid gave significant protection. These data point to the potential of the BCG-lipid formulation for further development as a tool for controlling tuberculosis in badgers.

  17. Mårhundens (Nyctereutes procyonoides) føde og fødeoverlap med hjemmehørende rovdyr i Danmark

    DEFF Research Database (Denmark)

    Mikkelsen, Dorthe Malene Götz; Nørgaard, Louise Solveig; Jensen, Trine Hammer

    2016-01-01

    .37 and 0.30, respectively). Percentage food overlap between raccoon dog and badger was higher (70%) than food overlap with red fox (45%). The study suggests that birds’ eggs and nestlings is a rare food for raccoon dogs as also observed in most other European dietary studies of raccoon dogs. To determine......The raccoon dog (Nyctereutes procyonoides) is an omnivorous carnivore from East Asia, which has been introduced in Europe. It has recently established a free-ranging population in Denmark. The dietary habits of this non-native species were examined and compared to the diet of native badger (Meles....../berries (34% FO) and amphibians (44% FO). The importance of amphibians and fruits/berries varied according to seasonal availability, peaking during spring-summer and summer-autumn, respectively. The raccoon dogs’ food niche was wider than the food niche of badgers and red fox (Levin’s standard index: 0.68, 0...

  18. Spatial Targeting for Bovine Tuberculosis Control: Can the Locations of Infected Cattle Be Used to Find Infected Badgers?

    Science.gov (United States)

    Smith, Catherine M; Downs, Sara H; Mitchell, Andy; Hayward, Andrew C; Fry, Hannah; Le Comber, Steven C

    2015-01-01

    Bovine tuberculosis is a disease of historical importance to human health in the UK that remains a major animal health and economic issue. Control of the disease in cattle is complicated by the presence of a reservoir species, the Eurasian badger. In spite of uncertainty in the degree to which cattle disease results from transmission from badgers, and opposition from environmental groups, culling of badgers has been licenced in two large areas in England. Methods to limit culls to smaller areas that target badgers infected with TB whilst minimising the number of uninfected badgers culled is therefore of considerable interest. Here, we use historical data from a large-scale field trial of badger culling to assess two alternative hypothetical methods of targeting TB-infected badgers based on the distribution of cattle TB incidents: (i) a simple circular 'ring cull'; and (ii) geographic profiling, a novel technique for spatial targeting of infectious disease control that predicts the locations of sources of infection based on the distribution of linked cases. Our results showed that both methods required coverage of very large areas to ensure a substantial proportion of infected badgers were removed, and would result in many uninfected badgers being culled. Geographic profiling, which accounts for clustering of infections in badger and cattle populations, produced a small but non-significant increase in the proportion of setts with TB-infected compared to uninfected badgers included in a cull. It also provided no overall improvement at targeting setts with infected badgers compared to the ring cull. Cattle TB incidents in this study were therefore insufficiently clustered around TB-infected badger setts to design an efficient spatially targeted cull; and this analysis provided no evidence to support a move towards spatially targeted badger culling policies for bovine TB control.

  19. Angiostrongylus species in wild carnivores in the Iberian Peninsula.

    Science.gov (United States)

    Gerrikagoitia, X; Barral, M; Juste, R A

    2010-11-24

    A survey of Angiostrongylus parasites was carried out between 2003 and 2006 in wild carnivore species in the Basque Country (Northern Spain). Parasitological examination consisted in the dissection of heart and lungs for the extraction of adult worms. Nematodes were identified using morphometrical features and also PCR amplification and sequencing analysis. The animal species included in this study were Eurasian badger (Meles meles), Weasel (Mustela nivalis), Beech marten (Martes foina), Pine marten (Martes martes), Polecat (Mustela putorius), American mink (Mustela vison), Red fox (Vulpes vulpes), Wolf (Canis lupus), Wild cat (Felis silvestris), and Small-spotted genet (Genetta genetta). Angiostrongylus parasites were only found in foxes and badgers at prevalences of 33.3% and 24%, respectively. Identification of the nematodes by morphometrical features revealed that foxes were infected with A. vasorum while badgers were infected by a different species of Angiostrongylus most likely A. daskalovi. Sequencing data of the second internal transcribed spacer region of ribosomal DNA (ITS2) of isolates from each species confirmed the species difference. The high prevalence of Angiostrongylus found in the present survey, indicates that the wild cycle of two different species of Angiostrongylus is present in the Basque Country. To our knowledge this is the first report of A. daskalovi in the Iberian Peninsula.

  20. Research proposal : ecology of coyotes and badgers on the Rocky Mountain Arsenal

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Proposal for a masters research project on badgers and coyotes at the Rocky Mountain Arsenal (RMA). The primary objective of this research is to gain more...

  1. Trial design to estimate the effect of vaccination on tuberculosis incidence in badgers.

    Science.gov (United States)

    Aznar, Inma; McGrath, Guy; Murphy, Denise; Corner, Leigh A L; Gormley, Eamonn; Frankena, Klaas; More, Simon J; Martin, Wayne; O'Keeffe, James; De Jong, Mart C M

    2011-07-05

    The principal wildlife reservoir of Mycobacterium bovis in Ireland is the European badger. Studies in the Republic of Ireland (RoI) have shown that badgers culled in association with cattle herd tuberculosis breakdowns (focal culling) have a higher prevalence of infection than the badger population at large. This observation is one rationale for the medium term national strategy of focal badger culling. A vaccination strategy for the control of bovine tuberculosis (bTB) in badgers is a preferred long-term option. The Bacillus Calmette-Guérin (BCG) vaccine has been shown to decrease disease severity in captive badgers under controlled conditions. As the vaccine has been tested in a controlled environment with precise information on infection pressure, it cannot be assumed a priori that the effects of vaccination are similar in the wild, where other environmental and/or ecological factors prevail. For this reason we have designed a vaccine field trial to assess the impact of vaccination on the incidence of TB infection in a wild badger population. The selected study area for the vaccine trial (approximately 755 square kilometers) is divided into three zones each of which has similar characteristics in terms of size, number of main badger setts, cattle herds, cattle and land classification type. Three vaccination levels (100%, 50% and 0%) will be allocated to the three zones in a way that a gradient of vaccination coverage North to South is achieved. The middle zone (zone B) will be vaccinated at a 50% coverage but zone A and C will be randomly allocated with 100% or 0% vaccination coverage. Vaccination within zone B will be done randomly at individual badger level. The objective of this paper is to describe the design of a field tuberculosis vaccination trial for badgers, the epidemiological methods that were used to design the trial and the subsequent data analysis. The analysis will enable us to quantify the magnitude of the observed vaccination effect on M. bovis

  2. Farmer attitudes to vaccination and culling of badgers in controlling bovine tuberculosis.

    Science.gov (United States)

    Warren, M; Lobley, M; Winter, M

    2013-07-13

    Controversy persists in England, Wales and Northern Ireland concerning methods of controlling the transmission of bovine tuberculosis (bTB) between badgers and cattle. The National Trust, a major land-owning heritage organisation, in 2011, began a programme of vaccinating badgers against bTB on its Killerton Estate in Devon. Most of the estate is farmed by 18 tenant farmers, who thus have a strong interest in the Trust's approach, particularly as all have felt the effects of the disease. This article reports on a study of the attitudes to vaccination of badgers and to the alternative of a culling programme, using face-to-face interviews with 14 of the tenants. The results indicated first that the views of the respondents were more nuanced than the contemporary public debate about badger control would suggest. Secondly, the attitude of the interviewees to vaccination of badgers against bTB was generally one of resigned acceptance. Thirdly, most respondents would prefer a combination of an effective vaccination programme with an effective culling programme, the latter reducing population of density sufficiently (and preferably targeting the badgers most likely to be diseased) for vaccination to have a reasonable chance of success. While based on a small sample, these results will contribute to the vigorous debate concerning contrasting policy approaches to bTB control in England, Wales and Northern Ireland.

  3. Eliminating bovine tuberculosis in cattle and badgers: insight from a dynamic model.

    Science.gov (United States)

    Brooks-Pollock, Ellen; Wood, James L N

    2015-06-01

    Bovine tuberculosis (BTB) is a multi-species infection that commonly affects cattle and badgers in Great Britain. Despite years of study, the impact of badgers on BTB incidence in cattle is poorly understood. Using a two-host transmission model of BTB in cattle and badgers, we find that published data and parameter estimates are most consistent with a system at the threshold of control. The most consistent explanation for data obtained from cattle and badger populations includes within-host reproduction numbers close to 1 and between-host reproduction numbers of approximately 0.05. In terms of controlling infection in cattle, reducing cattle-to-cattle transmission is essential. In some regions, even large reductions in badger prevalence can have a modest impact on cattle infection and a multi-stranded approach is necessary that also targets badger-to-cattle transmission directly. The new perspective highlighted by this two-host approach provides insight into the control of BTB in Great Britain.

  4. Assessment of different formulations of oral Mycobacterium bovis Bacille Calmette-Guérin (BCG) vaccine in rodent models for immunogenicity and protection against aerosol challenge with M. bovis.

    Science.gov (United States)

    Clark, Simon; Cross, Martin L; Smith, Alan; Court, Pinar; Vipond, Julia; Nadian, Allan; Hewinson, R Glyn; Batchelor, Hannah K; Perrie, Yvonne; Williams, Ann; Aldwell, Frank E; Chambers, Mark A

    2008-10-29

    Bovine tuberculosis (bTB) caused by infection with Mycobacterium bovis is causing considerable economic loss to farmers and Government in the United Kingdom as its incidence is increasing. Efforts to control bTB in the UK are hampered by the infection in Eurasian badgers (Meles meles) that represent a wildlife reservoir and source of recurrent M. bovis exposure to cattle. Vaccination of badgers with the human TB vaccine, M. bovis Bacille Calmette-Guérin (BCG), in oral bait represents a possible disease control tool and holds the best prospect for reaching badger populations over a wide geographical area. Using mouse and guinea pig models, we evaluated the immunogenicity and protective efficacy, respectively, of candidate badger oral vaccines based on formulation of BCG in lipid matrix, alginate beads, or a novel microcapsular hybrid of both lipid and alginate. Two different oral doses of BCG were evaluated in each formulation for their protective efficacy in guinea pigs, while a single dose was evaluated in mice. In mice, significant immune responses (based on lymphocyte proliferation and expression of IFN-gamma) were only seen with the lipid matrix and the lipid in alginate microcapsular formulation, corresponding to the isolation of viable BCG from alimentary tract lymph nodes. In guinea pigs, only BCG formulated in lipid matrix conferred protection to the spleen and lungs following aerosol route challenge with M. bovis. Protection was seen with delivery doses in the range 10(6)-10(7) CFU, although this was more consistent in the spleen at the higher dose. No protection in terms of organ CFU was seen with BCG administered in alginate beads or in lipid in alginate microcapsules, although 10(7) in the latter formulation conferred protection in terms of increasing body weight after challenge and a smaller lung to body weight ratio at necropsy. These results highlight the potential for lipid, rather than alginate, -based vaccine formulations as suitable delivery

  5. Ferret badger rabies origin and its revisited importance as potential source of rabies transmission in Southeast China

    Directory of Open Access Journals (Sweden)

    Liu Ye

    2010-08-01

    Full Text Available Abstract Background The frequent occurrence of ferret badger-associated human rabies cases in southeast China highlights the lack of laboratory-based surveillance and urges revisiting the potential importance of this animal in rabies transmission. To determine if the ferret badgers actually contribute to human and dog rabies cases, and the possible origin of the ferret badger-associated rabies in the region, an active rabies survey was conducted to determine the frequency of rabies infection and seroprevalence in dogs and ferret badgers. Methods A retrospective survey on rabies epidemics was performed in Zhejiang, Jiangxi and Anhui provinces in southeast China. The brain tissues from ferret badgers and dogs were assayed by fluorescent antibody test. Rabies virus was isolated and sequenced for phylogenetic analysis. The sera from ferret badgers and dogs were titrated using rabies virus neutralizing antibodies (VNA test. Results The ferret badgers presented a higher percentage of rabies seroconversion than dogs did in the endemic region, reaching a maximum of 95% in the collected samples. Nine ferret badger-associated rabies viruses were isolated, sequenced, and were phylogenetically clustered as a separate group. Nucleotide sequence revealed 99.4-99.8% homology within the ferret badger isolates, and 83-89% homology to the dog isolates in the nucleoprotein and glycoprotein genes in the same rabies endemic regions. Conclusions Our data suggest ferret badger-associated rabies has likely formed as an independent enzootic originating from dogs during the long-term rabies infestation in southeast China. The eventual role of FB rabies in public health remains unclear. However, management of ferret badger bites, rabies awareness and control in the related regions should be an immediate need.

  6. 75 FR 21663 - Maysteel, LLC Including On-Site Leased Workers From Staff One, Badger Tech, Boyd Hunter, Seek...

    Science.gov (United States)

    2010-04-26

    ... Tech, Boyd Hunter, Seek, QPS, and Service First, Menomonee Falls, WI; Amended Certification Regarding..., including on-site leased workers from Staff One, Badger Tech, Boyd Hunter, Seek, and QPS, Menomonee Falls... Maysteel, LLC, including on-site leased workers from Staff One, Badger Tech, Boyd Hunter, Seek, QPS,...

  7. Aboveground predation by an American badger (Taxidea taxus) on black-tailed prairie dogs (Cynomys ludovicianus)

    Science.gov (United States)

    Eads, D.A.; Biggins, D.E.

    2008-01-01

    During research on black-tailed prairie dogs (Cynomys ludovicianus), we repeatedly observed a female American badger (Taxidea taxus) hunting prairie dogs on a colony in southern Phillips County, Montana. During 1-14 June 2006, we observed 7 aboveground attacks (2 successful) and 3 successful excavations of prairie dogs. The locations and circumstances of aboveground attacks suggested that the badger improved her probability of capturing prairie dogs by planning the aboveground attacks based on perceptions of speeds, angles, distances, and predicted escape responses of prey. Our observations add to previous reports on the complex and varied predatory methods and cognitive capacities of badgers. These observations also underscore the individuality of predators and support the concept that predators are active participants in predator-prey interactions.

  8. Detection of Neospora caninum in wild carnivorans in Great Britain.

    Science.gov (United States)

    Bartley, P M; Wright, S E; Zimmer, I A; Roy, S; Kitchener, A C; Meredith, A; Innes, E A; Katzer, F

    2013-02-18

    Samples of brain and other tissues were collected from 99 ferrets (Mustela furo), 83 red foxes (Vulpes vulpes), 70 European polecats (Mustela putorius), 65 American mink (Neovison vison), 64 Eurasian badgers (Meles meles) and 9 stoats (Mustela erminea), from around Great Britain. DNA was extracted from approximately 1g of tissue and tested by specific nested ITS1 PCR for Neospora caninum. The results from the PCR demonstrated that Neospora specific DNA was detected in all species of wild carnivorans with the exception of the stoats (0/9). Neospora DNA positive samples were detected in: polecats 18.6% (13/70), badgers 10.9% (7/64), ferrets 10.1% (10/99), foxes 4.8% (4/83) and mink 4.6% (3/65). In the badgers N. caninum DNA positive samples were found in brain (n=2), liver (n=2) and neck muscle (n=3). Selected positive ITS1 DNA sequences were submitted to Genbank. Sequence UKwildlife1 (accession number JX857862) was found in two badgers, whilst UKwildlife2 and UKwildlife3 (accession numbers JX857863 and JX857864 respectively) were found in ferrets, all three sequences demonstrated point mutations at a single base, while sequence UKwildlife4 (accession number JX857865) was found in all the species that tested positive and showed complete identity when compared against published reference sequences for: N. caninum (Nc Liverpool isolate, EU564166). Our data shows that almost all the wild carnivoran mammal species tested are intermediate hosts for N. caninum and are therefore capable of acting as reservoirs of infection for other species. These species could also act as useful sentinel species, demonstrating the presence of the parasite in particular geographical and environmental locations.

  9. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, C3

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, C3. C3 board number 8215 (not coated) appears as board_id=32, task_id=23. C3 board number 771 (coated) appears...

  10. Estimating the power of a Mycobacterium bovis vaccine trial in Irish badgers.

    Science.gov (United States)

    Aznar, I; More, S J; Frankena, K; De Jong, M C M

    2013-09-01

    The aim of this study was to estimate the power, using simulation techniques, of a group randomized vaccine field trial designed to assess the effect of vaccination on Mycobacterium bovis transmission in badgers. The effects of sample size (recapture percentage), initial prevalence, sensitivity and specificity of the diagnostic test, transmission rate between unvaccinated badgers, Vaccine Efficacy for Susceptibility (VES) and Vaccine Efficacy for Infectiousness (VEI), on study power were determined. Sample size had a small effect on power. Study power increased with increasing transmission rate between non-vaccinated badgers. Changes in VES had a higher impact on power than changes in VEI. However, the largest effect on study power was associated with changes in the specificity of the diagnostic test, within the range of input values that were used for all other modelled parameters. Specificity values below 99.4% yielded a study power below 50% even when sensitivity was 100% and, VEI and VES were both equal to 80%. The effect of changes in sensitivity on study power was much lower. The results from our study are in line with previous studies, as study power was dependent not only on sample size but on many other variables. In this study, additional variables were studied, i.e. test sensitivity and specificity. In the current vaccine trial, power was highly dependent on the specificity of the diagnostic test. Therefore, it is critical that the diagnostic test used in the badger vaccine trial is optimized to maximize test specificity.

  11. 75 FR 39667 - Availability for Non-Exclusive or Partially Exclusive Licensing of a U.S. Patent Application

    Science.gov (United States)

    2010-07-12

    ... for preparing multivalent vaccines, recombinant DNA expression ] products and more particularly to..., Dr. Paul Mele, Office of Research and Technology Applications (ORTA), (301) 619- 6664, both...

  12. Immunohistochemistry of parasitic subepidermal vesiculobullous disease in American badgers (Taxidea taxus).

    Science.gov (United States)

    O'Toole, D; Welch, V; Williams, B

    1994-01-01

    Some populations of free-ranging American badgers (Taxidea taxus) develop a distinctive seasonal dermatitis due to the subcutaneous filariid Filaria taxideae. Subepidermal vesicles that contain filarial ova develop in thinly haired skin of the inguinal area, proximal thigh, and ventral abdomen. The purpose of this study was to establish by immunohistochemistry whether basement membrane components colocalized with the roof or floor of vesicles and to confirm that filarial ova occur in intradermal vessels. Samples of skin with characteristic F. taxideae-induced subepidermal vesicles were collected from 10 adult male (n = 8) and female (n = 2) badgers. Samples were fixed in formalin for 1-4 days and processed routinely into paraffin wax. Immunohistochemical staining for basement membrane was attempted with anti-collagen IV antibodies (AM168-5M, AR079-5R, AB748) and antilaminin antibodies (MA078-5C, AR078-5R, L-9393). Optimal results in skin from badgers were obtained using a biotin-streptavidin technique and AR079-5R (anti-human collagen IV) and AR078-5R (anti-murine laminin). There was positive staining of the floor of vesicles in 5 of 6 badgers tested with antibodies to laminin and collagen IV. In 5/10 badgers, filarial ova and first stage F. taxideae larvae were found in dilated vascular channels of the upper dermis, and these vessels stained positively for factor VIII-related antigen. The results suggest that F. taxideae-induced subepidermal separation occurs consistently in the lamina lucida portion of the basal lamina and that filarial ova occur in dermal vessels.

  13. Epidemic and Maintenance of Rabies in Chinese Ferret Badgers (Melogale moschata) indicated by Epidemiology and the Molecular Signatures of Rabies Viruses

    Institute of Scientific and Technical Information of China (English)

    Shoufeng Zhang; Ye Liu; Yanli Hou; Jinghui Zhao; Fei Zhang; Ying Wang; Rongliang Hu

    2013-01-01

    An epidemic of Chinese ferret badger-associated human rabies was investigated in Wuyuan county,Jiangxi province and rabies viruses isolates from ferret badgers in different districts in Jiangxi and Zhejiang provinces were sequenced with their nucleotides and amino acids and aligned for epidemiological analysis.The results showed that the human rabies in Wuyuan are only associated with ferret badger bites; the rabies virus can be isolated in a high percentage of ferret badgers in the epidemic areas in Jiangxi and Zhejiang provinces; the isolates share the same molecular features in nucleotides and have characteristic amino acid signatures,i.e.,2 sites in the nucleoprotein and 3 sites in the glycoprotein,that are distinct from virus isolates from dogs in the same region.We conclude that rabies in Chinese ferret badgers has formed an independent transmission cycle and ferret badgers may serve as another important rabies reservoir independent of dog rabies in China.

  14. Optimising and evaluating the characteristics of a multiple antigen ELISA for detection of Mycobacterium bovis infection in a badger vaccine field trial.

    Science.gov (United States)

    Aznar, Inma; Frankena, Klaas; More, Simon J; Whelan, Clare; Martin, Wayne; Gormley, Eamonn; Corner, Leigh A L; Murphy, Denise; De Jong, Mart C M

    2014-01-01

    A long-term research programme has been underway in Ireland to evaluate the usefulness of badger vaccination as part of the national bTB (bovine tuberculosis) control strategy. This culminated in a field trial which commenced in county Kilkenny in 2009 to determine the effects of badger vaccination on Mycobacterium bovis transmission in badgers under field conditions. In the present study, we sought to optimise the characteristics of a multiplex chemiluminescent assay for detection of M. bovis infection in live badgers. Our goal was to maximise specificity, and therefore statistical power, during evaluation of the badger vaccine trial data. In addition, we also aimed to explore the effects of vaccination on test characteristics. For the test optimisation, we ran a stepwise logistic regression with analytical weights on the converted Relative Light Units (RLU) obtained from testing blood samples from 215 badgers captured as part of culling operations by the national Department of Agriculture, Food and the Marine (DAFM). The optimised test was applied to two other datasets obtained from two captive badger studies (Study 1 and Study 2), and the sensitivity and specificity of the test was attained separately for vaccinated and non-vaccinated badgers. During optimisation, test sensitivity was maximised (30.77%), while retaining specificity at 99.99%. When the optimised test was then applied to the captive badger studies data, we observed that test characteristics did not vary greatly between vaccinated and non-vaccinated badgers. However, a different time lag between infection and a positive test result was observed in vaccinated and non-vaccinated badgers. We propose that the optimized multiplex immunoassay be used to analyse the vaccine trial data. In relation to the difference in the time lag observed for vaccinated and non-vaccinated badgers, we also present a strategy to enable the test to be used during trial evaluation.

  15. Optimising and evaluating the characteristics of a multiple antigen ELISA for detection of Mycobacterium bovis infection in a badger vaccine field trial.

    Directory of Open Access Journals (Sweden)

    Inma Aznar

    Full Text Available A long-term research programme has been underway in Ireland to evaluate the usefulness of badger vaccination as part of the national bTB (bovine tuberculosis control strategy. This culminated in a field trial which commenced in county Kilkenny in 2009 to determine the effects of badger vaccination on Mycobacterium bovis transmission in badgers under field conditions. In the present study, we sought to optimise the characteristics of a multiplex chemiluminescent assay for detection of M. bovis infection in live badgers. Our goal was to maximise specificity, and therefore statistical power, during evaluation of the badger vaccine trial data. In addition, we also aimed to explore the effects of vaccination on test characteristics. For the test optimisation, we ran a stepwise logistic regression with analytical weights on the converted Relative Light Units (RLU obtained from testing blood samples from 215 badgers captured as part of culling operations by the national Department of Agriculture, Food and the Marine (DAFM. The optimised test was applied to two other datasets obtained from two captive badger studies (Study 1 and Study 2, and the sensitivity and specificity of the test was attained separately for vaccinated and non-vaccinated badgers. During optimisation, test sensitivity was maximised (30.77%, while retaining specificity at 99.99%. When the optimised test was then applied to the captive badger studies data, we observed that test characteristics did not vary greatly between vaccinated and non-vaccinated badgers. However, a different time lag between infection and a positive test result was observed in vaccinated and non-vaccinated badgers. We propose that the optimized multiplex immunoassay be used to analyse the vaccine trial data. In relation to the difference in the time lag observed for vaccinated and non-vaccinated badgers, we also present a strategy to enable the test to be used during trial evaluation.

  16. Isolation and phylogenetic analysis of Bartonella species from wild carnivores of the suborder Caniformia in Japan.

    Science.gov (United States)

    Sato, Shingo; Kabeya, Hidenori; Miura, Tatsuya; Suzuki, Kazuo; Bai, Ying; Kosoy, Michael; Sentsui, Hiroshi; Kariwa, Hiroaki; Maruyama, Soichi

    2012-12-28

    The prevalence of Bartonella species was investigated among wild carnivores of the suborder Caniformia, including 15 Japanese badgers (Meles anakuma), 8 Japanese martens (Martes melampus), 2 Japanese weasels (Mustela itatsi), 1 Siberian weasel (Mustela sibirica), 171 raccoon dogs (Nyctereutes procyonoides), and 977 raccoons (Procyon lotor) in Japan. Bartonella bacteria were isolated from one Japanese badger (6.7%) and from one Japanese marten (12.5%); however, no Bartonella species was found in other representatives of Caniformia. Phylogenetic analysis was based on concatenated sequences of six housekeeping genes (16S rRNA, ftsZ, gltA, groEL, ribC, and rpoB) and sequence of the 16S-23S internal transcribed spacer region. The sequence analysis indicated that the isolate derived from the Japanese badger (strain JB-15) can represent a novel Bartonella species and the isolate from the Japanese marten (strain JM-1) was closely related to Bartonella washoensis. This is the first report on isolation of Bartonella from badger and marten.

  17. Herd-level risk factors for bovine tuberculosis and adoption of related biosecurity measures in Northern Ireland: A case-control study.

    Science.gov (United States)

    O'Hagan, M J H; Matthews, D I; Laird, C; McDowell, S W J

    2016-07-01

    Bovine tuberculosis (bTB) is a zoonotic disease which is endemic in Northern Ireland. As it has proven difficult to eradicate this disease, partly due to a wildlife reservoir being present in the European badger (Meles meles), a case-control study was conducted in a high incidence area in 2010-2011. The aim was to identify risk factors for bTB breakdown relating to cattle and badgers, and to assess the adoption of bTB related biosecurity measures on farms. Face-to-face questionnaires with farmers and surveys of badger setts and farm boundaries were conducted on 117 farms with a recent bTB breakdown (cases) and 75 farms without a recent breakdown (controls). On logistic regression at univariable and multivariable levels, significant risk factors associated with being a case herd included having an accessible badger sett within the farm boundaries in a field grazed in the last year (odds ratio, OR, 4.14; 95% confidence interval, CI, 1.79, 9.55), observation of live badgers (OR 4.14; 95% CI 1.79, 9.55), purchase of beef cattle (OR 4.60; 95% CI 1.61, 13.13), use of contractors to spread slurry (OR 2.83; 95% CI 1.24, 6.49), feeding meal on top of silage (OR 3.55; 95% CI 1.53, 8.23) and feeding magnesium supplement (OR = 3.77; 95% CI 1.39, 10.17). The majority of setts within the farm boundary were stated to be accessible by cattle (77.1%; 95% CI 71.2, 83.0%) and 66.8% (95% CI 63.8, 69.7%) of farm boundaries provided opportunities for nose-to-nose contact between cattle. Adoption of bTB related biosecurity measures, especially with regards to purchasing cattle and badger-related measures, was lower than measures related to disinfection and washing.

  18. Instability in the Horn of Africa: An Assessment of Ethiopian-Eritrean Conflict

    Science.gov (United States)

    2010-09-01

    Carter, who met Meles Zenawi in 1989, remembers: When I used to meet Meles during my visits to the region, he would spread his war maps on the floor ...having taken low- paying jobs in Eritrea as casual laborers, domestic servants, woodcutters, potters, housemaids, waitresses , and even as prostitutes

  19. Design of Mobile Enhanced Learning Environment on English Language Learning

    Institute of Scientific and Technical Information of China (English)

    陈文辉

    2014-01-01

    Information and Communication Technology (ICT)has brought about a totally new way of learning,that is mobile -enhanced learning environments (MELE),and it might even take the place of the traditional class teaching.The study’s objective is to measure the impact of mobile -enhanced learning environment (MELE)on English language writing.

  20. Discovery and complete genome sequence of a novel circovirus-like virus in the endangered rowi kiwi, Apteryx rowi.

    Science.gov (United States)

    White, Daniel J; Hall, Richard J; Wang, Jing; Moore, Nicole E; Park, Duckchul; McInnes, Kate; Gartrell, Brett D; Tompkins, Daniel M

    2016-10-01

    Circoviruses are circular, non-enveloped, single-stranded DNA viruses around 2000 nucleotides (nt) in length and include the pathogenic species, Porcine circovirus 1 and Beak and feather disease virus, capable of causing significant morbidity and mortality. This group of viruses may be robust to degradation by external environments, and avian circoviruses are known to move between closely related hosts. Using a de novo metagenomic approach, followed by confirmatory PCR, we identify for the first time a circular Rep-encoding single-stranded (CRESS) DNA virus in New Zealand kiwi, Apteryx spp., derived from faecal matter of the rowi kiwi (A. rowi) showing signs of verminous dermatitis. The entire 2085 nt genome was cloned and sequenced and contains both capsid and replicase genes, as well as a conserved 9 nt motif. Phylogenetic analyses place it within Circoviridae, adjacent to other environmental CRESS-DNA viruses, and most closely related to badger circovirus-like virus (Meles meles circovirus-like virus). As the rowi is the most critically endangered kiwi, it is vital to understand the role of rowi kiwi circovirus-like virus as a possible pathogen and also any potential cross-species transmission.

  1. Emergence of canine distemper virus strains with modified molecular signature and enhanced neuronal tropism leading to high mortality in wild carnivores.

    Science.gov (United States)

    Origgi, F C; Plattet, P; Sattler, U; Robert, N; Casaubon, J; Mavrot, F; Pewsner, M; Wu, N; Giovannini, S; Oevermann, A; Stoffel, M H; Gaschen, V; Segner, H; Ryser-Degiorgis, M-P

    2012-11-01

    An ongoing canine distemper epidemic was first detected in Switzerland in the spring of 2009. Compared to previous local canine distemper outbreaks, it was characterized by unusually high morbidity and mortality, rapid spread over the country, and susceptibility of several wild carnivore species. Here, the authors describe the associated pathologic changes and phylogenetic and biological features of a multiple highly virulent canine distemper virus (CDV) strain detected in and/or isolated from red foxes (Vulpes vulpes), Eurasian badgers (Meles meles), stone (Martes foina) and pine (Martes martes) martens, from a Eurasian lynx (Lynx lynx), and a domestic dog. The main lesions included interstitial to bronchointerstitial pneumonia and meningopolioencephalitis, whereas demyelination--the classic presentation of CDV infection--was observed in few cases only. In the brain lesions, viral inclusions were mainly in the nuclei of the neurons. Some significant differences in brain and lung lesions were observed between foxes and mustelids. Swiss CDV isolates shared together with a Hungarian CDV strain detected in 2004. In vitro analysis of the hemagglutinin protein from one of the Swiss CDV strains revealed functional and structural differences from that of the reference strain A75/17, with the Swiss strain showing increased surface expression and binding efficiency to the signaling lymphocyte activation molecule (SLAM). These features might be part of a novel molecular signature, which might have contributed to an increase in virus pathogenicity, partially explaining the high morbidity and mortality, the rapid spread, and the large host spectrum observed in this outbreak.

  2. Quaternary biogeography of the Mustelidae family on the Mediterranean islands

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    Marco Masseti

    1995-12-01

    Full Text Available Abstract Five taxa of the Mustelidae family now occur on the Mediterranean islands: the pine marten, Martes martes L., 1758, distributed on some of the Balearic and Tyrrhenian islands, the stone marten, M. foina Erxleben, 1777, which occurs on many islands of the basin, the badger, Meles meles Brisson, 1762, that has been only reported from some Greek islands, the weasel, Musteln nivalis L., 1766, common to many of the islands, and the otter, Lutra lutra L., 1758, recorded from the Greek islands. During Late Pleistocene times, only few carnivores seem to have occurred, however, on these islands and none is referable to the species that are present today. Paleontological evidence attests only to the occurrence of endemic elements, most of which were related to the Lutrinae subfamily. Apart from L. lutra, the absence during Late Pleistocene and Early Holocene of the continental species present today suggests that these carnivores are allochthonous. They were imported by man, for various purposes, probably since prehistorical and/or early historical times. Riassunto Biogeografia quaternaria della famiglia Mustelidae nelle isole del Mediterraneo - La distribuzione attuale dei rappresentanti della famiglia Mustelidae nelle isole mediterranee interessa esclusivamente cinque specie: la martora, Martes martes L., 1758, presente su alcune isole baleariche e tirreniche, la faina, M. foina Erxleben, 1777, diffusa in varie isole del Mediterraneo, il tasso, Meles meles Brisson, 1762, che viene solo segnalato per alcune isole greche, la donnola, Mustela nivalis L., 1766, che interessa molte isole del bacino e la lontra, Lutra lutra L., 1758, nota solamente per alcune isole greche. Nel corso del Pleistocene altre forme di mustelidi hanno comunque interessato queste isole e nessuna di esse può essere riferita

  3. BADGER v1.0: A Fortran equation of state library

    Science.gov (United States)

    Heltemes, T. A.; Moses, G. A.

    2012-12-01

    The BADGER equation of state library was developed to enable inertial confinement fusion plasma codes to more accurately model plasmas in the high-density, low-temperature regime. The code had the capability to calculate 1- and 2-T plasmas using the Thomas-Fermi model and an individual electron accounting model. Ion equation of state data can be calculated using an ideal gas model or via a quotidian equation of state with scaled binding energies. Electron equation of state data can be calculated via the ideal gas model or with an adaptation of the screened hydrogenic model with ℓ-splitting. The ionization and equation of state calculations can be done in local thermodynamic equilibrium or in a non-LTE mode using a variant of the Busquet equivalent temperature method. The code was written as a stand-alone Fortran library for ease of implementation by external codes. EOS results for aluminum are presented that show good agreement with the SESAME library and ionization calculations show good agreement with the FLYCHK code. Program summaryProgram title: BADGERLIB v1.0 Catalogue identifier: AEND_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEND_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html No. of lines in distributed program, including test data, etc.: 41 480 No. of bytes in distributed program, including test data, etc.: 2 904 451 Distribution format: tar.gz Programming language: Fortran 90. Computer: 32- or 64-bit PC, or Mac. Operating system: Windows, Linux, MacOS X. RAM: 249.496 kB plus 195.630 kB per isotope record in memory Classification: 19.1, 19.7. Nature of problem: Equation of State (EOS) calculations are necessary for the accurate simulation of high energy density plasmas. Historically, most EOS codes used in these simulations have relied on an ideal gas model. This model is inadequate for low

  4. Los carnívoros del yacimiento pleistoceno de Cueva del Búho (Segovia, España y sus huellas de actividad

    Directory of Open Access Journals (Sweden)

    Maldonado, E.

    1998-04-01

    Full Text Available This paper deals with the carnivores from Cueva del Búho (Segovia, Spain identifying five species (Croeuta eroeuta spelaea, Meles meles, Canis lupus, Vulpes vulpes and, Lynx spelaea. Living traces of hyena are decribed: coprolites, bone surface modifications and body parts representation. It is deduced that this site has been originated in a den of Croeuta croeuta spelaea.Este trabajo estudia los carnívoros de Cueva del Búho (Segovia, España identificando cinco especies (Croeuta croeuta spelaea, Meles meles, Canis lupus, Vulpes vulpes y Lynx spelaea. Se describen huellas de actividad de hiena: coprolitos, marcas en la superficie de huesos y representación de las distintas partes del esqueleto. Se deduce que el yacimiento se ha originado en una madriguera de Crocuta croeuta spelaea.

  5. Severe mortality of a population of threatened Agassiz’s desert tortoises: the American badger as a potential predator

    Science.gov (United States)

    Emblidge, Patrick G.; Nussear, Ken E.; Esque, Todd C.; Aiello, Christina M.; Walde, Andrew D.

    2015-01-01

    In the Mojave Desert of the southwestern United States, adult Agassiz’s desert tortoises Gopherus agassizii typically experience high survival, but population declines associated with anthropogenic impacts led to their listing as a threatened Species under the US Endangered Species Act in 1990. Predation of adult tortoises is not often considered a significant threat as they are adapted to deter most predation attempts. Despite these adaptations, some populations have experienced elevated mortality attributed to predators, suggesting that predation pressure may occasionally increase. During the tortoise activity seasons of 2012 and 2013, we observed unsustainably high mortality in 1 of 4 populations of adult desert tortoises (22 and 84%, respectively) in the western Mojave Desert in the vicinity of Barstow, CA. Photographic evidence from trail cameras and examination of carcass condition suggest that American badgers Taxidea taxus— a sometimes cited but unconfirmed predator of adult tortoises — may have been responsible for some of the mortality observed. We discuss the American badger as a plausible predator of a local tortoise population, but recommend further investigation into these events and the impacts such mortality can have on tortoise persistence.

  6. Snapshot of viral infections in wild carnivores reveals ubiquity of parvovirus and susceptibility of Egyptian mongoose to feline panleukopenia virus.

    Science.gov (United States)

    Duarte, Margarida D; Henriques, Ana Margarida; Barros, Sílvia Carla; Fagulha, Teresa; Mendonça, Paula; Carvalho, Paulo; Monteiro, Madalena; Fevereiro, Miguel; Basto, Mafalda P; Rosalino, Luís Miguel; Barros, Tânia; Bandeira, Victor; Fonseca, Carlos; Cunha, Mónica V

    2013-01-01

    The exposure of wild carnivores to viral pathogens, with emphasis on parvovirus (CPV/FPLV), was assessed based on the molecular screening of tissue samples from 128 hunted or accidentally road-killed animals collected in Portugal from 2008 to 2011, including Egyptian mongoose (Herpestes ichneumon, n = 99), red fox (Vulpes vulpes, n = 19), stone marten (Martes foina, n = 3), common genet (Genetta genetta, n = 3) and Eurasian badger (Meles meles, n = 4). A high prevalence of parvovirus DNA (63%) was detected among all surveyed species, particularly in mongooses (58%) and red foxes (79%), along with the presence of CPV/FPLV circulating antibodies that were identified in 90% of a subset of parvovirus-DNA positive samples. Most specimens were extensively autolysed, restricting macro and microscopic investigations for lesion evaluation. Whenever possible to examine, signs of active disease were not present, supporting the hypothesis that the parvovirus vp2 gene fragments detected by real-time PCR possibly correspond to viral DNA reminiscent from previous infections. The molecular characterization of viruses, based on the analysis of the complete or partial sequence of the vp2 gene, allowed typifying three viral strains of mongoose and four red fox's as feline panleukopenia virus (FPLV) and one stone marten's as newCPV-2b type. The genetic similarity found between the FPLV viruses from free-ranging and captive wild species originated in Portugal and publicly available comparable sequences, suggests a closer genetic relatedness among FPLV circulating in Portugal. Although the clinical and epidemiological significance of infection could not be established, this study evidences that exposure of sympatric wild carnivores to parvovirus is common and geographically widespread, potentially carrying a risk to susceptible populations at the wildlife-domestic interface and to threatened species, such as the wildcat (Felis silvestris) and the critically

  7. Snapshot of viral infections in wild carnivores reveals ubiquity of parvovirus and susceptibility of Egyptian mongoose to feline panleukopenia virus.

    Directory of Open Access Journals (Sweden)

    Margarida D Duarte

    Full Text Available The exposure of wild carnivores to viral pathogens, with emphasis on parvovirus (CPV/FPLV, was assessed based on the molecular screening of tissue samples from 128 hunted or accidentally road-killed animals collected in Portugal from 2008 to 2011, including Egyptian mongoose (Herpestes ichneumon, n = 99, red fox (Vulpes vulpes, n = 19, stone marten (Martes foina, n = 3, common genet (Genetta genetta, n = 3 and Eurasian badger (Meles meles, n = 4. A high prevalence of parvovirus DNA (63% was detected among all surveyed species, particularly in mongooses (58% and red foxes (79%, along with the presence of CPV/FPLV circulating antibodies that were identified in 90% of a subset of parvovirus-DNA positive samples. Most specimens were extensively autolysed, restricting macro and microscopic investigations for lesion evaluation. Whenever possible to examine, signs of active disease were not present, supporting the hypothesis that the parvovirus vp2 gene fragments detected by real-time PCR possibly correspond to viral DNA reminiscent from previous infections. The molecular characterization of viruses, based on the analysis of the complete or partial sequence of the vp2 gene, allowed typifying three viral strains of mongoose and four red fox's as feline panleukopenia virus (FPLV and one stone marten's as newCPV-2b type. The genetic similarity found between the FPLV viruses from free-ranging and captive wild species originated in Portugal and publicly available comparable sequences, suggests a closer genetic relatedness among FPLV circulating in Portugal. Although the clinical and epidemiological significance of infection could not be established, this study evidences that exposure of sympatric wild carnivores to parvovirus is common and geographically widespread, potentially carrying a risk to susceptible populations at the wildlife-domestic interface and to threatened species, such as the wildcat (Felis silvestris and the critically

  8. Adhesion of human and animal Escherichia coli strains in association with their virulence-associated genes and phylogenetic origins.

    Science.gov (United States)

    Frömmel, Ulrike; Lehmann, Werner; Rödiger, Stefan; Böhm, Alexander; Nitschke, Jörg; Weinreich, Jörg; Groß, Julia; Roggenbuck, Dirk; Zinke, Olaf; Ansorge, Hermann; Vogel, Steffen; Klemm, Per; Wex, Thomas; Schröder, Christian; Wieler, Lothar H; Schierack, Peter

    2013-10-01

    Intestinal colonization is influenced by the ability of the bacterium to inhabit a niche, which is based on the expression of colonization factors. Escherichia coli carries a broad range of virulence-associated genes (VAGs) which contribute to intestinal (inVAGs) and extraintestinal (exVAGs) infection. Moreover, initial evidence indicates that inVAGs and exVAGs support intestinal colonization. We developed new screening tools to genotypically and phenotypically characterize E. coli isolates originating in humans, domestic pigs, and 17 wild mammal and avian species. We analyzed 317 isolates for the occurrence of 44 VAGs using a novel multiplex PCR microbead assay (MPMA) and for adhesion to four epithelial cell lines using a new adhesion assay. We correlated data for the definition of new adhesion genes. inVAGs were identified only sporadically, particularly in roe deer (Capreolus capreolus) and the European hedgehog ( Erinaceus europaeus). The prevalence of exVAGs depended on isolation from a specific host. Human uropathogenic E. coli isolates carried exVAGs with the highest prevalence, followed by badger (Meles meles) and roe deer isolates. Adhesion was found to be very diverse. Adhesion was specific to cells, host, and tissue, though it was also unspecific. Occurrence of the following VAGs was associated with a higher rate of adhesion to one or more cell lines: afa-dra, daaD, tsh, vat, ibeA, fyuA, mat, sfa-foc, malX, pic, irp2, and papC. In summary, we established new screening methods which enabled us to characterize large numbers of E. coli isolates. We defined reservoirs for potential pathogenic E. coli. We also identified a very broad range of colonization strategies and defined potential new adhesion genes.

  9. Neospora caninum antibodies in wild carnivores from Spain.

    Science.gov (United States)

    Sobrino, R; Dubey, J P; Pabón, M; Linarez, N; Kwok, O C; Millán, J; Arnal, M C; Luco, D F; López-Gatius, F; Thulliez, P; Gortázar, C; Almería, S

    2008-08-17

    Serum samples from 251 wild carnivores from different regions of Spain were tested for antibodies to Neospora caninum by the commercial competitive screening enzyme linked immunosorbent assay (c-ELISA) and confirmed by Neospora agglutination test (NAT) and/or by indirect fluorescent antibody test (IFAT). Samples with antibodies detected by at least two serological tests were considered seropositive. Antibodies to N. caninum were found in 3.2% of 95 red foxes (Vulpes vulpes); in 21.4% of 28 wolves (Canis lupus); in 12.0% of 25 Iberian lynx (Lynx pardinus); in 16.7% of 6 European wildcats (Felis silvestris); in 6.4% of 31 Eurasian badgers (Meles meles); in 21.4% of 14 stone martens (Martes foina); in 66.7% of 3 pine martens (M. martes) and in 50% of 2 polecats (Mustela putorius). Antibodies to N. caninum in common genets (Genetta genetta) and Egyptian mongooses (Herpestes ichneumon) were only observed by c-ELISA but were not confirmed by IFAT and/or NAT. No antibodies were detected in 5 Eurasian otters (Lutra lutra) by any technique. Statistically significant differences were observed among species and among geographical areas. The highest seroprevalence of N. caninum infection was observed in the Cantabric Coastal region characterized by high humidity. To our knowledge, this is the first report of antibodies to N. caninum in free ranging wild carnivores, other than wild canids, in Europe. The existence of a possible sylvatic cycle could have important implications in both sylvatic and domestic cycles since they might influence the prevalence of infection in cattle farms in those areas.

  10. Long-term resource variation and group size: A large-sample field test of the Resource Dispersion Hypothesis

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    Morecroft Michael D

    2001-07-01

    Full Text Available Abstract Background The Resource Dispersion Hypothesis (RDH proposes a mechanism for the passive formation of social groups where resources are dispersed, even in the absence of any benefits of group living per se. Despite supportive modelling, it lacks empirical testing. The RDH predicts that, rather than Territory Size (TS increasing monotonically with Group Size (GS to account for increasing metabolic needs, TS is constrained by the dispersion of resource patches, whereas GS is independently limited by their richness. We conducted multiple-year tests of these predictions using data from the long-term study of badgers Meles meles in Wytham Woods, England. The study has long failed to identify direct benefits from group living and, consequently, alternative explanations for their large group sizes have been sought. Results TS was not consistently related to resource dispersion, nor was GS consistently related to resource richness. Results differed according to data groupings and whether territories were mapped using minimum convex polygons or traditional methods. Habitats differed significantly in resource availability, but there was also evidence that food resources may be spatially aggregated within habitat types as well as between them. Conclusions This is, we believe, the largest ever test of the RDH and builds on the long-term project that initiated part of the thinking behind the hypothesis. Support for predictions were mixed and depended on year and the method used to map territory borders. We suggest that within-habitat patchiness, as well as model assumptions, should be further investigated for improved tests of the RDH in the future.

  11. Invasion of the raccoon dog Nyctereutes procyonoides in Europe: History of colonization, features behind its success, and threats to native fauna

    Directory of Open Access Journals (Sweden)

    Kaarina KAUHALA, Rafal KOWALCZYK

    2011-10-01

    Full Text Available We aimed to review the history of the introduction and colonization of the raccoon dog Nyctereutes procyonoides in Europe, the features behind its successful expansion and its impact on native fauna. The raccoon dog quickly colonized new areas after being introduced to the European part of the former Soviet Union. Today it is widespread in Northern and Eastern Europe and is still spreading in Central Europe. Features behind its success include its adaptability, high reproductive potential, omnivory, hibernation in northern areas, multiple introductions with > 9000 individuals from different localities, and tendency to wander enabling gene flow between populations. Firm evidence of the raccoon dog’s negative impact on native fauna, such as a reduction in bird populations, is still scarce. Raccoon dogs may destroy waterfowl nests, although a nest predation study in Latvia did not confirm this. Predator removal studies in Finland suggested that the raccoon dog’s impact on game birds is smaller than expected. However, raccoon dogs may have caused local extinction of frog populations, especially on islands. Raccoon dogs may compete with other carnivores for food, for example for carrion in winter, or for the best habitat patches. In northern Europe potential competitors include the red fox Vulpes vulpes and the badger Meles meles, but studies of their diets or habitat preferences do not indicate severe competition. The raccoon dog is an important vector of diseases and parasites, such as rabies, Echinococcus multilocularis and Trichinella spp. and this is no doubt the most severe consequence arising from the spread of this alien species in Europe [Current Zoology 57 (5: 584–598, 2011].

  12. Invasion of the raccoon dog Nyctereutes procyonoides in Europe: History of colonization, features behind its success,and threats to native fauna

    Institute of Scientific and Technical Information of China (English)

    Kaarina KAUHALA; Rafal KOWALCZYK

    2011-01-01

    We aimed to review the history of the introduction and colonization of the raccoon dog Nyctereutes ptocyonoides in Europe,the features behind its successful expansion and its impact on native fauna.The raccoon dog quickly colonized new areas after being introduced to the European part of the former Soviet Union.Today it is widespread in Northern and Eastern Europe and is still spreading in Central Europe.Features behind its success include its adaptability,high reproductive potential,omnivoty,hibernation in northern areas,multiple introductions with > 9000 individuals from different localities,and tendency to wander enabling gene flow between populations.Firm evidence of the raccoon dog's negative impact on native fauna,such as a reduction in bird populations,is still scarce.Raccoon dogs may destroy waterfowl nests,although a nest predation study in Latvia did not confirm this.Predator removal studies in Finland suggested that the raccoon dog's impact on game birds is smaller than expected.However,raccoon dogs may have caused local extinction of frog populations,especially on islands.Raccoon dogs may compete with other carnivores for food,for example for carrion in winter,or for the best habitat patches.In northern Europe potential competitors include the red fox Vulpes vulpes and the badger Meles meles,but studies of their diets or habitat preferences do not indicate severe competition.The raccoon dog is an important vector of diseases and parasites,such as rabies,Echinococcus multilocularis and Trichinella spp.and this is no doubt the most severe consequence arising from the spread of this alien species in Europe [Current Zoology 57 (5):584-598,2011].

  13. Phylogenetic analysis of Austrian canine distemper virus strains from clinical samples from dogs and wild carnivores.

    Science.gov (United States)

    Benetka, V; Leschnik, M; Affenzeller, N; Möstl, K

    2011-04-01

    Austrian field cases of canine distemper (14 dogs, one badger [Meles meles] and one stone marten [Martes foina]) from 2002 to 2007 were investigated and the case histories were summarised briefly. Phylogenetic analysis of fusion (F) and haemagglutinin (H) gene sequences revealed different canine distemper virus (CDV) lineages circulating in Austria. The majority of CDV strains detected from 2002 to 2004 were well embedded in the European lineage. One Austrian canine sample detected in 2003, with a high similarity to Hungarian sequences from 2005 to 2006, could be assigned to the Arctic group (phocine distemper virus type 2-like). The two canine sequences from 2007 formed a clearly distinct group flanked by sequences detected previously in China and the USA on an intermediate position between the European wildlife and the Asia-1 cluster. The Austrian wildlife strains (2006 and 2007) could be assigned to the European wildlife group and were most closely related to, yet clearly different from, the 2007 canine samples. To elucidate the epidemiological role of Austrian wildlife in the transmission of the disease to dogs and vice versa, H protein residues related to receptor and host specificity (residues 530 and 549) were analysed. All samples showed the amino acids expected for their host of origin, with the exception of a canine sequence from 2007, which had an intermediate position between wildlife and canine viral strains. In the period investigated, canine strains circulating in Austria could be assigned to four different lineages reflecting both a high diversity and probably different origins of virus introduction to Austria in different years.

  14. Isobaculum melis gen. nov., sp. nov., a Carnobacterium-like organism isolated from the intestine of a badger.

    Science.gov (United States)

    Collins, Matthhew D; Hutson, Roger A; Foster, Geoffrey; Falsen, Enevold; Weiss, Norbert

    2002-01-01

    Phenotypic and phylogenetic studies were performed on a hitherto undescribed facultatively anaerobic, catalase-negative, gram-positive rod-shaped organism, strain M577-94T, isolated from the small intestine of a dead badger. It resembled carnobacteria in terms of its long-chain cellular fatty acid composition, but differed markedly from the latter in possessing a cell-wall murein based on L-lysine (type L-Lys-L-Thr-Gly). Comparative 16S rRNA gene sequencing showed that the unknown bacterium represents a new line closely related to, albeit distinct from, the genera Carnobacterium and Desemzia. On the basis of phylogenetic and phenotypic evidence, it is proposed that strain M577-94T be classified as Isobaculum melis gen. nov., sp. nov. The type strain of Isobaculum melis is CCUG 37660T (= DSM 13760T).

  15. [Sequencing and analysis of complete genome of rabies viruses isolated from Chinese Ferret-Badger and dog in Zhejiang province].

    Science.gov (United States)

    Lei, Yong-Liang; Wang, Xiao-Guang; Tao, Xiao-Yan; Li, Hao; Meng, Sheng-Li; Chen, Xiu-Ying; Liu, Fu-Ming; Ye, Bi-Feng; Tang, Qing

    2010-01-01

    Based on sequencing the full-length genomes of four Chinese Ferret-Badger and dog, we analyze the properties of rabies viruses genetic variation in molecular level, get the information about rabies viruses prevalence and variation in Zhejiang, and enrich the genome database of rabies viruses street strains isolated from China. Rabies viruses in suckling mice were isolated, overlapped fragments were amplified by RT-PCR and full-length genomes were assembled to analyze the nucleotide and deduced protein similarities and phylogenetic analyses from Chinese Ferret-Badger, dog, sika deer, vole, used vaccine strain were determined. The four full-length genomes were sequenced completely and had the same genetic structure with the length of 11, 923 nts or 11, 925 nts including 58 nts-Leader, 1353 nts-NP, 894 nts-PP, 609 nts-MP, 1575 nts-GP, 6386 nts-LP, and 2, 5, 5 nts- intergenic regions(IGRs), 423 nts-Pseudogene-like sequence (psi), 70 nts-Trailer. The four full-length genomes were in accordance with the properties of Rhabdoviridae Lyssa virus by BLAST and multi-sequence alignment. The nucleotide and amino acid sequences among Chinese strains had the highest similarity, especially among animals of the same species. Of the four full-length genomes, the similarity in amino acid level was dramatically higher than that in nucleotide level, so the nucleotide mutations happened in these four genomes were most synonymous mutations. Compared with the reference rabies viruses, the lengths of the five protein coding regions had no change, no recombination, only with a few point mutations. It was evident that the five proteins appeared to be stable. The variation sites and types of the four genomes were similar to the reference vaccine or street strains. And the four strains were genotype 1 according to the multi-sequence and phylogenetic analyses, which possessed the distinct district characteristics of China. Therefore, these four rabies viruses are likely to be street viruses

  16. Impact of a changed inundation regime caused by climate change and floodplain rehabilitation on population viability of earthworms in a lower River Rhine floodplain.

    Science.gov (United States)

    Thonon, Ivo; Klok, Chris

    2007-01-01

    season. Floodplain rehabilitation, on the other hand, reduces the part of the floodplain area where populations can sustain themselves. Before rehabilitation, only 12% of the floodplain area cannot sustain a viable earthworm population. After rehabilitation, this increases to 59%, 28% of which is due to more frequent flooding. Enhanced exposure to soil contaminants may further suppress earthworm viability. This could frustrate further nature development and the viability of earthworm-dependent species such as the badger (Meles meles) or little owl (Athene noctua vidalli species), which is an objective of the river rehabilitation plans in the Netherlands.

  17. Fine-scale landscape genetics of the American badger (Taxidea taxus): disentangling landscape effects and sampling artifacts in a poorly understood species.

    Science.gov (United States)

    Kierepka, E M; Latch, E K

    2016-01-01

    Landscape genetics is a powerful tool for conservation because it identifies landscape features that are important for maintaining genetic connectivity between populations within heterogeneous landscapes. However, using landscape genetics in poorly understood species presents a number of challenges, namely, limited life history information for the focal population and spatially biased sampling. Both obstacles can reduce power in statistics, particularly in individual-based studies. In this study, we genotyped 233 American badgers in Wisconsin at 12 microsatellite loci to identify alternative statistical approaches that can be applied to poorly understood species in an individual-based framework. Badgers are protected in Wisconsin owing to an overall lack in life history information, so our study utilized partial redundancy analysis (RDA) and spatially lagged regressions to quantify how three landscape factors (Wisconsin River, Ecoregions and land cover) impacted gene flow. We also performed simulations to quantify errors created by spatially biased sampling. Statistical analyses first found that geographic distance was an important influence on gene flow, mainly driven by fine-scale positive spatial autocorrelations. After controlling for geographic distance, both RDA and regressions found that Wisconsin River and Agriculture were correlated with genetic differentiation. However, only Agriculture had an acceptable type I error rate (3-5%) to be considered biologically relevant. Collectively, this study highlights the benefits of combining robust statistics and error assessment via simulations and provides a method for hypothesis testing in individual-based landscape genetics.

  18. Construction and properties of a topological index for periodically driven time-reversal invariant 2D crystals

    Directory of Open Access Journals (Sweden)

    D. Carpentier

    2015-07-01

    Full Text Available We present mathematical details of the construction of a topological invariant for periodically driven two-dimensional lattice systems with time-reversal symmetry and quasienergy gaps, which was proposed recently by some of us. The invariant is represented by a gap-dependent Z2-valued index that is simply related to the Kane–Mele invariants of quasienergy bands but contains an extra information. As a byproduct, we prove new expressions for the two-dimensional Kane–Mele invariant relating the latter to Wess–Zumino amplitudes and the boundary gauge anomaly.

  19. Lung and hearth nematodes in some Spanish mammals.

    Science.gov (United States)

    Alvarez, F; Iglesias, R; Bos, J; Rey, J; Sanmartin Durán, M L

    1991-01-01

    Thirteen host species belonging to the orders Rodentia, Insectivora and Carnivora from various localities in Galicia (NW Spain) were examined for heart and lung parasites. The following species were found: Parastrongylus dujardini (5.5%) in Apodemus sylvaticus, Crenosoma striatum in Erinaceus europaeus (83%), Angiostrongylus vasorum, Crenosoma vulpis and Eucoleus aerophilus in Vulpes vulpes (3, 3.46 and 0.50%, respectively), Crenosoma taiga in Putorius putorius (100%) and Crenosoma sp. in Meles meles (25%). In Crocidura russula nematode larvae were found (3.3%). Mus musculus, Rattus norvegicus, Rattus rattus, Talpa caeca, Sorex araneus, Genetta genetta and Canis lupus were not parasitized by lung or heart parasites.

  20. Linking bovine tuberculosis on cattle farms to white-tailed deer and environmental variables using Bayesian hierarchical analysis

    Science.gov (United States)

    Walter, William D.; Smith, Rick; Vanderklok, Mike; VerCauterren, Kurt C.

    2014-01-01

    Bovine tuberculosis is a bacterial disease caused by Mycobacterium bovis in livestock and wildlife with hosts that include Eurasian badgers (Meles meles), brushtail possum (Trichosurus vulpecula), and white-tailed deer (Odocoileus virginianus). Risk-assessment efforts in Michigan have been initiated on farms to minimize interactions of cattle with wildlife hosts but research onM. bovis on cattle farms has not investigated the spatial context of disease epidemiology. To incorporate spatially explicit data, initial likelihood of infection probabilities for cattle farms tested for M. bovis, prevalence of M. bovis in white-tailed deer, deer density, and environmental variables for each farm were modeled in a Bayesian hierarchical framework. We used geo-referenced locations of 762 cattle farms that have been tested for M. bovis, white-tailed deer prevalence, and several environmental variables that may lead to long-term survival and viability of M. bovis on farms and surrounding habitats (i.e., soil type, habitat type). Bayesian hierarchical analyses identified deer prevalence and proportion of sandy soil within our sampling grid as the most supported model. Analysis of cattle farms tested for M. bovisidentified that for every 1% increase in sandy soil resulted in an increase in odds of infection by 4%. Our analysis revealed that the influence of prevalence of M. bovis in white-tailed deer was still a concern even after considerable efforts to prevent cattle interactions with white-tailed deer through on-farm mitigation and reduction in the deer population. Cattle farms test positive for M. bovis annually in our study area suggesting that the potential for an environmental source either on farms or in the surrounding landscape may contributing to new or re-infections with M. bovis. Our research provides an initial assessment of potential environmental factors that could be incorporated into additional modeling efforts as more knowledge of deer herd

  1. Evaluation of a combination of SIFT-MS and multivariate data analysis for the diagnosis of Mycobacterium bovis in wild badgers.

    Science.gov (United States)

    Spooner, Andrew D; Bessant, Conrad; Turner, Claire; Knobloch, Henri; Chambers, Mark

    2009-09-01

    The currently accepted 'gold standard' tuberculosis (TB) detection method for veterinary applications is that of culturing from a tissue sample post mortem. The test is accurate, but growing Mycobacterium bovis is difficult and the process can take up to 12 weeks to return a diagnosis. In this paper we evaluate a much faster screening approach based on serum headspace analysis using selected ion flow tube mass spectrometry (SIFT-MS). SIFT-MS is a rapid, quantitative gas analysis technique, with sample analysis times of as little as a few seconds. Headspace from above serum samples from wild badgers, captured as part of a randomised trial, was analysed. Multivariate classification algorithms were then employed to extract a simple TB diagnosis from the complex multivariate response provided by the SIFT-MS instrument. This is the first time that such multivariate analysis has been applied to SIFT-MS data. An accuracy of TB discrimination of approximately 88% true positive was achieved which shows promise, but the corresponding false positive rate of 38% indicates that there is more work to do before this approach could replace the culture test. Recommendations for future work that could increase the performance are therefore proposed.

  2. DoD Technology Transfer Program: Defense Industrial Base Seminar and Workshops

    Science.gov (United States)

    2010-06-16

    Disclosures App licat ions Issued • 2001 • 2002 2003 • 2004 • 2005 2006 2007 2008 2009 APPROVED FOR PUBLIC RELEASE • Provide skill...Carson, CO – ORTA: Paul Mele and Sara Miller, Army Medical Research and Materiel Command – Inventor : Sgt. Lynn Randall King, 91W Command

  3. Kättpidi Keenias, peadpidi Ladina-Ameerikas / Mari Kodres

    Index Scriptorium Estoniae

    Kodres, Mari

    2009-01-01

    Arvustus: Pesti, Mele ; Kristjan Jansen. Mate ja miljon mahla : üheksa kuud Lõuna-Ameerikas : Argentiina, Paraguai, Boliivia, Tšiili, Brasiilia. [Kuressaare] : K. Jansen : M. Pesti, 2009 ; Vihma, Peeter. Kättpidi Keenias, ehk, Kümme lugu läbikukkunud vabatahtlikult Ida-Aafrikas. Tallinn : Eesti Ekspress, 2009

  4. Classroom Demonstration: Combustion of Diamond to Carbon Dioxide Followed by Reduction to Graphite

    Science.gov (United States)

    Miyauchi, Takuya; Kamata, Masahiro

    2012-01-01

    An educational demonstration shows the combustion of carbon to carbon dioxide and then the reduction of carbon dioxide to carbon. A melee diamond is the source of the carbon and the reaction is carried out in a closed flask. The demonstration helps students to realize that diamonds are made of carbon and that atoms do not change or vanish in…

  5. BEHAVIORAL EVALUATION OF PERINATAL EXPOSURE TO AROCLOR 1254 IN RATS: FIXED-INTERVAL PERFORMANCE AND REINFORCEMENT-OMISSION.

    Science.gov (United States)

    Mele et al. (1986) reported exposure to Aroclor 1248 (A1248) in rhesus monkeys produced an increased rate of responding under a fixed-interval (FI) schedule of reinforcement in which 25% of the scheduled reinforcers were omitted. The purpose of this work was to determine whether...

  6. The Militarization of Gazprom

    Science.gov (United States)

    2010-10-01

    President Dmitry Medvedev with Gazprom Neft-Omsk Refinery’s CEO Alexander Meling, 12 February 2010. (AFP Photo) IN JULY 2007, Russia’s Duma passed a bill...April 2009. 18. Alexander Mashkov, “Ingushetia-Oil: Losses from Oil Stealing in Ingushetia Estimated at Mlns,” Itar-Tass Weekly News, 31 March 2001. 19

  7. It is not Just a Press Conference: The Consequences of Crisis Communication While the World Watches

    Science.gov (United States)

    2014-03-01

    member panel, issued a stinging rebuke of the Japanese government, bureaucratic regulators, and Tokyo Electric Power Company, which had been widely...the best position in front of the courthouse turned into a melee between photographers and producers staking their ground on limited sidewalk space

  8. 内蒙古赛罕乌拉自然保护区4种小型食肉目动物的食性构成的初步分析%Preliminary comparison of diet composition of four small sized carnivores at Saihanwula Nature Reserve,Inner Mongolia

    Institute of Scientific and Technical Information of China (English)

    张逦嘉; 王安梦; 袁梨; 鲍伟东; 杨永昕; 巴特尔

    2011-01-01

    为了解同域分布动物的食物竞争关系,采用样线法收集粪便样品,依据残遗物鉴别物种的方法,于2007年8~12月对赛罕乌拉国家级自然保护区的赤狐、狗獾、香鼬和豹猫的食物构成进行比较.结果表明:赤狐取食所有15类食物,并捕食小型鼬类;在赤狐粪样(n=70)中出现率较大的植物(32.6%)以重量比率计算时其贡献极大下降(0.02%),而出现率较低的草兔和鸟类重量比率较高(草兔65.4%,鸟类22.9%),相对重要值的计算表示,赤狐的食物构成均一.狗獾(n=64)以取食昆虫和植物果实为主(出现率29.3%和57.8%).香鼬(n=14)集中取食鼠类(出现率73.7%,相对重量99.8%),豹猫(n=11)则以鸟类居多(出现率27.8%,相对重量69.0%).食物生态位的宽度以赤狐最大(0.2),其次为豹猫(0.07).根据食物生态位的重叠度分析,赤狐与狗獾(O=0.99)和豹猫(O=0.7)以及狗獾与豹猫(O=0.6)的种间竞争较强,但在主要食物上出现分离,实现捕食者之间的共存.赤狐对香鼬的捕食可能限制了其种群的发展.%Food habits and competition of sympatric carnivores at Saihanwula Nature Reserve, Inner Mongolia were compared from August to December 2007 by examining fecal content Food items were evaluated by rate of occurrence in the diet and in weight percentage of total diet. Our study included red fox ( Vulpes vulpes ), badger ( Meles meles ), mountain weasel (Mustela altaica) and leopard cat (Felis bengalensis). The data indicate red fox ingested 15 kinds of food with the following composition: plants (32.6% ), rodents (31.3% ) and birds ( 18. 6% ); weasels were occasionally preyed upon (0. 7% ). Although plant occurrence was high percentage, the role of vegetation decreased when calculated in relative weight percentage. Badger consumed more insects (29. 3% ) and fruit (57. 8% ) in terms of frequency, while mountain weasel preyed upon rodents at a very high rate of occurrence ( 73. 7% ) and weight

  9. Recycling of Badger/Fox Burrows in Late Pleistocene Loess by Hyenas at the Den Site Bad Wildungen-Biedensteg (NW, Germany: Woolly Rhinoceros Killers and Scavengers in a Mammoth Steppe Environment of Europe

    Directory of Open Access Journals (Sweden)

    Cajus Diedrich

    2013-01-01

    Full Text Available The Late Pleistocene (MIS 5c-d Ice Age spotted hyena open air den and bone accumulation site Bad Wildungen-Biedensteg (Hesse, NW, Germany represents the first open air loess fox/badger den site in Europe, which must have been recycled by Crocuta crocuta spelaea (Goldfuss, 1823 as a birthing den. Badger and fox remains, plus remains of their prey (mainly hare, have been found within the loess. Hyena remains from that site include parts of cub skeletons which represent 10% of the megafauna bones. Also a commuting den area existed, which was well marked by hyena faecal pellets. Most of the hyena prey bones expose crack, bite, and nibbling marks, especially the most common bones, the woolly rhinoceros Coelodonta antiquitatis (NISP  =  32%. The large amount of woolly rhinoceros bones indicate hunting/scavenging specializing on this large prey by hyenas. Other important mammoth steppe hyena prey remains are from Mammuthus primigenius, Equus caballus przewalskii, Bison/Bos, Megaloceros giganteus, Cervus elaphus, and Rangifer tarandus. The few damaged bone remains of a scavenged cave bear Ursus spelaeus subsp. are unique for an open air situation. Abundant micromammal, frog, and some fish remains were concentrated in “pellets” that contain mainly mammoth steppe micromammals and also frog and fish remains that seem to originate from the nearby river/lake.

  10. Involvement of two genetic lineages of Sarcoptes scabiei mites in a local mange epizootic of wild mammals in Japan.

    Science.gov (United States)

    Makouloutou, Patrice; Suzuki, Kazuo; Yokoyama, Mayumi; Takeuchi, Masahiko; Yanagida, Tetsuya; Sato, Hiroshi

    2015-01-01

    Similar to wild mammals on the continents, mange caused by the mange mite, Sarcoptes scabiei (Acari: Sarcoptidae) is spreading in wild mammals in most of Japan. We collected crusted or alopetic skin from 120 raccoon dogs (Nyctereutes procyonoides viverrinus), three raccoons (Procyon lotor), six Japanese badgers (Meles anakuma), one Japanese marten (Martes melampus), one stray dog (Canis lupus familiaris), four wild boars (Sus scrofa leucomystax), and one Japanese serow (Capricornis crispus), mainly in an area where mangy wild animals have been increasingly noted in the past 4 yr. The second internal transcribed spacer (ITS2) region of the ribosomal RNA gene and the partial 16S and cytochrome c oxidase subunit I (cox-1) genes of mitochondrial DNA (mtDNA) were characterized in these skin samples. The ITS2 sequencing (404 base pairs [bp]) identified the causative mite for mangy skin lesions of 128 animals as S. scabiei, regardless of host origin. The cat mite (Notoedres cati) was the cause in one raccoon dog and one raccoon. Most mites had almost identical ITS2 nucleotide sequences to those recorded in a variety of mammals worldwide. Partial 16S and cox-1 fragments of mtDNA amplified and sequenced successfully (331 bp and 410 bp, respectively) showed an identical nucleotide sequence except for one site (C vs. T) for the former and four sites (G, C, C, C vs. A, T, T, T, respectively) for the latter fragment. These substitutions were always synchronized, with the two mitochondrial DNA haplotypes (i.e., C/GCCC and T/ATTT) appearing to separately colonize in geographic units. The T/ATTT haplotype fell into a clade where animal-derived mites worldwide dominated, whereas the C/GCCC haplotype formed a geographic branch unique to Japanese isolates. These results suggest that heterologous populations of monospecific S. scabiei are expanding their populations and distributions regardless of host species in an apparently local mange epizootic of wild mammals in Japan.

  11. 辽宁朝阳马山洞的食肉类化石%Late Pleistocene Cave Deposits and Carnivores from the Mashandong Site,Chaoyang Municipality,Liaoning Province

    Institute of Scientific and Technical Information of China (English)

    傅仁义; 冯兴无; 张双权; 刘晓庆

    2010-01-01

    本文主要记述了辽宁省朝阳市龙城区马山洞发现的食肉类化石.堆积物的上部主要为颗粒细小的砂质黏土,而下部主要为直径较大的角砾.2007年出土的食肉目化石有:似浣熊貉(Nyctereutes procyonoides)、赤狐(Vulpes vulpes)、狗獾(Meles meles)、黄鼬(Mustela sibirica)、中华猫(Felis chinensis)和疑似虎(Panthera tigris)?.其中前5个种在形态上与现生种类非常接近;而最后一个种除与现生虎比较接近外,与现生狮子也有一定的相似性.

  12. The Eurasian Otter in the South Caucasus

    Directory of Open Access Journals (Sweden)

    Gorgadze G.

    2004-07-01

    Full Text Available Seven species of Mustelidae are to be found in the south Caucasus (Armenia, Azerbaijan and Georgia: Lutra lutra, Martes martes, Martes foina, Meles meles, Mustela vison, Mustela nivalis and Vormela peregusna. The rarest of these species are the Eurasian otter (Lutra lutra and the marbled polecat (Vormela peregusna. The Eurasian otter, one of most endangered species of the south caucasian fauna, is still suffering under the influence of poaching, habitat loss, disturbance and pollution. No fundamental research has been undertaken on otters in any of the south Caucasian countries and, therefore, data provided in the literature are scarce. Further, no DNA analysis has been undertaken in this part of the world and, therefore, the actual number of subspecies is not clear.

  13. Proceedings of the International Congress (12th), Corrosion Control for Low-Cost Reliability, Held in Houston, Texas on September 19 -24, 1993. Volume 1. Coatings

    Science.gov (United States)

    1993-09-24

    Gutierrez (Colombia) Ing. Marcos Valencia Medrano (Peru) Ing. Juan Fdo. Alvarez (Costa Rica) Prof. Dr. R. Juchniewicz (Poland) Ing. Teresita Calderon... Fernandez , M. Leiro, B. Rosales, E. Ayllon, F. Varela, C. 175 The Investigation of a New Autodeposition Coaling System Gervasi, and]. Vilche...Mene3H. Videla, S. Gomez de Saravia, and M. de Mele .............. 3687 465 Some Through-Ufe Risk/Reliability Considerations for Components 479 Factors

  14. Evolution of Landau levels in graphene-based topological insulators in the presence of wedge disclinations

    CERN Document Server

    Oliveira, J R S; Furtado, C; Sergeenkov, S

    2016-01-01

    In this paper we consider modification of electronic properties of graphene-based topological insulator in the presence of wedge disclination and magnetic field by adopting the Kane-Mele model with intrinsic spin-orbit coupling. Using the properly defined Dirac-Weyl equation for this system, an exact solution for the Landau levels is obtained. The influence of the topological defect on the evolution of Landau levels is discussed.

  15. Savages in a Civilized War: The Native Americans as French Allies in the Seven Years War, 1754-1763

    Science.gov (United States)

    2013-06-14

    melee with clubs , tomahawks, and knives. To make themselves look more ferocious and intimidate their foes, they would paint themselves different...Beaujeu selected Jen-Daniel Dumas , another partisan leader of the Troupes de la Marine to be his second in command. Leading the Indian contingent of the...was shaken, Dumas rallied his forces. While the Troupes de la Marine formed a blocking position, Langlade, the Indians, and the Canadian militia

  16. An Assessment of Alternative Diesel Fuels: Microbiological Contamination and Corrosion Under Storage Conditions

    Science.gov (United States)

    2010-08-01

    example, Clados- parium (Hormoconis) resinae grew in 80 mg water per 1 of kerosene and after 4 weeks incubation, the concentration of water increased...common isolate related to aircraft fuel and MIC is the fungus Hormoeonis resinae (Churchill 1963; Hendey 1964; Videla et al. 1993). de Mele et al. (1979...Videla (1996) demonstrated acid-etched traces of fungal mycelia on aluminum surfaces colonized by //. resinae . de Meybaum and de Schiapparelli

  17. Bollettino Sismico Italiano: novità

    OpenAIRE

    2015-01-01

    I parametri dei terremoti registrati dalla Rete Sismica Nazionale Italiana, localizzati nella sala di sorveglianza sismica dell’INGV, sono immediatamente disponibili sul web alla pagina http://cnt.rm.ingv.it/ e nell’Italian Seismological Instrumental and parametric Data-base (ISIDe; Mele et al. 2007) http://iside.rm.ingv.it/iside/standard/index.jsp. Questi eventi sono in seguito revisionati dagli analisti del Bollettino. Gli analisti ricontrollano i parametri di tutti i terremoti ottenuti ins...

  18. Findings From Existing Data on the Department of Defense Industrial Base: Guided Missile and Space Vehicle Manufacturing Example

    Science.gov (United States)

    2015-04-30

    Guided Missile and Space Vehicle Manufacturing Example Nancy Y. Moore, RAND Corporation Clifford A. Grammich, RAND Corporation Judith D. Mele, RAND...TITLE AND SUBTITLE Findings From Existing Data on the Department of Defense Industrial Base: Guided Missile and Space Vehicle Manufacturing Example...Missile and Space Vehicle Manufacturing industry example to illustrate how the DoD can gain information on its industrial base from data the federal

  19. Phthiraptera from some wild carnivores in Spain

    OpenAIRE

    1990-01-01

    During 1987 and the first months of 1988, several carnivores were surveyed for ecological studies by means of radio-tracking techniques and in order to identify the ischnoceran species parasitising these animals. The hosts belonged to the following species: Felis pardina, Felis silvestris, Herpestes ichneumon, Genetta genetta, Vulpes vulpes and Metes meles. While no lice were found on the two first species, the remaining ones were parasitised by Felicola (Felicola) inaequalis, Lorisicol...

  20. Deployment Area Selection and Land Withdrawal/Acquisition. Chapter 3. M-X/MPS (M-X/Multiple Protective Shelter). Volume 1. Affected Environment.

    Science.gov (United States)

    1981-10-02

    latipinna Sailf in molly P. reticulata Guppy ’Rip-h-oporus helleri Green swordtail X. maculatus Southern platyfish Family PERCIDAE Perch 1,2 * Perca...grindelioides var. depressa MAGRD 3c *Machaeranthera leuccL ithemifolia (Greene) Green~e MALE 3c Mentzelia leucophylla Bdg. I MELE 1 * \\ertensia toivabensis...be those between 24 and 64) and the ratio of males to females. The latter generally reflects the ability of females to find employment on or near the

  1. Molecular cloning and evolutionary analysis of hog badger bitter taste receptor T2R2 gene%猪獾苦味受体T2R2基因的分子克隆与进化分析

    Institute of Scientific and Technical Information of China (English)

    徐怀亮; 姚永芳; 朱庆

    2009-01-01

    Recognition of natural bitter toxins through taste is one of the most effective mechanisms of self-safety. An approximate 1 169 bp sequence of the bitter taste receptor T2R2 gene was obtained by PCR and cloning technique from hog badger genomic DNA(GenBank accession number: FJ812727). This sequence contains a complete single exon (without intron) 915 bp in size, which encodes 304 amino acid residues. The isoelectric point (pi) of the protein is 9.76 and its mo-lecular weight is 34.74 kDa. Topology prediction showed that the T2R2 protein contained one N-glycosylation site, one N-myristoylation site, and two potential protein kinase C phosphorylation sites. Additionally, the whole peptide chain was comprised of seven transmembrane helix regions, four extracellular regions, and four intracellular regions. The T2R2 is a hydrophobic protein with a few hydrophilic components. Homology analysis of the T2R2 gene sequences by Clustal Windicated that the cDNA sequence homology of T2R2 gene in hog badger with dog, cat, cattle, horse, chimpanzee, and mouse is 91.4%, 90.6%, 84.4%, 85.4%, 83.8%and 72.1%, respectively, and the homology of amino acid sequence is 85.5%, 85.8%, 74.0%, 77.6%, 75.3% and 61.5%, respectively. The results of nucleotide acid substitution computation and selective test showed that strong purifying selection (functional constraint) occurred between hog badger and the six species, respec-tively, which mainly existed in the transmembrane regions of T2R2. In addition, the Neighbour-Joining tree of T2R2 gene exons from these seven species is consistent with their species tree, indicating that the T2R2 gene is suitable for constructing molecular phylogenetic tree among different species likewise.%苦味的感知是机体有效的自我保护机制之一,文章采用PCR和克隆测序方法首次从猪獾基因组中获得一全长为1 169 bp的苦味受体T2R2基因DNA序列(GenBank登录号:FJ812727).该序列含有完整的1个外

  2. Simulation and experiment of badger claw toe bionic excavator bucket tooth for improving performance of digging and cutting%挖掘机獾爪趾仿生斗齿提高其入土性能仿真与试验

    Institute of Scientific and Technical Information of China (English)

    马云海; 裴高院; 王虎彪; 吕雪漫; 宋国风; 佟金

    2016-01-01

    In order to solve the problems of high resistance and fracture in excavator bucket tooth, a bionic excavator bucket tooth was designed. Bucket tooth is assembled in the bucket tip, which is an important component of excavator, and its performance directly impacts the performance of bucket and even excavator. The bucket tooth is prone to abrasive wear during the operation, which could result in the reduction of cutting capacity. Improvement of bucket tooth configuration is one of the methods to improve the performance of bucket tooth. In this paper the badger was selected as the research object. Badger is a mammal, which is distributed in most parts of Europe and Asia. Badger is good at digging and it is a kind of burrowing animal. Badger owns slender and bending front claws, which are a powerful tool for digging. Therefore, by inspiration of that, the claws could provide a good bionic prototype for the design of bucket tooth. All of the following experiments were finished in the Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University. Handheld three-dimensional (3D) scanner (Handyscan700, Canada, Creaform company) was used to obtain the 3D point cloud of badger claw toe. This experiment was carried out in April 15, 2015. Due to the darker surface of badger claw toe, the toe had been sprayed with a layer of white power to enhance the results before scanning. The scanning results were imported into the reverse engineering software (Geomagic), and the contour curve of the longitudinal section of the badger claw toe was obtained through a series of processing. Then, the curve equation of the inner surface and the outer surface of the badger claw was obtained by curve fitting. Taking 80 type bucket tooth as a reference, the curve equations were applied to the design of bionic bucket tooth, and the bucket tooth model was established by utilizing the curves. Finite element analysis software (Abaqus) was implemented to analyze the mechanical

  3. 浙江省野生动物鼬獾狂犬病毒全基因组序列测定分析%Complete genome sequencing and analyses of rabies viruses isolated from wild animals (Chinese Ferret-Badger) in Zhejiang province

    Institute of Scientific and Technical Information of China (English)

    雷永良; 王晓光; 柳付明; 陈秀英; 叶碧峰; 梅建华; 兰进权; 唐青

    2009-01-01

    目的 测定浙江省分离的2株野生动物鼬獾狂犬病毒株全基因组序列,从分子水平进行遗传变异特征分析,了解狂犬病毒在浙江省的流行和变异情况.方法 RT-PCR测定鼬獾狂犬病毒株全基因组核苷酸序列,并进行基因序列和编码蛋白相似性比较及种系发生分析.结果 测序获得2株鼬獾狂犬病毒全基因组核苷酸序列信息:基因组全长11 923 nts,leader长58 nts,由5个编码区组成:NP(1353 nts)、PP(894 nts)、MP(609 nts)、GP(1575 nts)、LP(6386 nts),N-P-M-G间隔序列长2、5、5 nts;G-L基因间伪基因ψ长423 nts;trailer长70 nts.核酸BLAST及多序列比对显示,浙江省鼬獾狂犬病毒株全基因组序列的组成和结构符合弹状病毒科狂犬病毒属特征;鼬獾病毒株负链RNA基因组5个基因编码氨基酸的长度没有变异,编码区基因没有发生重组,编码蛋白仅表现较少的序列变化,多数只发生碱基的替代;中国病毒株之间特别是同种动物狂犬病毒之间各个基因区域核苷酸与氨基酸序列相似性最高,鼬獾狂犬病毒基因组序列相似性在氨基酸水平明显高于核苷酸水平,蛋白质编码基因的核苷酸变异大多属于同义突变.结论 鼬獾狂犬病毒与研究中选择的代表性疫苗株或者街毒株的变异位点和变异类型相似,多序列相似性比较和N基因种系发生分析显示,鼬獾狂犬病毒均属于基因1型,具有中国地域性特点,2株野生动物鼬獾狂犬病毒极有可能是存在于自然界中固有的街毒株.%Objective Based on sequencing the full-length genomes of two Chinese Ferret-Badger, we analyzed the properties of rabies viruses genetic variation in molecular level to get information on prevalence and variation of rabies viruses in Zhejiang,and to enrich the genome database of rabies viruses street swains isolated from Chinese wildlife.Methods Overlapped fragments were amplified by RT-PCR and full-length genomes were assembled to

  4. The 1948 international congress of genetics in Sweden: people and politics.

    Science.gov (United States)

    Bengtsson, Bengt O; Tunlid, Anna

    2010-07-01

    The International Congresses have played an important role in the history of genetics. The Eighth International Congress, which in 1948 was held in Sweden, celebrated the conclusion of the war against Nazism and many new decisive scientific advances. It also signaled a hardening of the fight against Lysenkoism, which was growing in strength in the Soviet Union. A rare document is available from the Congress--an amateur film made by a young delegate, Nils Nybom. With its help a living description can be given of the scientific and political melees in which the delegates were involved.

  5. Results of chemical decontamination of DOE`s uranium-enrichment scrap metal

    Energy Technology Data Exchange (ETDEWEB)

    Levesque, R.G.

    1997-02-01

    The CORPEX{reg_sign} Nuclear Decontamination Processes were used to decontaminate representative scrap metal specimens obtained from the existing scrap metal piles located at the Department of Energy (DOE) Portsmouth Gaseous Diffusion Plant (PORTS), Piketon, Ohio. In September 1995, under contract to Lockheed Martin Energy Systems, MELE Associates, Inc. performed the on-site decontamination demonstration. The decontamination demonstration proved that significant amounts of the existing DOE scrap metal can be decontaminated to levels where the scrap metal could be economically released by DOE for beneficial reuse. This simple and environmentally friendly process can be used as an alternative, or in addition to, smelting radiologically contaminated scrap metal.

  6. THE RESPONSE OF CORN FUTURES MARKETS TO AGRO-BIOTECHNOLOGY NEWS

    OpenAIRE

    2001-01-01

    Consumer perceptions of the potential negative side effects to the body and to the environment as well as consumer opinion regarding ethical issues of developing transgenic products has caused melee at times in the food marketing chain. This has prompted some firms, e.g., Frito Lay and Gerber, to publicly announce that grains and oilseeds produced using transgenic seed will not be used as an ingredient in the production of food. This research found little to support the notion that agro-biote...

  7. Predation on dormice in Italy

    Directory of Open Access Journals (Sweden)

    Dino Scaravelli

    1995-05-01

    Full Text Available Abstract The authors analyse available data on the impact of predators on Dormouse populations in Italy. Dormice are found in the diet of 2 snakes (Vipera berus and V. aspis, 2 diurnal birds of prey (Buteo buteo and Aquila chrysaetos, 6 owls (Tyto alba, Strix aluco, Asio otus, Athene noctua, Bubo bubo and Glaucidium passerinum and 9 mammals (Rattus rattus, Ursus arctos, Canis lupus, Vulpes vulpes, Martes martes, M. foina, Meles meles, Felis silvestris and Sus scrofa in a variable percentage of the prey taken. Only Dryomys nitedula was never encountered as a prey item. The most common prey is Muscardinus avellanarius. There are significative regional differences in predation between bioclimatic areas of the Italian peninsula. The contribution of studies on predation to knowledge of Myoxid distribution is discussed. Riassunto Predazione di Mioxidi in Italia - Sono analizzati i dati pubblicati sull'impatto dei predatori sulle popolazioni di Myoxidae in Italia. Myoxidae sono stati riscontrati nelle diete di 2 serpenti (Vipera berus e V. aspis, 2 rapaci diurni (Buteo buteo e Aquila chrysaetos, 6 notturni (Tyto alba, Strix aluco, Asio otus, Athene noctua, Bubo bubo e Glaucidium passerinum e 9 mammiferi (Rattus rattus, Ursus arctos, Canis lupus, Vulpes vulpes, Martes martes, M foina, Meles meles, Felis silvestris e Sus scrofa in percentuale variabile nella comunità di prede. Solo Dryomys nitedula non è mai stato incontrato come preda. La specie piu comunemente predata risulta Muscardinus avellanarius. Sono discusse le

  8. Topology of time-reversal invariant energy bands with adiabatic structure

    CERN Document Server

    Gat, Omri

    2015-01-01

    We classify the topology of bands defined by the energy states of quantum systems with scale separation between slow and fast degrees of freedom, invariant under fermionic time reversal. Classical phase space transforms differently from momentum space under time reversal, and as a consequence the topology of adiabatic bands is different from that of Bloch bands. We show that bands defined over a two-dimensional phase space are classified by the Chern number, whose parity must be equal to the parity of the band rank. Even-rank bands are equivalently classified by the Kane-Mele index, an integer equal to one half the Chern number.

  9. Decontamination, decommissioning, and vendor advertorial issue, 2006

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal (ed.)

    2006-07-15

    The focus of the July-August issue is on Decontamination, decommissioning, and vendor advertorials. Major articles/reports in this issue include: NPP Krsko revised decommissioning program, by Vladimir Lokner and Ivica Levanat, APO d.o.o., Croatia, and Nadja Zeleznik and Irena Mele, ARAO, Slovenia; Supporting the renaissance, by Marilyn C. Kray, Exelon Nuclear; Outage world an engineer's delight, by Tom Chrisopher, Areva, NP Inc.; Optimizing refueling outages with R and D, by Ross Marcoot, GE Energy; and, A successful project, by Jim Lash, FirstEnergy.

  10. DOD Acquisition Workforce Reduction Trends and Impacts

    Science.gov (United States)

    2016-06-07

    Record Equipment Office Supplies and Devices Books, Maps, and Other Publications Musical Instruments, Phonographs, and Home-Type Radios...Aequirition ■wo’Kjstwre* »eduction Trends and lapacta (»rojacfc Jto.*MJ!«503J.) mann you f*3* t’lä ’PippöSFfc’sni’fcy t* «»pwiftn* *i» W>* -flraÄ... Thomas F. Gimble Patricia A. Brannin John E. Meling Jack D. Snider John J. Dzik Neal J. Gause Susan J. Lippolis Louis F. Schleuger William F

  11. Electron dynamics in graphene with spin–orbit couplings and periodic potentials

    Science.gov (United States)

    Seshadri, Ranjani; Sen, Diptiman

    2017-04-01

    We use both continuum and lattice models to study the energy-momentum dispersion and the dynamics of a wave packet for an electron moving in graphene in the presence of spin–orbit couplings and either a single potential barrier or a periodic array of potential barriers. Both Kane–Mele and Rashba spin–orbit couplings are considered. A number of special things occur when the Kane–Mele and Rashba couplings are equal in magnitude. In the absence of a potential, the dispersion then consists of both massless Dirac and massive Dirac states. A periodic potential is known to generate additional Dirac points; we show that spin–orbit couplings generally open gaps at all those points, but if the two spin–orbit couplings are equal, some of the Dirac points remain gapless. We show that the massless and massive states respond differently to a potential barrier; the massless states transmit perfectly through the barrier at normal incidence while the massive states reflect from it. In the presence of a single potential barrier, we show that there are states localized along the barrier. Finally, we study the time evolution of a wave packet in the presence of a periodic potential. We discover special points in momentum space where there is almost no spreading of a wave packet; there are six such points in graphene when the spin–orbit couplings are absent.

  12. All That Fuss Just for Some Bloody Badgers?

    DEFF Research Database (Denmark)

    Sage, Daniel; Dainty, Andy; Tryggestad, Kjell

    2013-01-01

    in fleshing out some conceptual approaches via Actor-Network Theory through which infrastructure projects can start to address a series of overlooked questions. Some of these questions are firmly located within the realm of construction project management: are animals considered project risks or stakeholders......; is wildlife always simply a retrospective cost to a project or can it proactively benefit a project, can we ever manage wildlife, and if so how? These questions in turn lead us to engage with wider debates found in the margins between the social and biological sciences on the distinction between Nature......, or Animal Studies, have focussed far more on stable and contained sites, whether organisations like zoos, farms or laboratories, or other places like homes and parks. These largely ethnographic studies inevitably perhaps downplay the unplanned, unexpected and highly politically and ethically charged...

  13. All That Fuss Just for Some Bloody Badgers?

    DEFF Research Database (Denmark)

    Sage, Daniel; Dainty, Andy; Tryggestad, Kjell

    in fleshing out some conceptual approaches via Actor-Network Theory through which infrastructure projects can start to address a series of overlooked questions. Some of these questions are firmly located within the realm of construction project management: are animals considered project risks or stakeholders......; is wildlife always simply a retrospective cost to a project or can it proactively benefit a project, can we ever manage wildlife, and if so how? These questions in turn lead us to engage with wider debates found in the margins between the social and biological sciences on the distinction between Nature......, or Animal Studies, have focussed far more on stable and contained sites, whether organisations like zoos, farms or laboratories, or other places like homes and parks. These largely ethnographic studies inevitably perhaps downplay the unplanned, unexpected and highly politically and ethically charged...

  14. Band geometry, Berry curvature, and superfluid weight

    Science.gov (United States)

    Liang, Long; Vanhala, Tuomas I.; Peotta, Sebastiano; Siro, Topi; Harju, Ari; Törmä, Päivi

    2017-01-01

    We present a theory of the superfluid weight in multiband attractive Hubbard models within the Bardeen-Cooper-Schrieffer (BCS) mean-field framework. We show how to separate the geometric contribution to the superfluid weight from the conventional one, and that the geometric contribution is associated with the interband matrix elements of the current operator. Our theory can be applied to systems with or without time-reversal symmetry. In both cases the geometric superfluid weight can be related to the quantum metric of the corresponding noninteracting systems. This leads to a lower bound on the superfluid weight given by the absolute value of the Berry curvature. We apply our theory to the attractive Kane-Mele-Hubbard and Haldane-Hubbard models, which can be realized in ultracold atom gases. Quantitative comparisons are made to state of the art dynamical mean-field theory and exact diagonalization results.

  15. The effect of spin-orbit coupling in band structure of few-layer graphene

    Energy Technology Data Exchange (ETDEWEB)

    Sahdan, Muhammad Fauzi, E-mail: sahdan89@yahoo.co.id; Darma, Yudi, E-mail: sahdan89@yahoo.co.id [Department of Physics, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132 (Indonesia)

    2014-03-24

    Topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have protected conducting states on their edge or surface. This can be happened due to spin-orbit coupling and time-reversal symmetry. Moreover, the edge current flows through their edge or surface depends on its spin orientation and also it is robust against non-magnetic impurities. Therefore, topological insulators are predicted to be useful ranging from spintronics to quantum computation. Graphene was first predicted to be the precursor of topological insulator by Kane-Mele. They developed a Hamiltonian model to describe the gap opening in graphene. In this work, we investigate the band structure of few-layer graphene by using this model with analytical approach. The results of our calculations show that the gap opening occurs at K and K’ point, not only in single layer, but also in bilayer and trilayer graphene.

  16. Thermoelectric properties of magnetic configurations of graphene-like nanoribbons in the presence of Rashba and spin-orbit interactions

    Science.gov (United States)

    Wierzbicki, Michal

    2017-03-01

    In this paper we investigate the influence of spin-orbit interaction and two types of Rashba interaction (intrinsic and extrinsic) on magnetic and thermoelectric properties of graphene-like zigzag nanoribbons based on the honeycomb lattice. We utilize the Kane-Mele model with additional Rashba interaction terms. Magnetic structure is described by the electron-electron Coulomb repulsion reduced to the on-site interaction (Hubbard term) in the mean field approximation. We consider four types of magnetic configurations: ferromagnetic and antiferromagnetic with in-plane and out-of plane direction of magnetization. Firstly, we analyze the influence of extrinsic Rashba coupling on systems with negligible spin-orbit interaction, e.g. graphene of an appropriate substrate. Secondly, we discuss the interplay between spin-orbit and intrinsic Rashba interactions. This part is relevant to materials with significant spin-orbit coupling such as silicene and stanene.

  17. Crónica del 2º Congreso de Cirugía Veterinaria de la provincia de Salta

    Directory of Open Access Journals (Sweden)

    Lois, Angel Augusto

    2007-12-01

    Full Text Available Cómo definir éste correo... tal vez la mejor forma sea decir que no soy yo quien lo escribe sino mi corazón... y llega aquí porque gran parte de los personajes pertenecen a forovet o veterinaria.org. Así, entre otros fuimos invitados a disertar Carlitos Ciocca y su esposa Marisa, Adalberto Amato, Daniel Mudrovici, Victor Rosetti, Esteban Mele y yo. Entre los organizadores están Ricardo B. Bini y María Verónica Campos Vaca. También "aparecieron" Tommy Wheeler y Fernando "Tucu" Tomé, actualmente presidente del Colegio de Veterinarios de Tucumán. Una visita para mí "inesperada" fué la de Joemel Betancourt que está realizando una pasantía en nuestro país. Espero que lo disfruten y no renieguen por su extensión.

  18. Emergence of magnetic topological states in topological insulators doped with magnetic impurities

    Science.gov (United States)

    Tran, Minh-Tien; Nguyen, Hong-Son; Le, Duc-Anh

    2016-04-01

    Emergence of the topological invariant and the magnetic moment in topological insulators doped with magnetic impurities is studied based on a mutual cooperation between the spin-orbit coupling of electrons and the spin exchange of these electrons with magnetic impurity moments. The mutual cooperation is realized based on the Kane-Mele model in the presence of magnetic impurities. The topological invariants and the spontaneous magnetization are self-consistently determined within the dynamical mean-field theory. We find different magnetic topological phase transitions, depending on the electron filling. At half filling an antiferromagnetic topological insulator, which exhibits the quantum spin Hall effect, exists in the phase region between the paramagnetic topological insulator and the trivially topological antiferromagnetic insulator. At quarter and three-quarter fillings, a ferromagnetic topological insulator, which exhibits the quantum anomalous Hall effect, occurs in the strong spin-exchange regime.

  19. Z2 Invariants of Topological Insulators as Geometric Obstructions

    Science.gov (United States)

    Fiorenza, Domenico; Monaco, Domenico; Panati, Gianluca

    2016-05-01

    We consider a gapped periodic quantum system with time-reversal symmetry of fermionic (or odd) type, i.e. the time-reversal operator squares to -1. We investigate the existence of periodic and time-reversal invariant Bloch frames in dimensions 2 and 3. In 2 d, the obstruction to the existence of such a frame is shown to be encoded in a Z_2-valued topological invariant, which can be computed by a simple algorithm. We prove that the latter agrees with the Fu-Kane index. In 3 d, instead, four Z_2 invariants emerge from the construction, again related to the Fu-Kane-Mele indices. When no topological obstruction is present, we provide a constructive algorithm yielding explicitly a periodic and time-reversal invariant Bloch frame. The result is formulated in an abstract setting, so that it applies both to discrete models and to continuous ones.

  20. Classification, mechanism and surgical treatments for spinal canal cysts

    Institute of Scientific and Technical Information of China (English)

    Jianjun Sun

    2016-01-01

    A variety of cystic lesions may develop in spinal canal. These cysts can be divided into intramedullary, intradural, extradural, cervical, thoracic, lumbar, and sacral cysts according to anatomical presentation, as well as arachnoid, meningeal, perineural, juxtafacet, discal, neurenteric cysts, and cyst-like lesions according to different etiologies. Mechanisms of initiation and growth vary for different cysts, such as congenital, trauma, bleeding, inflammatory, instability, hydrostatic pressure, osmosis of water, secretion of cyst wall, and one-way-valve effect, etc. Up to now, many treatment methods are available for these different spinal canal cysts. One operation method can be applied in cysts with different types. On the other hand, several operation methods may be utilized in one type of cyst according to the difference of location or style. However, same principle should be obeyed in surgical treatment despite of difference among spinal canal cysts, given open surgery is melely for symptomatic cyst. The surgical approach should be tailored to the individual patient.

  1. Spin Hall and spin Nernst effects in graphene with intrinsic and Rashba spin-orbit interactions

    Institute of Scientific and Technical Information of China (English)

    Zhu Guo-Bao

    2012-01-01

    The spin Hall and spin Nernst effects in graphene are studied based on Green's function formalism.We calculate intrinsic contributions to spin Hall and spin Nernst conductivities in the Kane-Mele model with various structures.When both intrinsic and Rashba spin-orbit interactions are present,their interplay leads to some characteristics of the dependence of spin Hall and spin Nernst conductivities on the Fermi level.When the Rashba spin-orbit interaction is smaller than intrinsic spin-orbit coupling,a weak kink in the conductance appears.The kink disappears and a divergence appears when the Rashba spin-orbit interaction enhances.When the Rashba spin-orbit interaction approaches and is stronger than intrinsic spin-orbit coupling,the divergence becomes more obvious.

  2. Bottom Production

    CERN Document Server

    Nason, P; Schneider, O; Tartarelli, F; Vikas, P; Baines, J T M; Baranov, S P; Bartalini, P; Bay, A; Bouhova-Thacker, E; Cacciari, M; Caner, A; Coadou, Y; Corti, G; Damet, J; Dell'Orso, R; De Mello-Neto, J R T; Domenech, J L; Drollinger, V; Eerola, Paule Anna Mari; Ellis, Nick; Epp, B; Frixione, Stefano; Gadomski, S; Gavrilenko, I; Gennai, Simone; George, S; Ghete, V M; Guy, L P; Hasegawa, Y; Iengo, R; Jacholkowska, A; Jones, R; Kharchilava, A I; Kneringer, E; Koppenburg, P; Korsmo, M; Krämer, M; Labanca, N; Lehto, M H; Maltoni, F; Mangano, Michelangelo L; Mele, S; Nairz, A; Nakada, Tatsuya; Nikitin, N V; Nisati, A; Norrbin, E; Palla, Fabrizio; Rizatdinova, F K; Robins, S A; Rousseau, D; Sanchis-Lozano, M A; Shapiro, M; Sherwood, P; Smirnova, L; Smizanska, M; Starodumov, Andrei; Stepanov, N; Voft, R

    2000-01-01

    We review the prospects for bottom production physics at the LHC. Members of the working group who has contributed to this document are: J. Baines, S.P. Baranov, P. Bartalini, A. Bay, E. Bouhova, M. Cacciari, A. Caner, Y. Coadou, G. Corti, J. Damet, R. Dell'Orso, J.R.T. De Mello Neto, J.L. Domenech, V. Drollinger, P. Eerola, N. Ellis, B. Epp, S. Frixione, S. Gadomski, I. Gavrilenko, S. Gennai, S. George, V.M. Ghete, L. Guy, Y. Hasegawa, P. Iengo, A. Jacholkowska, R. Jones, A. Kharchilava, E. Kneringer, P. Koppenburg, H. Korsmo, M. Kraemer, N. Labanca, M. Lehto, F. Maltoni, M.L. Mangano, S. Mele, A.M. Nairz, T. Nakada, N. Nikitin, A. Nisati, E. Norrbin, F. Palla, F. Rizatdinova, S. Robins, D. Rousseau, M.A. Sanchis-Lozano, M. Shapiro, P. Sherwood, L. Smirnova, M. Smizanska, A. Starodumov, N. Stepanov, R. Vogt

  3. Flat edge modes of graphene and of Z 2 topological insulator

    Directory of Open Access Journals (Sweden)

    Mao Shijun

    2011-01-01

    Full Text Available Abstract A graphene nano-ribbon in the zigzag edge geometry exhibits a specific type of gapless edge modes with a partly flat band dispersion. We argue that the appearance of such edge modes are naturally understood by regarding graphene as the gapless limit of a Z 2 topological insulator. To illustrate this idea, we consider both Kane-Mele (graphene-based and Bernevig-Hughes-Zhang models: the latter is proposed for HgTe/CdTe 2D quantum well. Much focus is on the role of valley degrees of freedom, especially, on how they are projected onto and determine the 1D edge spectrum in different edge geometries.

  4. Controlled Topological Phases and Bulk-edge Correspondence

    Science.gov (United States)

    Kubota, Yosuke

    2017-01-01

    In this paper, we introduce a variation of the notion of topological phase reflecting metric structure of the position space. This framework contains not only periodic and non-periodic systems with symmetries in Kitaev's periodic table but also topological crystalline insulators. We also define the bulk and edge indices as invariants taking values in the twisted equivariant K-groups of Roe algebras as generalizations of existing invariants such as the Hall conductance or the Kane-Mele Z_2-invariant. As a consequence, we obtain a new mathematical proof of the bulk-edge correspondence by using the coarse Mayer-Vietoris exact sequence. As a new example, we study the index of reflection-invariant systems.

  5. Sufism Caricatured in Orhan Pamuk’s “The New Life”

    OpenAIRE

    Mansur, Visam

    2015-01-01

    Yeni Hayat, Sûfi deneyimi ile alay etmektedir. Tasavvufun temel konuları, romanda mevcut olarak görülmektedir. Osman, Canan ve meleği bulmayı umut ettiği yolculuğuna bir Sûfi Dervişi gibi başlar. Tasavvuf edebiyatında, kadın (aşk) varoluşu ve Tanrıyı simgelemektedir, ancak, Osman'ın Canan'a olan aşkı, ruhani olmaktan çok bedenseldir. Yolculuk ilerledikçe, Pamuk, Tanrıyı aramaktan çok intikam peşinde koşan bir yolcuyu alaycılıkla gösterir. Sûfi geleneğiyle alay etmek, yeni hayatın ar...

  6. Rabies in the Baltic States: Decoding a Process of Control and Elimination.

    Directory of Open Access Journals (Sweden)

    Emmanuelle Robardet

    2016-02-01

    Full Text Available Rabies is a fatal zoonosis that still causes nearly 70, 000 human deaths every year. In Europe, the oral rabies vaccination (ORV of red foxes (Vulpes vulpes was developed in the late 1970s and has demonstrated its effectiveness in the eradication of the disease in Western and some Central European countries. Following the accession of the three Baltic countries--Estonia, Latvia and Lithuania--to the European Union in 2004, subsequent financial support has allowed the implementation of regular ORV campaigns since 2005-2006. This paper reviews ten years of surveillance efforts and ORV campaigns in these countries resulting in the near eradication of the disease. The various factors that may have influenced the results of vaccination monitoring were assessed using generalized linear models (GLMs on bait uptake and on herd immunity. As shown in previous studies, juveniles had lower bait uptake level than adults. For the first time, raccoon dogs (Nyctereutes procyonoides were shown to have significantly lower bait uptake proportion compared with red foxes. This result suggests potentially altered ORV effectiveness in this invasive species compared to the red foxes. An extensive phylogenetic analysis demonstrated that the North-East European (NEE rabies phylogroup is endemic in all three Baltic countries. Although successive oral vaccination campaigns have substantially reduced the number of detected rabies cases, sporadic detection of the C lineage (European part of Russian phylogroup underlines the risk of reintroduction via westward spread from bordering countries. Vaccine induced cases were also reported for the first time in non-target species (Martes martes and Meles meles.

  7. Angry Badgers: The Protests in Wisconsin Have Helped Revive an Old Progressive State of Being: "Badgerness" Has Been Reinvented for the Twenty-First Century

    Science.gov (United States)

    Buhle, Mari Jo; Buhle, Paul

    2011-01-01

    The events in Wisconsin during February and March 2011 will long be considered remarkable in many ways. That includes the documenting of the protests. Perhaps at no previous time have so many journalists--paid and unpaid--gathered so much information about a protest movement and dispersed it in so many formats so quickly. Ubiquitous, touching, and…

  8. Study on Identification of 6 Wild Animal Fur Types%6种野生杂皮动物毛皮种类鉴别的研究

    Institute of Scientific and Technical Information of China (English)

    李维红; 吴建平

    2013-01-01

    The goal of the study is to determine the scale structure and elemental composition, and the cross-section microstructures by electron microscope of 6 kinds of wild animal fibers (Macro-pus, Lepus sinensis , Castor fiber, Meles meles , Canis lupus and Martes flavigula) . The results indicate that the physicochemical properties of fibers of 6 kinds of wild animals were significantly different (P<0. 05), in which the cross-section microstructures were different too. The height, the thickness and the rake angle of scale of hair fibers in the 6 kinds of wild miscellaneous leathe animals were different each other. To the same animal, the height, the thickness and the rake angle of scale were different between hair fibers and cashmere fibers. Both of the needle and wool contained 4 kinds of elements, such as C, O, S, Ca. The ratios of C and O were not significantly different. The Ca content of needle was higher than wool, but the content of S was lower. Based on that, it can identify the 6 kinds of animal fur category by microstructure characteristic of wool fiber.%以6种野生杂皮类动物毛纤维为试验材料,测定其鳞片结构及元素组成,并利用扫描电镜比较其超微结构特征.结果显示:6种动物的鳞片结构均有差异(P<0.05),其横截面特征各异.6种野生杂皮动物毛纤维的鳞片高度、鳞片厚度、鳞片翘角等指标各异,同一种动物的毛纤维和绒纤维的鳞片层的鳞片高度、鳞片厚度、鳞片翘角等指标也不尽相同;针、绒毛中均含C、O、S、Ca,而C、O的含量比例均差异不大,针毛所含的Ca较多,而S元素较少,绒毛所含的S较多,而Ca元素较少.可依据毛纤维超微结构特征进行6种动物毛皮种类的鉴别.

  9. Remedial Investigation Badger Army Ammunition Plant, Baraboo, Wisconsin. Volume 6. Appendix L

    Science.gov (United States)

    1991-01-01

    ug/g DBB-91-01 SB 25 QGD SVOC 612 Silane containing H.C. 3 ug/g DBB-91-02 SB 8 QGP SVOC 609 Unknown nitro aromatic amine 5 uL DBB-91-02 SB 8 QUP SVOC...621 Unknown nitro aromatic amine 4 u/gl DBB-91-02 SB 8 QGP SVOC 622 Unknown alkane @ C21 I DBB-91-02 SB 8 QOP SVOC 610 Unknown phthalate ester 0.5...This Agency concurs with the laboratory’s recommendation that the data for lot QGP are unacceptable due to low recoveries for at least two-thirds of the

  10. Remedial Investigation Badger Army Ammunition Plant, Baraboo, Wisconsin. Volume 1. Appendices A Through D

    Science.gov (United States)

    1991-01-01

    5753- 62 PROJECT NMAE: USATHAMA- MAAP PAGE / OFZ IDRILLING CONTRACTOR: LATNE-NORTNIvIEST DRILLER: Padr . K.rI .-9-7 JDATE STARTED I jqM COMPLETED METHOD...STPKEr" - P.O. BOX 9534. MAAISON, WIS. 53715 * TL. (600) 257-4046.... /• SAMPLE SOIL PROPERTIES CLASSIFICATION S L__S RICO ~l~ and Remarks * C LLP No. TYPe

  11. Remedial Investigation Badger Army Ammunition Plant, Baraboo, Wisconsin. Volume 7. Appendices M Through R

    Science.gov (United States)

    1991-01-01

    pregnancy , produced no significant embryotoxic effects and only infrequent slight expansion of ventricles of the cerebrum, renal pelves and urinary bladder...typical of an infectious agent with an associated active immune response rather than ethylbenzene exposure (NTP, 1989). This diagnosis was supported by... Nephropathy , increased NOAEL: 125 mg/kg/day 3000 1 4E-2 liver weights, hema- mg/kg/day tological alterations, LOAEL: 250 mg/kg/day and clinical effects Mouse

  12. Remedial Investigation Badger Army Ammunition Plant, Baraboo, Wisconsin. Volume 2. Appendices D.2 Through F

    Science.gov (United States)

    1991-01-01

    Well Number DNK Wed Numoer TypeofWell WafTableOtMrvanonWeHlElU LAeca Locauon Dat Wenl Instaled Pistanc Wel Is N/4 of l/4 of Seco _.._.., m -" V v D. R...Sump - 24.____________ LDr~bioe Dbisousioe ’Method of coautructung upper ealarge gol 06..51F TO Frain To dr~hiol Only. Tr,,. Covn(a imeaving, Calor

  13. Metagenomic analysis of the viral flora of pine marten and european badger feces

    NARCIS (Netherlands)

    J.M.A. van den Brand (Judith); J.L. van Leeuwen (Johan); C.M.E. Schapendonk (Claudia); J.H. Simon (James); B.L. Haagmans (Bart); A.D.M.E. Osterhaus (Albert); S.L. Smits (Saskia)

    2012-01-01

    textabstractA thorough understanding of the diversity of viruses in wildlife provides epidemiological baseline information about potential pathogens. Metagenomic analysis of the enteric viral flora revealed a new anellovirus and bocavirus species in pine martens and a new circovirus-like virus and g

  14. Remedial Investigation Badger Army Ammunition Plant, Baraboo, Wisconsin. Volume 3. Appendices G Through J

    Science.gov (United States)

    1991-01-01

    UNITS OpH PAPER i7, TURBID SPECFIC ONDUTIVIY urbas /m DOR PUMP RATE, GPM _______"_L__OTHER (SEE NOTES) EQUIPMEN’T DOCUMENTATION PERISTALTIC PUMP ISCO...12.000 -0.006 Q ~-w (n_ _ V)__ _- 6 000 0) 0) 0D 0 0 C? 9 C) (D WELL SPN-8&-:IC WELL 2I.AME.v.3125F, 92R..M LENGT0: !V, BORI , VAME:-1 .... TEST I ?•lE3 2

  15. Spatial analysis on school environment characteristics in mangrove management based on local wisdom (Case study at Lhokseumawe, Aceh)

    Science.gov (United States)

    Susiloningtyas, Dewi; Handayani, Tuty; Amalia, Naila; Nadhira, Arum Ira

    2017-01-01

    After 2004 tsunami, lots of efforts have been made, such as building school and distributing mangrove forests. This study examines the perception of teachers and students about mangrove management which spread in the administrative area of Lhokseumawe to become a reference then applied as local education regarding mangrove after tsunami disaster. This paper was based on primary data taken using questionnaire with a predetermined analysis unit to interview teachers and students in the study area. The result presented with quantitative and descriptive analysis. The result is of the total number of junior high schools in the city of Lhokseumawe as many as 41 Public Schools, Private and Religious School, there are 31 schools with priority for local wisdom education implemented mangrove. The result is classified with 3 class. The school’s first priority is schools with a melee, with mangroves mangrove poor condition. Educational priority 2 is schools with close proximity to the mangrove and mangrove condition with moderate levels of damage. Schools with third priority are school with a close range, and mangrove good condition. Priority I as many as 18 schools, 10 schools priority II and 3 school for priority with learning competency standards that differ from each other.

  16. The Fundamental Manifold of Spheroids

    CERN Document Server

    Zaritsky, D; Zabludoff, A I; Zaritsky, Dennis; Gonzalez, Anthony H.; Zabludoff, Ann I.

    2006-01-01

    We present a unifying empirical description of the structural and kinematic properties of all spheroids embedded in dark matter halos. We find that the stellar spheroidal components of galaxy clusters, which we call cluster spheroids (CSphs) and which are typically one hundred times the size of normal elliptical galaxies, lie on a "fundamental plane" as tight as that defined by ellipticals (rms in effective radius of ~0.07), but that has a different slope. The slope, as measured by the coefficient of the log(sigma) term, declines significantly and systematically between the fundamental planes of ellipticals, brightest cluster galaxies (BCGs), and CSphs.We attribute this decline primarily to a continuous change in M_e/L_e, the mass-to-light ratio within the effective radius r_e, with spheroid scale. The magnitude of the slope change requires that it arises principally from differences in the relative distributions of luminous and dark matter, rather than from stellar population differences such as in age and m...

  17. Dirac topological insulator in the dz2 manifold of a honeycomb oxide

    Science.gov (United States)

    Lado, J. L.; Pardo, V.

    2016-09-01

    We show by means of ab initio calculations and tight-binding modeling that an oxide system based on a honeycomb lattice can sustain topologically nontrivial states if a single orbital dominates the spectrum close to the Fermi level. In such a situation, the low-energy spectrum is described by two Dirac equations that become nontrivially gapped when spin-orbit coupling (SOC) is switched on. We provide one specific example but the recipe is general. We discuss a realization of this starting from a conventional spin-1/2 honeycomb antiferromagnet whose states close to the Fermi energy are dz2 orbitals. Switching off magnetism by atomic substitution and ensuring that the electronic structure becomes two-dimensional is sufficient for topologicality to arise in such a system. By deriving a tight-binding Wannier Hamiltonian, we find that the gap in such a model scales linearly with SOC, opposed to other oxide-based topological insulators, where smaller gaps tend to appear by construction of the lattice. We show that the quantum spin Hall state in this system survives in the presence of off-plane magnetism and the orbital magnetic field and we discuss its Landau level spectra, showing that our recipe provides a dz2 realization of the Kane-Mele model.

  18. Bona fide interaction-driven topological phase transition in correlated symmetry-protected topological states

    Science.gov (United States)

    He, Yuan-Yao; Wu, Han-Qing; You, Yi-Zhuang; Xu, Cenke; Meng, Zi Yang; Lu, Zhong-Yi

    2016-03-01

    It is expected that the interplay between nontrivial band topology and strong electron correlation will lead to very rich physics. Thus a controlled study of the competition between topology and correlation is of great interest. Here, employing large-scale quantum Monte Carlo simulations, we provide a concrete example of the Kane-Mele-Hubbard model on an AA-stacking bilayer honeycomb lattice with interlayer antiferromagnetic interaction. Our simulation identified several different phases: a quantum spin Hall insulator (QSH), an x y -plane antiferromagnetic Mott insulator, and an interlayer dimer-singlet insulator. Most importantly, a bona fide topological phase transition between the QSH and the dimer-singlet insulators, purely driven by the interlayer antiferromagnetic interaction, is found. At the transition, the spin and charge gap of the system close while the single-particle excitations remain gapped, which means that this transition has no mean-field analog and it can be viewed as a transition between bosonic symmetry-protected topological (SPT) states. At one special point, this transition is described by a (2 +1 )d O (4 ) nonlinear sigma model with exact S O (4 ) symmetry and a topological term at exactly Θ =π . The relevance of this work towards more general interacting SPT states is discussed.

  19. Bona fide interaction-driven topological phase transition in correlated SPT states

    Science.gov (United States)

    Meng, Zi Yang; He, Yuan-Yao; Wu, Han-Qing; You, Yi-Zhuang; Xu, Cenke; Lu, Zhong-Yi

    It is expected the interplay between non-trivial band topology and strong electron correlation will lead to very rich physics. Thus a controlled study of the competition between topology and correlation is of great interest. Here, employing large-scale quantum Monte Carlo simulations, we provide a concrete example of the Kane-Mele-Hubbard model on an AA stacking bilayer honeycomb lattice with inter-layer antiferromagnetic interaction. Our simulation identified several different phases: a quantum spin-Hall insulator (QSH), a xy-plane antiferromagnetic Mott insulator (xy-AFM) and an inter-layer dimer-singlet insulator (dimer-singlet). Most importantly, a bona fide topological phase transition between the QSH and the dimer-singlet insulators, purely driven by the inter-layer antiferromagnetic interaction is found. At the transition, the spin and charge gap of the system close while the single-particle excitations remain gapped, which means that this transition has no mean field analogue and it can be viewed as a transition between bosonic SPT states. At one special point, this transition is described by a (2+1)d O(4) nonlinear sigma model with exact SO(4) symmetry, and a topological term at theta=p. Relevance of this work towards more general interacting SPT states is discussed.

  20. Universalities of thermodynamic signatures in topological phases

    Science.gov (United States)

    Kempkes, S. N.; Quelle, A.; Smith, C. Morais

    2016-12-01

    Topological insulators (superconductors) are materials that host symmetry-protected metallic edge states in an insulating (superconducting) bulk. Although they are well understood, a thermodynamic description of these materials remained elusive, firstly because the edges yield a non-extensive contribution to the thermodynamic potential, and secondly because topological field theories involve non-local order parameters, and cannot be captured by the Ginzburg-Landau formalism. Recently, this challenge has been overcome: by using Hill thermodynamics to describe the Bernevig-Hughes-Zhang model in two dimensions, it was shown that at the topological phase transition the thermodynamic potential does not scale extensively due to boundary effects. Here, we extend this approach to different topological models in various dimensions (the Kitaev chain and Su-Schrieffer-Heeger model in one dimension, the Kane-Mele model in two dimensions and the Bernevig-Hughes-Zhang model in three dimensions) at zero temperature. Surprisingly, all models exhibit the same universal behavior in the order of the topological-phase transition, depending on the dimension. Moreover, we derive the topological phase diagram at finite temperature using this thermodynamic description, and show that it displays a good agreement with the one calculated from the Uhlmann phase. Our work reveals unexpected universalities and opens the path to a thermodynamic description of systems with a non-local order parameter.

  1. The Andreev reflection in a superconductor-normal metal junction of a doped correlated quantum spin Hall insulator

    Science.gov (United States)

    Chang, Yung-Yeh; Mou, Chung-Yu; Chung, Chung-Hou

    Andreev conductance across a normal metal-superconductor (N-S) junction of doped correlated quantum spin Hall insulator on honeycomb lattice is theoretically studied via Blonder-Tinkham-Klapwijk (BTK) formalism. The normal side is modeled by the doped Kane-Mele (KM) model. The superconducting side is a doped correlated KM t-J model, which has been shown to feature d+id'-wave spin singlet pairing. With increasing intrinsic spin-orbit coupling, the doped KM t-J system undergoes a topological phase transition from the chiral d-wave superconductivity to the Z2 spin-Chern superconducting phase with helical Majorana fermions at edges. We apply a local strain on the N-S interface to generate an effective Dirac-delta barrier and study the transport near the chiral-helical phase transition in the weak tunneling limit. We explore the Andreev conductance at the K and K' Dirac points, respectively and find the distinctive behaviors across the transition. Relevance of our results for the adatom-doped graphene is discussed. Reference: S.J. Sun, C.H. Chung, Y.Y. Chang, W.F. Tsai, and F.C. Zhang, arXiv:1506.02584.'' Y.Y. C. acknowledges the support from the MOST Grant No.104-2112-M-009-004-MY3 and the NCTS of Taiwan, R.O.C.

  2. Effect of the intrinsic spin-orbit interaction on the tunnel magnetoresistance in graphenelike nanoflakes

    Science.gov (United States)

    Weymann, Ireneusz; Krompiewski, Stefan

    2016-12-01

    This paper is devoted to examining the effect of intrinsic spin-orbit interaction on the possible appearance of edge magnetic moments and spin-dependent transport in graphenelike nanoflakes. In the case of finite-size graphenelike nanostructures it is shown that, on one hand, energetically the most advantageous configuration corresponds to magnetic moments located at zigzag edges with the in-plane antiferromagnetic inter-edge coupling. On the other hand, the tunnel magnetoresistance and the shot noise also have thoroughly been tested both for the in-plane configuration as well as for the out-of-plane one (for comparison reasons). Transport properties are described in terms of the mean-field Kane-Mele-Hubbard model with spin mixing correlations, supplemented by additional terms describing external leads, charging energy, and lead-nanostructure tunneling. The results show that Coulomb blockade stability spectra of graphenelike nanoflakes with ferromagnetic contacts provide information on both the intrinsic spin-orbit interaction and the expected edge magnetism.

  3. Dirac cones in the gapless interface states between two topological insulators

    Science.gov (United States)

    Takahashi, Ryuji; Murakami, Shuichi

    2012-02-01

    When two topological insulators are attached together, the states on the interface become gapped due to the hybridization between the surface states. We have shown that if the two topological insulators have the opposite signs for the Dirac velocities, there exist gapless interface states [1]. In the last March meeting we showed a general proof for the existence of the gapless states using the mirror Chern number, which fixes the chirality of the surface states. In this presentation, we report the dispersions of these gapless interface states. They are in general a collection of Dirac cones. For example, if the system has threefold rotational symmetry, the interface states have six Dirac cones. By using the Fu-Kane-Mele model, which is the tight-binding model on the diamond lattice with the spin-orbit interaction, we calculate the dispersion of this gapless interface states, and discuss the relationship with the mirror Chern number.[4pt] [1] R. Takahashi, S. Murakami, Phys. Rev. Lett. 107,166805 (2011).

  4. Quantum Monte Carlo study of strange correlator in interacting topological insulators

    Science.gov (United States)

    Wu, Han-Qing; He, Yuan-Yao; You, Yi-Zhuang; Xu, Cenke; Meng, Zi Yang; Lu, Zhong-Yi

    Distinguishing the nontrivial symmetry-protected topological (SPT) phase from the trivial insulator phase in the presence of electron-electron interaction is an urgent question to the study of topological insulators. In this work, we demonstrate that the strange correlator is a sensitive diagnosis to detect SPT states in interacting systems. Employing large-scale quantum Monte Carlo (QMC) simulations, we investigate the interaction-driven quantum phase transition in the Kane-Mele-Hubbard model. The transition from the quantum spin Hall insulator at weak interaction to an antiferromagnetic Mott insulator at strong interaction can be readily detected by the momentum space behavior of the strange correlator in single-particle, spin, and pairing sectors. The interaction e?ects on the symmetry-protected edge states in various sectors are well captured in the QMC measurements of strange correlators. Moreover, we demonstrate that the strange correlator is technically easier to implement in QMC and more robust in performance than other proposed numerical diagnoses for interacting topological states, as only static correlations are needed. The attempt in this work paves the way for using the strange correlator to study interaction-driven topological phase transitions.

  5. Synthesis of High Purity Sinterable Silicon Carbide Powder

    Science.gov (United States)

    1989-11-01

    Zettemyer (Ed.) Nucleation, Morral Dekker , New York. 5.4 M.J. McNallan, Combustion and Flames, 42, (1981). 5.5 F.F. Abraham, Homogeneous...Gems Fisher Fisher Badger Badger Badger Badger Badge Fisher Fisher Fisher Fisher Fisher Fisher Fisher Fisher Halmar Model 830-21-3

  6. 北京松山国家级自然保护区旅游线路周边野生动物分布规律%Distribution of wildlife along tourism routes in Beijing Songshan National Nature Reserve

    Institute of Scientific and Technical Information of China (English)

    沈洁滢; 崔国发; 刘润泽; 曲宏; 黄三祥; 吴记贵; 范雅倩

    2016-01-01

    To investigate the distribution of wildlife along the tourism routes in Beijing Songshan National Nature Reserve, 20 infrared cameras were set during November 2013 to November 2014. From the 1 558 pictures taken by the cameras, 35 species of wild animals were identified, including 12 mammals and 23 birds. The most common mammals captured were Sciurotamias davidianus, Arctonyx collaris, Meles meles and Prionailurus bengalensis, and the most common birds were Phasianus colchicus, Urocissa erythrorhyncha, Turdus naumanni and Myophonus caeruleus. Sus scrofa, a dangerous mammal, was pictured 9 times, mostly at night, which suggests a low threat to visitors’ safety in the daytime, but a potential danger to camping tourists. The photographic rate ( PR ) varied at different elevations and months. The PR at low elevation was higher than that in middle and high elevations. The PR reached 53. 64% in September and dropped to 3. 71% in December. Besides, the frequency of occurrences differed in species and time bucket. The results indicate that the wild animals distribute in certain rules along the tourism routes. This paper also discusses the efficacy of monitoring wildlife resources around tourist lines by infrared cameras, which contributes to the tourists’ security assurance and improves the ability of early warning and control.%利用红外相机对北京松山国家级自然保护区旅游线路周边野生动物分布规律进行调查。于2013年11月至2014年11月,在20个位点布设红外相机,拍摄到有效照片1558张,共鉴定出物种35种,其中兽类12种、鸟类23种。兽类中拍摄率最高的前4种分别为岩松鼠、猪獾、狗獾、豹猫,鸟类中拍摄率最高的前4种分别为雉鸡、红嘴蓝鹊、斑鸫、紫啸鸫。拍摄到危险野生动物野猪9次,且多在傍晚和夜间,基本不会对白天活动的游客安全构成威胁,但对露营的游客构成潜在危险。红外相机在不同海拔区间以及不同月份的拍

  7. Numerical methods and applications in many fermion systems

    Energy Technology Data Exchange (ETDEWEB)

    Luitz, David J.

    2013-02-07

    This thesis presents results covering several topics in correlated many fermion systems. A Monte Carlo technique (CT-INT) that has been implemented, used and extended by the author is discussed in great detail in chapter 3. The following chapter discusses how CT-INT can be used to calculate the two particle Green's function and explains how exact frequency summations can be obtained. A benchmark against exact diagonalization is presented. The link to the dynamical cluster approximation is made in the end of chapter 4, where these techniques are of immense importance. In chapter 5 an extensive CT-INT study of a strongly correlated Josephson junction is shown. In particular, the signature of the first order quantum phase transition between a Kondo and a local moment regime in the Josephson current is discussed. The connection to an experimental system is made with great care by developing a parameter extraction strategy. As a final result, we show that it is possible to reproduce experimental data from a numerically exact CT-INT model-calculation. The last topic is a study of graphene edge magnetism. We introduce a general effective model for the edge states, incorporating a complicated interaction Hamiltonian and perform an exact diagonalization study for different parameter regimes. This yields a strong argument for the importance of forbidden umklapp processes and of the strongly momentum dependent interaction vertex for the formation of edge magnetism. Additional fragments concerning the use of a Legendre polynomial basis for the representation of the two particle Green's function, the analytic continuation of the self energy for the Anderson Kane Mele Model as well as the generation of test data with a given covariance matrix are documented in the appendix. A final appendix provides some very important matrix identities that are used for the discussion of technical details of CT-INT.

  8. Bulk–edge correspondence, spectral flow and Atiyah–Patodi–Singer theorem for the Z2-invariant in topological insulators

    Directory of Open Access Journals (Sweden)

    Yue Yu

    2017-03-01

    Full Text Available We study the bulk–edge correspondence in topological insulators by taking Fu–Kane spin pumping model as an example. We show that the Kane–Mele invariant in this model is Z2 invariant modulo the spectral flow of a single-parameter family of 1+1-dimensional Dirac operators with a global boundary condition induced by the Kramers degeneracy of the system. This spectral flow is defined as an integer which counts the difference between the number of eigenvalues of the Dirac operator family that flow from negative to non-negative and the number of eigenvalues that flow from non-negative to negative. Since the bulk states of the insulator are completely gapped and the ground state is assumed being no more degenerate except the Kramers, they do not contribute to the spectral flow and only edge states contribute to. The parity of the number of the Kramers pairs of gapless edge states is exactly the same as that of the spectral flow. This reveals the origin of the edge–bulk correspondence, i.e., why the edge states can be used to characterize the topological insulators. Furthermore, the spectral flow is related to the reduced η-invariant and thus counts both the discrete ground state degeneracy and the continuous gapless excitations, which distinguishes the topological insulator from the conventional band insulator even if the edge states open a gap due to a strong interaction between edge modes. We emphasize that these results are also valid even for a weak disordered and/or weak interacting system. The higher spectral flow to categorize the higher-dimensional topological insulators is expected.

  9. Perspective și probleme ale teoriei prototipului

    Directory of Open Access Journals (Sweden)

    Dirk Geeraerts

    2016-08-01

    Full Text Available În paralel cu cercetările întreprinse asupra aplicării teoriei prototipului la chestiuni privind schimbarea semantică (concretizate, în cele din urmă, în apariția monografiei mele din 1997, Diachronic Prototype Semantics [Semantica diacronică a prototipului], mi-am îndreptat în cîteva rînduri atenția asupra clarificării teoretice a noțiunii de prototipicitate ca atare (și a noțiunii înrudite de polisemie. În acest articol încerc să introduc o oarecare sistematicitate în multiplele utilizări ale noțiunii de „prototipicitate”, trasând o distincție între două axe de clasificare încrucișată. În primul rînd, disting între două fenomene structurale cruciale ce stau la baza efectelor prototipicității: flexibilitatea (adică absența unor granițe și demarcații precise și saliența (adică diferențele de dominanță structurală. În al doilea rînd, sugerez că ambele fenomene de prototipicitate pot fi identificate la un nivel intensional (nivelul definițiilor și la un nivel extensional (nivelul referenților. Clasificarea încrucișată realizată în acord cu cele două axe evidențiază patru tipuri principale de efecte ale prototipicității.

  10. SOME FEATURES OF THE COMBAT TRAINING JAPANESE TROOPS AT THE END OF XIX – EARLY XX CENTURIES

    Directory of Open Access Journals (Sweden)

    Alexander V. TSOKUR

    2015-01-01

    Full Text Available The article describes some of the features of Japanese combat training of troops and their display in the wars of the late XIX – early XX century in connection with using of bladed weapons. Despite decreasing one’s role in modern warfare, much attention was paid to training bayonet fighting techniques and fencing swords. A British officer, F. Norman after a long learning Japanese fencing wrote about considerable superiority of Japanese swords and fencing systems. During the Russian-Japanese war 1904‒1905 there were widely used bayonets and sabres (swords, broadswords in the melee, but more often the bayonets were used. Most memoirs celebrate excellence in the Russian bayonet attacks. The fall of the role of the cavalry is not only sharply increased role of firearms, but also with the preparation of engineering positions. Combat training of reserve forces in Japan and Russia also differ significantly. According to General A. Kuropatkin, the Japanese reserve units sometimes were fighting better than the field troops. There is widely spread opinion in the scientific literature that the Japanese soldier was physically strong and hardy, brought on unquestioning fulfillment of all the requirements of command. Military reporter D. Yanchevetsky, who observed the actions of the Japanese troops during the march to Beijing in 1900, wrote that the Japanese are brave in the battle, but not endurance in the campaigns. They are dangerous and impetuous only in the first impact, but quickly weakened, and for the next blow they did not have enough strength and energy. They were pass long distance on the march and were ready to fight at the place of arrival. 

  11. CAT: the INGV Tsunami Alert Center

    Science.gov (United States)

    Michelini, A.

    2014-12-01

    After the big 2004 Sumatra earthquake, the tsunami threat posed by large earthquakes occurring in the Mediterranean sea was formally taken into account by many countries around the Mediterranean basin. In the past, large earthquakes that originated significant tsunamis occurred nearly once per century (Maramai et al., 2014, Annals of Geophysics). The Intergovernmental Oceanographic Commission of UNESCO (IOC-UNESCO) received a mandate from the international community to coordinate the establishment of the ICG/NEAMTWS (http://neamtic.ioc-unesco.org) through Resolution IOC-XXIII-14. Since then, several countries (France, Turkey, Greece) have started operating as candidate Tsunami Watch Provider (cTWP) in the Mediterranean. Italy started operating as cTWP on October 1st, 2014. The Italian cTWP is formed by INGV ("Istituto Nazionale di Geofisica e Vulcanologia)", DPC ("Dipartimento di Protezione Civile") and ISPRA ("Istituto Superiore per la Protezione e la Ricerca Ambientale"). INGV is in charge of issuing the alert for potentially tsunamigenic earthquakes, ISPRA provides the sea level recordings and DPC is in charge of disseminating the alert. INGV established the tsunami alert center (CAT, "Centro di Allerta Tsunami") at the end of 2013. CAT is co-located with the INGV national seismic surveillance center operated since many years. In this work, we show the technical and personnel organization of CAT, its response to recent earthquakes, and the new procedures under development for implementation. (*) INGV-CAT WG: Amato A., Basili R., Bernardi F., Bono A., Danecek P., De Martini P.M., Govoni A., Graziani L., Lauciani V., Lomax, A., Lorito S., Maramai A., Mele F., Melini D., Molinari I., Nostro C., Piatanesi A., Pintore S., Quintiliani M., Romano F., Selva J., Selvaggi G., Sorrentino D., Tonini R.

  12. Effective theory of rotationally faulted multilayer graphene

    Science.gov (United States)

    Kindermann, Markus

    2012-02-01

    The crystal structure of graphene multilayers with an interlayer twist is characterized by Moir'e patterns with various commensurabilities. Also the electronic structure of the material, which grows for instance epitaxially on SiC, is remarkably rich. In this talk an effective low-energy description of such multilayers will be discussed. In certain limits the theory reduces to a (single-layer) Dirac model with space-dependent potentials and mass term. The consequences of this theory will be explored and comparison with experiment will be made. The discussion of experimental consequences will focus on the Landau quantization in a magnetic field, where much experimental data is available. For instance, a spatially modulated splitting of the zeroth Landau level in the material has been observed through scanning tunneling spectroscopy [1]. That splitting finds a natural explanation in the space-dependent mass term of the presented theory [2]. Also a large low-field splitting of higher Landau levels recently observed in graphene multilayers [3] will be shown to follow from that theory. Finally, a theoretically expected [4] amplitude modulation of the Landau level wavefunctions on the top layer of the material will be discussed. [4pt] [1] D. L. Miller, K. D. Kubista, G. M. Rutter, M. Ruan, W. A. de Heer, M. Kindermann, P. N. First, and J. A. Stroscio, Nature Physics 6, 811 (2010). [0pt] [2] M. Kindermann and P. N. First, Phys. Rev. B 83, 045425 (2010). [0pt] [3] Y. J. Song, A. F. Otte, Y. Kuk, Y. Hu, D. B. Torrance, P. N. First, W. A. de Heer, H. Min, S. Adam, M. D. Stiles, A. H. MacDonald, and J. A. Stroscio, Nature 467, 185 (2010). [0pt] [4] M. Kindermann and E. G. Mele, Phys. Rev. B 84, 161406(R) (2011).

  13. The strategic approach of the corporative social responsibility: a review of academic literature

    Directory of Open Access Journals (Sweden)

    Daniela Toro

    2007-07-01

    Full Text Available Even Since the 1970`s several studies have been carried out in order to identify the relationship between Corporate Social Responsibility (CSR and financial profit. The results have not been homogeneous and so far no definitive conclusion has been reached. Recently a group of researchers have linked CSR with business strategy and state that what distinguishes those cases in which CSR is related to a positive financial performance is its consideration and design as a social strategy closely related and embedded in the business strategy. The aim of this research is to review some of the authors that have contributed with their researches to this field. CSR has been approached form the academic and the business field and its definition vary from one view to other. Even inside the academy definitions are not alike. According to Garriga and Mele (2004 there are four major areas in which CSR theories may be categorized: instrumental, political, integrative and ethical. And even though this research is exhaustive and includes most of the different theories and approaches I consider it might be useful to pay special attention to a field that is gaining in importance due to the number of researches related to it. That is the consideration of CSR as a social strategy capable of generating value to the firm and aligned and coherent with the business strategy. I will intend to review the contributions done in the academic field by a group of authors: Burke y Logsdon (1996, Husted y Allen (2000 y 2001 and McWilliams y Siegel (2001 and based on their contributions I will intend to develop a preliminary theoretical model for the application of social strategies within the firm and then introduce a series of propositions that look to understand and extend the relationship between both type of strategies.

  14. ALGORITM PENTRU DETERMINAREA STRATEGIILOR OPTIME STAŢIONARE ÎN PROBLEMELE STOCASTICE DE CONTROL OPTIMAL DISCRET PE REŢELE DECIZIONALE CU MULTIPLE CLASE RECURENTE

    Directory of Open Access Journals (Sweden)

    Maria CAPCELEA

    2015-12-01

    Full Text Available Este elaborat şi argumentat teoretic un algoritm eficient pentru determinarea strategiilor optime staţionare în proble-mele stocastice de control optimal discret cu perioada de dirijare infinită, definite pe reţele decizionale cu multiple clase recurente, în care este aplicat criteriul de optimizare a combinaţiei convexe a costurilor medii în clasele recurente. Sunt examinate probleme în care costurile de tranziţie între stările sistemului dinamic şi probabilităţile de tranziţie, definite în stările necontrolabile, sunt constante independente de timp. Algoritmul elaborat este bazat pe modelul de programare liniară pentru determinarea strategiilor optime în problemele de control definite pe reţele decizionale perfecte [3,4].AN ALGORITHM FOR DETERMINING STATIONARY OPTIMAL STRATEGIES FOR STOCHASTIC DISCRETE OPTIMAL CONTROL PROBLEMS DEFINED ON NETWORKS WITH MULTIPLE RECURRENT CLASSESAn efficient algorithm for determining optimal stationary strategies for the stochastic discrete optimal control problems with infinite time horizon is developed and theoretically justified. The problems are defined on decision networks with multiple recurrent classes. The average costs convex combination optimization criterion is applied. We examine problems in which the costs of transitions between the states of the dynamic system and transition probabilities, defined on the uncontrollable states, are constants independent on time. The algorithm is based on the linear programming model developed for determining optimal strategies in control problems defined on perfect decision networks [3,4].

  15. Bulk-edge correspondence, spectral flow and Atiyah-Patodi-Singer theorem for the Z2-invariant in topological insulators

    Science.gov (United States)

    Yu, Yue; Wu, Yong-Shi; Xie, Xincheng

    2017-03-01

    We study the bulk-edge correspondence in topological insulators by taking Fu-Kane spin pumping model as an example. We show that the Kane-Mele invariant in this model is Z2 invariant modulo the spectral flow of a single-parameter family of 1 + 1-dimensional Dirac operators with a global boundary condition induced by the Kramers degeneracy of the system. This spectral flow is defined as an integer which counts the difference between the number of eigenvalues of the Dirac operator family that flow from negative to non-negative and the number of eigenvalues that flow from non-negative to negative. Since the bulk states of the insulator are completely gapped and the ground state is assumed being no more degenerate except the Kramers, they do not contribute to the spectral flow and only edge states contribute to. The parity of the number of the Kramers pairs of gapless edge states is exactly the same as that of the spectral flow. This reveals the origin of the edge-bulk correspondence, i.e., why the edge states can be used to characterize the topological insulators. Furthermore, the spectral flow is related to the reduced η-invariant and thus counts both the discrete ground state degeneracy and the continuous gapless excitations, which distinguishes the topological insulator from the conventional band insulator even if the edge states open a gap due to a strong interaction between edge modes. We emphasize that these results are also valid even for a weak disordered and/or weak interacting system. The higher spectral flow to categorize the higher-dimensional topological insulators is expected.

  16. Effects of Slow-stroke Back Massage on Chemotherapy-induced Nausea and Vomiting in the Pediatrics with Acute Leukemia: a Challenge of Controlling Symptoms

    Directory of Open Access Journals (Sweden)

    Mojtaba Miladinia

    2015-12-01

    Full Text Available Introduction Nausea and vomiting are the most common side effects of chemotherapy in the pediatrics with cancer which affect their quality of life. Use of some methods of complementary medicine in leukemia patients is problematic. Because, leukemia patients are at risk of infection and bleeding, therefore the use of acupressure, acupuncture, and deep massage can be risky in these patients. Slow- stroke back massage is applied on the surface of body, so does not have complications. No study has addressed the effect of massage therapy on chemotherapy-induced nausea and vomiting in pediatrics with acute leukemia in the world.  Material and methods This study was a two-group randomized controlled trial (RCT, double blind and repeated measures design. In this RCT, 45 school age children with acute leukemia were placed in the massage and control groups. Before start of the study, at the day of chemotherapy administration (day 1th, only nausea and vomiting were measured. Then during 6 days next (day 2 through 7, the intervention group received 5-minutes Super Smash Bros. Melee (SSBM, immediately before start of each session of chemotherapy. Nausea was measured during chemotherapy, 0.5 h and 3 h after each session of chemotherapy in the two groups. Also vomiting was recorded during 24 h after each session of chemotherapy. Repeated measures ANOVA, Chi-square, and t-test were used for analysis. Results Most of pediatrics were male (58.13%, and suffered from Acute myeloid leukemia (AML (81.7%. The repeated measure analysis showed that in the intervention group, the SSBM reduced progressive mean of nausea severity and frequency of vomit over time. While, this side effects have slightly increased over time in the control group. Conclusion The results of this study are suggesting that SSBM, as a non-pharmacologic, easy and safe method, is effective in controlling Chemotherapy-induced nausea and vomiting (CINV in the pediatrics with acute leukemia.

  17. Hydrologic and biotic characteristics of grazed and ungrazed and watersheds of the Badger Wash basin in western Colorado, 1953-58

    Science.gov (United States)

    Lusby, Gregg C.; Lusby, George C.; Turner, George T.; Thompson, J.R.; Reid, Vincent H.

    1964-01-01

    A comprehensive study of the hydrologic and biotic characteristics of small drainage basins on the Colorado Plateau and the effect of grazing on these characteristics vas begun in 1953. This report presents data obtained during the first 5 years of the proposed 20-year study. Periodic observations were made at permanent transects in 8 paired fenced and unfenced watersheds to characterize plant and ground cover, determine degree of use by livestock and measure changes in watershed cover. Results after 5 years of study indicate that changes in watershed cover have been relatively small on both grazed and ungrazed areas. Changes that did take place were mainly on shale and mixed type .soil. Ground-cover index on mixed type soil was significantly higher, 4 percent, on ungrazed ,areas than on grazed areas at the end of 5 years. Plot records were obtained using the Rocky Mountain Infiltrameter at 12 plots in each of the 8 study watersheds to determine the effect of livestock exclusion on infiltration and sheet erosion. Infiltration rates for the last 20 minutes of both the wet .and dry runs were significantly higher in 1958 than they were 5 years before, but this difference was not associated with treatment because rates on both grazed and ungrazed plots increased about .the same amount. The initial water-absorbing capacity increased significantly on ungrazed plots. No change in erosion rates was observed. Rainfall was variable and below normal during 4 of the first 5 years of study. Runoff was produced mainly by thunderstorms during the summer months and was characterized by high rates of flow for short periods. Comparison of runoff in grazed and ungrazed watersheds indicates a change in the relation between precipitation and runoff because of exclusion of livestock. More sediment per unit area was produced during the 5 years of study from grazed .areas than from ungrazed areas. No definite trend in small mammal population on grazed and ungrazed water- sheds has yet been determined. Results of preliminary studies on rabbit population indicates that rabbits prefer to inhabit ungrazed areas, but populations were judged to be not high in any area.

  18. Adaptation of a Chinese ferret badger strain of rabies virus to high-titered growth in BHK-21 cells for canine vaccine development.

    Science.gov (United States)

    Liu, Ye; Zhang, Shoufeng; Zhang, Fei; Hu, Rongliang

    2012-12-01

    Rabies virus strain JX08-45CC was derived from a Chinese isolate (JX08-45) by serial passage in the BHK-21 cell line, reaching a titer of 10(8) TCID(50)/mL. JX08-45CC produced rabies in adult mice but was nonpathogenic in dogs after intramuscular injection. A comparison of the entire genomes of JX08-45 and JX08-45CC led to the identification of 17 nucleotide substitutions, resulting in seven amino acid changes in the mature G and L proteins. The immunogenicity of β-propiolactone-inactivated JX08-45CC was similar to the immunogenicity of the live vaccine strains widely used in China. The inactivated vaccine induced antibody responses for more than 6 months and provided full protection from an intramuscular challenge in dogs. JX08-45CC has excellent potential for development as an inactivated vaccine for dogs in China.

  19. The Centre for Veterinary Epidemiology and Risk Analysis, The TB Diagnostics and Immunology Research Centre, The Badger Vaccine Project: Biennial Report, 2012-13

    OpenAIRE

    More, Simon John; Collins, Daniel M.

    2014-01-01

    The UCD Centre for Veterinary Epidemiology and Risk Analysis (UCD CVERA) is the national resource centre for veterinary epidemiology in Ireland, located within the UCD School of Veterinary Medicine at University College Dublin. The Centre was initially established as the Tuberculosis Investigation Unit, but in recent years has broadened its remit to cover a wide range of international, national and local animal health matters, including: - Epidemiological support for the control and eradicati...

  20. The Centre for Veterinary Epidemiology and Risk Analysis, The TB Diagnostics and Immunology Research Centre, The Badger Vaccine Project: Biennial Report, 2010-11

    OpenAIRE

    More, Simon John; Collins, Daniel M.

    2012-01-01

    The UCD Centre for Veterinary Epidemiology and Risk Analysis (UCD CVERA) is the national resource centre for veterinary epidemiology in Ireland, located within the UCD School of Veterinary Medicine at University College Dublin. The Centre was initially established as the Tuberculosis Investigation Unit, but in recent years has broadened its remit to cover a wide range of international, national and local animal health matters, including: - Epidemiological support for the control and eradicati...

  1. The Centre for Veterinary Epidemiology and Risk Analysis, The TB Diagnostics and Immunology Research Centre, The Badger Vaccine Project. Biennial Report, 2014-15

    OpenAIRE

    More, Simon John; Collins, Daniel M.

    2016-01-01

    The UCD Centre for Veterinary Epidemiology and Risk Analysis (UCD CVERA) is the national resource centre for veterinary epidemiology in Ireland, located within the UCD School of Veterinary Medicine at University College Dublin. The Centre was initially established as the Tuberculosis Investigation Unit, but in recent years has broadened its remit to cover a wide range of international, national and local animal health matters, including: - Epidemiological support for the control and eradicati...

  2. La imposibilidad de medición en economía mediante los métodos estadísticos

    Directory of Open Access Journals (Sweden)

    Rodríguez Ruiz, Julián

    2009-01-01

    Full Text Available RESUMEN La imposibilidad de medición en economía se refiere 1 a la medición mediante los métodos estadísticos. 2 a las relaciones, no a los elementos de las relaciones. El hecho básico estaría en la diversidad de valores obtenidos en las mediciones. Históricamente, habrían existido tan solo los Agricultural Economists, y considerando a la Cowles Comisión, fuera de la medición económica. Moore en (1908 hablaba de un Complemento de la Economía Pura en la Estadística y debiera haber hablado de un sustituto. La explicación se basa en la naturaleza agregada de los datos y atemporal de la Teoría de las Probabilidades, base de los métodos estadísticos e inductivos. Se utilizan los datos del mercado del azúcar, de Schultz, un Agricultural Economist, para ilustrar el hecho básico.Se defiende como conclusión, la fundamentación de la medición no en la Probabilidad, sino en planteamientos basados en movimientos sistemáticos en el tiempo como tendencias y ciclos.ABSTRACT The impossibility of measurement by statistical methods of economic phenomena as it is defended by Moore (1908, as statistics as a Complement of Pure Economics is concerned with the economic relations, no with phenomena itself. The conclusion seems to be supported upon the different values resulting of measurements. Historically the Agricultural Economists contended if the causal and Statistical laws were the same thing. Explanation of the impossibility of measurement is placed on the aggregated nature of data and upon the tímeles nature of satistics. The final conclusion relates to the probabilistic hipótesis to approach economic relations, instead of a systematic one.

  3. Pembelajaran Matematika Konstruktivistik Berbasis Humanistik Berbantuan E-Learning Pada Materi Segitiga Kelas VII

    Directory of Open Access Journals (Sweden)

    Amidi Amidi

    2014-10-01

    Full Text Available Penelitian ini bertujuan untuk meningkatkan pemahaman konsep dan memperbaiki sikap belajar peserta didik melalui pengembangan perangkat pembelajaran matematika kons-truktivis berbasis humanistik berbantuan e-learning. Penelitian ini merupakan penelitian pe-ngembangan dengan model 4D yang diadaptasi menjadi 4P, yaitu pendefinisian (analisis awal-akhir, analisis peserta didik, analisis materi, analisis tugas, dan merumuskan tujuan pembelajaran khusus, perancangan (penyusunan kriteria tes, pemilihan media, pemilihan format, dan desain awal, pengembangan (validasi ahli dan uji coba, dan penyebaran. Ada-pun perangkat yang dikembangkan adalah Silabus, RPP, LKPD, dan E-learning. Teknik pe-ngumpulan data pada penelitian ini adalah dengan metode tes, dokumentasi, observasi, dan angket. Berdasarkan analisis data dapat disimpulkan bahwa keterampilan proses dan sikap belajar peserta didik lebih baik, karena kedua variabel secara bersama memberikan pengaruh posi-tif terhadap prestasi belajar peserta didik. Rata-rata prestasi belajar kelas eksperimen mele-bihi batas KKM, sehingga rata-rata prestasi belajar kelas eksperimen lebih baik dari kelas kontrol. Sehingga dapat disimpulkan pembelajaran efektif. The purpose of this research was improving the understanding of the concept and improving the attitudes of learners through the development of software-based humanistic constructivist mathematics assisted e-learning. The research is a development research using 4D model, which is modified to 4P model, namely defining (initial-end analysis, students analysis, material analysis, assignment analysis, and formulate particular learning purpose, designing (formulate test criteria, choose media, chose format, and initial design, developing (validation by expert and try out, and dissemination. The devices develop are Syllabus, Lesson Plan, Worksheet, and E-learning. The data are collected though are test method, documentation, observation, and questionnaire. Based on

  4. Searching for cutaneous leishmaniasis in tribals from Kerala, India

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    S M Simi

    2010-01-01

    Full Text Available Background : In India, indigenous cases of cutaneous leishmaniasis (CL are mainly confined to the northwestern region. But now, more and more case reports are coming in from other parts of India. In January 2009, a 26-year-old lady residing in a forest area in Thiruvananthapuram district of Kerala State presented with bluish red nodules on her upper extremities, of six months duration, which was clinically more in favor of cutaneous leishmaniasis. She had never gone out of the district of Thiruvananthapuram in her life. Aim : To investigate whether the patient hails from a new endemic focus of cutaneous leishmaniasis. Setting and Design : An epidemiological investigation in the form of a survey was carried out in March 2009 by a multidisciplinary team among 63 persons residing in the Mele Aamala and Aayiramkala forest tribal settlements in Kuttichal Panchayat of Thiruvananthapuram district. Material and Methods : History taking and clinical examination of 38 persons in the area with special consideration to skin lesions was undertaken. Microbiological and histopathological examination of the skin lesions was done. Breeding places of sand fly and possible reservoirs of Leishmania were also simultaneously investigated. Statistical analysis used : The data obtained was tabulated as frequency and percentage. Chi-square test was done to find out the statistical significance of differences in distributions. Results : Out of the 38 persons examined, active lesions were found in 12 persons and six had healed lesions. Tissue samples were obtained from seven out of the 12 suspected cases. Four of them showed Leishman Donovan (LD bodies in tissue smears. Out of the cultures taken from three patients, one showed promastigote forms in Novy McNeal Nicolle (NNN medium. Histopathological study was done in five patients and two patients had LD bodies, one had epithelioid cell granuloma and the other two had mixed infiltrate with predominantly macrophages. All

  5. Zora’s Politics: A Brief Introduction

    Directory of Open Access Journals (Sweden)

    Ernest Julius Mitchell II

    2013-09-01

    Full Text Available In his introduction to reading Zora Neale Hurston’s politics, Mitchell argues that contemporary scholarship has misread Hurston in significant ways, distorting Hurston’s work and reputation to serve contesting political agendas; thus, in recent years, she has been associated with “a bewildering array of affiliations: republican, libertarian, radical democrat, reactionary conservative, black cultural nationalist, anti-authoritarian feminist, and woman-hating protofascist.” Recuperating Hurston from this impossible political melee of labels, Mitchell argues, requires a careful reading of Hurston’s work dating from her earliest pieces in the late 1920s, as well as surveying her many yet to be published manuscripts and letters; it requires recognition of the transnational and comparative lens through which she reported on political maneuvers and military histories, as well as reading not only her strong criticisms but also her silences, ironic phrasings, and nuanced critiques in her writings on global colonial enterprises. Mitchell’s introduction to the two Hurston essays here reprinted, “I Saw Negro Votes Peddled” (1950 and “Why the Negro Won’t Buy Communism” (1951—courtesy of the American Legion Magazine—is set in the larger frame of his assertion that Hurston’s work should be read with a deep appreciation of her staunch anticolonialism. Tracing her political philosophy through her views of how race and religion are used to valorize an international culture of violence that serves imperialistic and colonial ends, Mitchell takes his reader on a tour of Hurston’s transnational commentary—from the US occupation of Haiti, to the Spanish and British on the Florida peninsula; from Communist Russia and China, to election practices in the US—to set the stage for our encounters with these rarely read Hurston essays. Reading Mitchell’s “Zora’s Politics: A Brief Introduction” provides a firm foundation for a more

  6. Zoogeografia storica e attuale dei carnivori e degli ungulati italiani

    Directory of Open Access Journals (Sweden)

    Marco Masseti

    2003-10-01

    futuro a preservare inalterate le caratteristiche genetiche dei taxa "nativi" del territorio italiano. A parte alcuni casi di ampliamento spontaneo degli areali di distribuzione, anche le attuali composizioni a carnivori mostrano spesso le evidenze di un'alterazione preoccupante dei quadri biogeografici originari. L'eredità della ridefinizione globale degli equilibri ecologici originari italiani, condotta dall'uomo a partire dalle epoche preistoriche e continuata in quelle storiche senza apparente soluzione di continuità, suscita problemi di conservazione e di gestione non indifferenti. Fra di essi, deve essere tenuta in particolare conto la constatazione del fatto che, nella maggior parte dei casi, è impossibile ricostruire gli ecosistemi naturali del passato, poiché questi sono andati definitivamente distrutti e perduti da millenni. Riguardo, poi, alla vulnerabilità degli ecosistemi è anche piuttosto difficile riuscire a scongiurare in forma preventiva il rischio di nuove, future introduzioni. Va infine notato che in più di un caso le definizioni tassonomiche di cui disponiamo sono state basate su caratteri spesso inconsistenti e variabili, suscitando ancora oggi perplessità sulla validità sistematica di certi taxa, soprattutto se considerati a livello subspecifico. Carnivori Canis aureus (L., 1758 Canis lupus L., 1758 Vulpes vulpes (L., 1758 Nyctereutes procyonoides (Gray, 1834 Ursus arctos (L., 1758 Procion lotor (L., 1758 Mustela erminea L., 1758 Mustela nivalis L., 1766 Mustela putorius L., 1758 Mustela vison Schreber, 1777 Martes foina (Erxleben, 1777 Martes martes (L., 1758 Meles meles (L., 1758 Lutra lutra (L., 1758 Genetta genetta (L., 1758 Herpestes edwardsii (E. Geoffroy, 1818 Felis silvestris Schreber, 1775 Lynx lynx (L., 1758 Artiodattili Sus scrofa

  7. 黑龙江阿城交界洞穴遗址的哺乳动物群%PLEISTOCENE MAMMALIAN FAUNA FROM THE JIAOJIE CAVE AT ACHENG,HEILONGJIANG PROVINCE

    Institute of Scientific and Technical Information of China (English)

    于汇历; 董为

    2011-01-01

    The Jaiojie Paleolithic Site is located in a karstic cave at Acheng, Haerbin Municipality in Heilongjiang Province. It is regarded as the oldest Paleolithic site in the province and also the northernmost one in China up to today. The geographic coordination at the cave entrance measured with the Global Positioning System ( GPS) is 45°21'07. 7"N and 127°05'16. 8"E, with an altitude of 183m. The cave deposits can be divided into 6 layers. Mammalian fossils were unearthed mainly from Layers 5 and 6 in the lower part of the cave deposits. As a Quaternary mammalian fauna,it is chronologically the earliest one in Heilongjiang Province and geographically the northernmost and easternmost in China. Layer 5 is composed of grayish green clay with some yellow clods, and the underlying Layer 6 composed of reddish yellow clay with breccia. Although the site was discovered in 1996 and systematically excavated in 1997,the fossils were never systematically described before 12 taxa were identified as follow; Mar mot a sp., Myospalax cf. Prosilurus, Ochotona sp., Lepus ( Eulagos) mandshuricus ( = Lepus wongi) , Mattes sp., Meles meles, Mustela sibirica, Ursus sp, Crocuta sp., Stephanorhinus kirchbergensis ( = Dicerorhinus mercki) ,Cervus(S. )nippon hortulorum,Capreolus capreolus manehuricus. The fossils from Layer 5 are mostly smaller forms such as Marmota sp.,Myospalax cf.prosilurus,Lepus(Eulagos) mandshuricus( = Lepus wongi) ,etc. ,and those from Layer 6 are mostly larger forms such as Stephanorhinus kirchbergensis, Cervus ( Sika) hortulorum, Crocuta etc. They are mostly northern forms. The fauna lacks typical cold forms such as Coelodonta and Mammuthus, and it was regarded as a fauna exsiting during the transition from temperate period to cold one in North Region. The comparison of fauna compositions shows that the Jiaojie fauna is close to that of the Middle Pleistocene Jinniushan and Miaohoushan faunas in Liaoning Province, the Late Pleistocene Xiaogushan and Gulongshan faunas

  8. Fatty acid composition and animal safety test of hibernation badger oil%冬眠期狗獾油脂肪酸组成分析及安全性动物试验

    Institute of Scientific and Technical Information of China (English)

    施银; 陈若晞; 全莹莹; 姜楠; 厉威池; 刘玉堂

    2015-01-01

    利用低温提取法从冬眠期狗獾脂肪组织中提取狗獾油,对其脂肪酸组成进行分析并进行安全性动物试验.结果表明:狗獾油脂肪酸主要为不饱和脂肪酸,其中上清液中不饱和脂肪酸含量高达75.3%,沉淀中为65.5%,包括人体所必需的亚麻酸、亚油酸等多不饱和脂肪酸;动物试验发现,狗獾油无急性毒性,对皮肤无刺激性,无过敏反应.分析表明,狗獾油除在传统中医领域用作药物外,还有可能替代猪油成为新的食用动物油.

  9. Durchlässe für Dachse und ihre Effektivität

    NARCIS (Netherlands)

    Broekhuizen, S.; Derckx, H.

    1996-01-01

    During the past decades the percentage of badgers falling victim to traffic accidents in the Netherlands had rapidly climbed to over 12% annually by the early 1990's (Tab. 1). Along with other endangering factors this loss was seen as a threat to the survival of the badger population. An important m

  10. 环长白山旅游公路对中大型兽类的阻隔作用%Barrier effect of Ring Changbai Mountain Scenic Highway on middle and large sized mammals

    Institute of Scientific and Technical Information of China (English)

    王云; 关磊; 朴正吉; 孔亚平

    2016-01-01

    道路对野生动物的阻隔作用是理解道路对野生动物影响的重要内容.选择毗邻和穿越长白山国家级自然保护区的环长白山旅游公路,于2008-2012年通过路域样线调查,评价了公路对中大型兽类的阻隔作用以及不同植被类型对中大型兽类活动的影响.结果显示:(1)路域500 m范围内有12种中大型兽类活动,包括5种国家级保护物种;(2)红松阔叶林中的中大型兽类的种类和痕迹数量显著大于白桦次生林;(3)公路的自然保护区侧兽类种类显著大于非保护区侧,尤其在雪季,自然保护区侧的兽类种类和痕迹数量都显著大于非保护区侧;(4)野猪(Sus scrofa)、西伯利亚狍(Capreolus pygargus)、黄鼬(Mustela sibirica)、紫貂(Martes zibellina)、黄喉貂(Manes flavigula)、狗獾(Meles leucurus)、松鼠(Sciurus vulgaris)和东北兔(Lepus mandshuricus)的痕迹数量在公路两侧和不同植被类型中都无显著差异,但黄鼬的痕迹数量在雪季时的红松阔叶林内显著大于白桦次生林,野猪和西伯利亚狍在非雪季时的红松阔叶林显著大于白桦次生林;(5)雪季,从路域50 m范围内兽类痕迹数量与兽类穿越率的关系来看,马鹿(Cervus elaphus)穿越公路通道被限制在K25~ K27区间,受公路阻隔影响较大;(6)兽类年度穿越率与交通量呈负相关关系,但不显著.本研究表明,环长白山旅游公路对兽类阻隔作用已经显现,且随着时间推移,阻隔作用有加强趋势.鉴于自然保护区外围人为干扰大的现状,提出应加强自然保护区之间的动物迁移走廊建设的建议.

  11. An innovative intervention for the treatment of cognitive impairment–Emisymmetric bilateral stimulation improves cognitive functions in Alzheimer’s disease and mild cognitive impairment: an open-label study

    Directory of Open Access Journals (Sweden)

    Guerriero F

    2015-09-01

    Full Text Available Fabio Guerriero,1–3 Emanuele Botarelli,3 Gianni Mele,3 Lorenzo Polo,3 Daniele Zoncu,3 Paolo Renati,3,4 Carmelo Sgarlata,1 Marco Rollone,2 Giovanni Ricevuti,1,2 Niccolo Maurizi,1 Matthew Francis,1 Mariangela Rondanelli,5 Simone Perna,5 Davide Guido,2,6 Piero Mannu3 1Department of Internal Medicine and Medical Therapy, Section of Geriatrics, University of Pavia, Pavia, Italy; 2Agency for Elderly People Services, Santa Margherita Hospital, Pavia, Italy; 3Ambra Elektron, Italian Association of Biophysics for the Study of Electromagnetic Fields in Medicine, 4Alberto Sorti Research Institute, Medicine and Metamolecular Biology, Turin, Italy; 5Department of Public Health, Experimental and Forensic Medicine, Section of Human Nutrition, Endocrinology and Nutrition Unit, 6Department of Public Health, Experimental and Forensic Medicine, Biostatistics and Clinical Epidemiology Unit, University of Pavia, Pavia, Italy Background and aims: In the last decade, the development of different methods of brain stimulation by electromagnetic fields (EMF provides a promising therapeutic tool for subjects with impaired cognitive functions. Emisymmetric bilateral stimulation (EBS is a novel and innovative EMF brain stimulation, whose working principle is to introduce very weak noise-like stimuli through EMF to trigger self-arrangements in the cortex of treated subjects, thereby improving cognitive faculties. The aim of this pilot study was to investigate in patients with cognitive impairment the effectiveness of EBS treatment with respect to global cognitive function, episodic memory, and executive functions. Methods: Fourteen patients with cognitive decline (six with mild cognitive impairment and eight with Alzheimer’s disease underwent three EBS applications per week to both the cerebral cortex and auricular-specific sites for a total of 5 weeks. At baseline, after 2 weeks and 5 weeks, a neuropsychological assessment was performed through mini–mental state

  12. PYFLOW_2.0. A new open-source software for quantifying impact parameters and deposition rates of dilute pyroclastic density currents

    Science.gov (United States)

    Dioguardi, Fabio; Dellino, Pierfrancesco; Mele, Daniela

    2016-04-01

    .e. starting from what is observed in the deposit (e.g. the weight fractions ratios between the different grainsize classes). In this way we obtain more realistic estimates of the deposition rate, as the deposition probability of different grainsize constituting the DPDC deposit could be different and not necessarily equal to unity. We finally present the application of PYFLOW_2.0 to pyroclastic flows generated during large scale experiments and some samples collected from DPDCs deposits of Pompei eruption at Vesuvius. Dellino, P., D. Mele, R. Sulpizio, L. La Volpe, and G. Braia (2008), A method for the calculation of the impact parameters of dilute pyroclastic density currents based on deposit particle characteristics, J. Geophys. Res., 113, B07206, doi:10.1029/2007JB005365 Dioguardi, F, and P. Dellino (2014), PYFLOW: A computer code for the calculation of the impact parameters of Dilute Pyroclastic Density Currents (DPDC) based on field data, Powder Technol., 66, 200-210, doi:10.1016/j.cageo.2014.01.013 Stow, D. A. V., and A. J. Bowen (1980), A physical model for the transport and sorting of fine-grained sediment by turbidity currents, Sedimentology, 27, 31-46

  13. 75 FR 13531 - Combined Notice of Filings #1

    Science.gov (United States)

    2010-03-22

    ...-1760-002. Applicants: Ashtabula Wind, LLC, Ashtabula Wind II, LLC, Badger Windpower, LLC, Butler Ridge..., Langdon Wind, LLC, Osceola Windpower, LLC, Osceola Windpower II, LLC, Story Wind, LLC Description:...

  14. [Special use permit for predator disease study associated with Montana black-footed ferret reintroduction, winter 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This special use permit allows USDA Animal Damage Control (APHIS) to collect up to 50 coyote, red fox or badger by aerial gunning as part of the disease study...

  15. 78 FR 64017 - Manufacturer of Controlled Substances; Notice of Application; Cedarburg Pharmaceuticals, Inc.

    Science.gov (United States)

    2013-10-25

    ... Pharmaceuticals, Inc. Pursuant to Sec. 1301.33(a), of Title 21 of the Code of Federal Regulations (CFR), this is notice that on May 8, 2013, Cedarburg Pharmaceuticals, Inc., 870 Badger Circle, Grafton, Wisconsin...

  16. Application of a Bimetallic Treatment System (BTS) for PCB Removal from Older Structures on DoD Facilities. Cost and Performance Report

    Science.gov (United States)

    2011-11-01

    Badger was established in 1942 and operated intermittently over a 55-year period to produce single and double-base propellants for cannon, rocket, and...Those explosives include nitrocellulose and nitroglycerine. The explosive potential is due to the residual explosives that fell on floors, collected in...locations at the Badger site. For example, the rocket propellant press house buildings had PCB levels as high as 11,000 mg/kg in the painted surfaces

  17. Tuberculosis in cattle: the results of the four-area project

    Directory of Open Access Journals (Sweden)

    Griffin John M

    2005-11-01

    Full Text Available The four-area project was undertaken to further assess the impact of badger removal on the control of tuberculosis in cattle herds in Ireland. It was conducted between 1997 and 2002 in matched removal and reference areas in four counties, namely Cork, Donegal, Kilkenny and Monaghan, representing a wide range of Irish farming environments. In the removal areas, a proactive programme of badger removal was conducted, on two or three occasions each year, whereas in the reference areas, badger removal was entirely reactive following severe outbreaks of tuberculosis amongst cattle. A detailed statistical analysis of this study has already been presented by Griffin et al. 13; this paper presents further, mainly descriptive, findings from the study. In total, 2,360 badgers were captured in the removal areas of which 450 (19.5% were considered positive for tuberculosis and 258 badgers were captured in the reference areas, with 57 (26.1% positive for tuberculosis. The annual incidence of confirmed herd restrictions was lower in the removal area compared to the reference area in every year of the study period in each of the four counties. These empirical findings were consistent with the hazard ratios found by Griffin et al. 13. Further, the effect of proactive badger removal on cattle tuberculosis in the four-area project and in the earlier east-Offaly project, as measured using the number of reactors per 1,000 cattle tested, were very similar, providing compelling evidence of the role of badgers in the epidemiology of tuberculosis in Irish cattle herds. The validity of the four-area project was discussed in detail. Efforts to minimise badger-to-cattle transmission in Ireland must be undertaken in association with the current comprehensive control programme, which has effectively minimised opportunities for cattle-to-cattle transmission.

  18. Comparative macroanatomical study of the neurocranium in some carnivora.

    Science.gov (United States)

    Karan, M; Timurkaan, S; Ozdemir, D; Unsaldi, E

    2006-02-01

    This study was carried out to investigate the specific anatomical features of the neurocranium of the skull of the dog, cat, badger, marten and otter. Twenty-five animals (five from each species) were used without sexual distinction. The neurocranium consists of os occipitale, os sphenoidale, os pterygoideum, os ethmoidale, vomer, os temporale, os parietale and os frontale. The processus paracondylaris is projected ventrally in the cat, dog, marten and badger, and caudally in the otter. Two foramina were found laterally on each side of the protuberantia occipitalis externa in the otter, and one foramen was found near the protuberantia occipitalis externa in the badger. Foramen was not seen in other species. Paired ossa parietalia joined each other at the midline, forming the sutura sagittalis in the badger, dog, otter and cat while it was separated by the linea temporalis in the marten. The os frontale was small in otters, narrow and long in martens, and quite wide in cats and dogs. The bulla tympanica was rounded in the marten, dog, cat and badger, dorsoventral compressed in otter, and it was very large in all species examined. These observations represented interspecies differences in the neurocranium of marten, otter, badger, cat and dog.

  19. 中国北方"第四纪(或亚代)"环境变化与大哺乳动物演化%QUATERNARY ENVIRONMENTAL CHANGES AND EVOLUTION OF LARGE MAMMALS IN NORTH CHINA

    Institute of Scientific and Technical Information of China (English)

    邱占祥

    2006-01-01

    地质年表2004的筹备和发表使关于"第四纪"概念、时限、阶元的讨论达到了高潮.目前的情势是,其下限下移至~2.6 Ma几乎已成定局;其阶元究竟是"纪"还是"亚代"正在表决中(初步表决倾向于后者).这样一来,"第四纪"就包括以海相地层为基础建立的晚上薪世、更新世及全新世三大部分.中国北方"第四纪"大哺乳动物的研究已有很长的历史.现在应该根据新的情势重新审视其演化的阶段性及其与~2.6 Ma以来环境变化之间的关系.对环境变化和大哺乳动物化石已有资料的分析表明:1)~2.6 Ma是北极冰盖大规模扩大,季风气候急剧加强,黄土开始在中国北方大面积沉积,哺乳动物群发生重大变化的时期.大量三趾马动物群特有的成员在此之前灭绝.2)~2.6至1.3 Ma是古老"第四纪"类型繁盛的时期.真马(Equus)和巨颏虎(Megantereon)从北美经过白令陆桥进入欧亚;一大批欧亚大陆起源的新属出现,如Eirictis,Meles,Crocuta,Coelodonta,Eucladoceros,Elaphurus,Leptobos等.这一时期后期的气候,从黄土粒度曲线变化幅度普遍较小判断,应该相对比较稳定,较为温和.3)1.3~0.13 Ma为中华大角鹿(Sinomegaceros)异常繁盛的时期.一大批以周口店动物群为代表的典型中更新世的种类出现,如与狼接近的变异狼、中国硕鬣狗、意外巨颏虎、基什贝尔格犀等.这一时期之初有相当数量的东洋界分子越过秦岭进入中国北方的南部,如大熊猫、东方剑齿象、巨貘、毛冠鹿、鬣羚等.这一时期的气候起伏大,有明显逐渐变冷的趋势.从黄土粒度曲线看,至少有3次明显的冷期和一次较长的暖期(L15,L9,L2和S5).因此,这一阶段是可以再分的,但这需要对哺乳动物化石和动物群的年代进行更为深入的研究.4)0.13~0.011 Ma出现大量现生种,如普氏野马、野驴、野猪、盘羊等;一些晚更新世特征的类型出现,如猛犸

  20. Tropical cooling of the ocean surface during the Last Glacial Maximum

    Science.gov (United States)

    Bard, Edouard

    2013-04-01

    Many studies have shown the importance of a correct evaluation of the mean tropical cooling to estimate the relative impact of climate forcings during the LGM, notably the effect of lower concentrations of atmospheric greenhouse gases, and in turn, have applied these results to quantify the so-called equilibrium climate sensitivity (ECS) to a CO2 doubling. Several geochemical paleothermometers have been used to estimate the tropical sea surface temperatures (e.g. SST based on alkenones and magnesium/calcium ratios measured in ocean sediments) that can be compared with model estimates (e.g. Bard 1999 Science for a short discussion). For alkenones, the TEMPUS group (Rosell-Mele et al. 2004 GRL) and MARGO group (Waelbroeck et al. Nat. Geo. 2009) used a linear equation of UK37' vs. SST based on the global core top calibration compiled by Müller et al. (1998 GCA). This calibration is indistinguishable from the original calibration based on Emiliana huxleyi cultures (Prahl et al. 1988 GCA). However, it has also been shown that the warm end of the UK37' calibration is flatter than indicated by a single straight line over the full SST range. For the warm end, this started with our study by Sonzogni et al. (1997 QR) based on low-latitude core tops from the Indian Ocean including samples representing SST between 24 and 30°C. This UK37' versus SST linear equation has a reduced slope (0.023/°C) when compared to that (0.033/°C) derived from the linear equation based on core tops compiled from all oceans (Müller et al. 1998). Support for this complexity also comes from close inspection of the global compilation by Müller et al., suggesting that the relationship flattens out at high temperatures (see also Pelejero & Calvo 2003 G3). In addition, culture studies of different strains of Gephyrocapsa oceanica and E. huxleyi (Conte et al., 1998 GCA) and measurements of sinking particulate matter from Bermuda (Conte et al. 2001 GCA) strongly suggest that the real shape of the UK

  1. Land - Ocean Climate Linkages and the Human Evolution - New ICDP and IODP Drilling Initiatives in the East African Rift Valley and SW Indian Ocean

    Science.gov (United States)

    Zahn, R.; Feibel, C.; Co-Pis, Icdp/Iodp

    2009-04-01

    enable us to establish the linkages between the ocean climatology of the SW Indian and terrestrial climates of Eastern Africa during key periods of global climate change. Combining the ICDP records of East African terrestrial climate at key hominin sites with IODP records of marine climate variability at the SE African continental margin will help to test if pulses of hominin evolutionary innovation were linked with periods of enhanced variability of local terrestrial environments and marine climatology of the Indian Ocean. * co-PIs of the ICDP initiative HSPDP are A.S. Cohen, R. Arrowsmith, A.K. Behrensmeyer, C. Feibel, R. Johnson, Z. Kubsa, D. Olago, R. Potts, R. Renaut * co-PIs of the IODP initiative SAFARI are R. Zahn, I. Hall, R. Schneider, M. Á. Bárcena, S. Barker, A. Biastoch, Chr. Charles, J. Compton, R. Cowling, P. Diz, L. Dupont, J.-A. Flores, S. Goldstein, S. Hemming, K. Holmgren, J. Lee-Thorp, G. Knorr, C. Lear, A. Mazaud, G. Mortyn, F. Peeters, B. Preu, R. Rickaby, J. Rogers, A. Rosell-Mele, Chr. Reason, V. Spiess, M. Trauth, G. Uenzelmann-Neben, S. Weldeab, P. Ziveri

  2. Getting priorities straight: improving Linux support for database I/O

    DEFF Research Database (Denmark)

    Hall, Christoffer; Bonnet, Philippe

    2005-01-01

    The Linux 2.6 kernel supports asynchronous I/O as a result of propositions from the database industry. This is a positive evolution but is it a panacea? In the context of the Badger project, a collaboration between MySQL AB and University of Copenhagen, ......The Linux 2.6 kernel supports asynchronous I/O as a result of propositions from the database industry. This is a positive evolution but is it a panacea? In the context of the Badger project, a collaboration between MySQL AB and University of Copenhagen, ...

  3. Põ-põ-põnevus ga-garanteeritud / Karl Martin Sinijärv

    Index Scriptorium Estoniae

    Sinijärv, Karl Martin, 1971-

    2003-01-01

    Thomas, Ross. Kibuvitsatihnik : [romaan] / inglise keelest tõlkinud Ann Must. Tallinn] : Varrak, 2003; Simenon, Georges. Peeter Lätlane : [romaan] / prantsuse keelest tõlkinud Madli Kütt. [Tallinn] : Tänapäev, 2003 ; Graham, Caroline. Mõrvad Badger's Driftis / inglise keelest tõlkinud Urve Liivamägi. [Tallinn] : Varrak, 2003

  4. Characterization and Expression of Drug Resistance Genes in MDROs Originating from Combat Wound Infections

    Science.gov (United States)

    2014-10-01

    antigen biosynthesis regions in Vibrio cholerae . Applied and environmental microbiology 2011, 77:2247-2253. 6. Jacobsen A, Hendriksen RS, Aaresturp FM...2004, 32:2386-2395. 4. Chen Y, Stine OC, Badger JH, Gil AI, Nair GB, Nishibuchi M, Fouts DE: Comparative Genomic Analysis of Vibrio

  5. Environmental Assessment for Type III Fuel Hydrant System at Grissom Air Reserve Base

    Science.gov (United States)

    2011-10-01

    Armoracia aquatica Aster furcatus Carex sparganioides var. cephaloidea Carex straminea Coeloglossum vir ide var. virescens Cypripedium calceolus var...American Badger Michaux’s Stitchwort Lake Cress forked Aster Thinleaf Sedge Straw Sedge Long-bract Green Orchis Small Yellow Ladys-slipper Tufted

  6. Superconducting Magnetic Energy Storage (SMES-ETM) System. Environmental Impact Assessment Process Implementation Plan

    Science.gov (United States)

    1989-11-28

    ETM system. These five sites are: White Sands Missile Range (WSMR) Site, New Mexico Badger Army Ammunition Plant (BAAP) Site, Wisconsin BPA Hanford ...Geological Conditions: Hazards, energy and mineral resources and soil resources; and ■ Seismic Conditions: Physiography, stratigraphy, geologic...structure, and regional seismicity . This work plan identifies requirements for producing an analysis of water resources to be examined during SMES

  7. Environmental Assessment Supplement: Proposed Military Construction Project, Deployable Medical System Training Area and Military Equipment Parking, Fairchild Air Force Base, Washington

    Science.gov (United States)

    2011-11-01

    Environmental Compliance Requirements National Environmental Policy Act of 1969, as amended NEPA requires all federal agencies to use a systematic ...Order Lepidoptera ) and grasshoppers (Order Orthoptera). Holes, which were likely the openings of badger burrows (Selser, personal communication, 2011...Compliance Requirements National Environmental Policy Act of 1969 (NEPA), as amended NEPA requires all Federal agencies to use a systematic

  8. 78 FR 49498 - Combined Notice of Filings #1

    Science.gov (United States)

    2013-08-14

    ..., Backbone Mountain Windpower LLC, Badger Windpower, LLC, Baldwin Wind, LLC, Bayswater Peaking Facility, LLC... II, LLC, Logan Wind Energy LLC, Meyersdale Windpower LLC, Mill Run Windpower, LLC, Minco Wind, LLC... Partnership, North Sky River Energy, LLC, Northern Colorado Wind Energy, LLC, Osceola Windpower, LLC,...

  9. 75 FR 3721 - Combined Notice of Filings #1

    Science.gov (United States)

    2010-01-22

    ... Power Company, LP; Ashtabula Wind, LLC; Backbone Mountain Windpower LLC; Badger Windpower LLC; Bayswater... Power Partners II, LLC; Langdon Wind, LLC; Logan Wind Energy LLC; Meyersdale Windpower, LLC; Mill Run Windpower, LLC; NextEra Energy Power Marketing, LLC; NextEra Energy Duane Arnold, LLC; NextEra Energy...

  10. 77 FR 27223 - Combined Notice of Filings #1

    Science.gov (United States)

    2012-05-09

    ... II, LLC, Ashtabula Wind III, LLC, Backbone Mountain Windpower LLC, Badger Windpower, LLC, Baldwin..., LLC, Langdon Wind, LLC, Logan Wind Energy LLC, Meyersdale Windpower LLC, Mill Run Windpower, LLC... Partnership, Northern Colorado Wind Energy, LLC, Osceola Windpower, LLC, Osceola Windpower II, LLC,...

  11. 75 FR 39236 - Combined Notice of Filings #1

    Science.gov (United States)

    2010-07-08

    ...; Ashtabula Wind II, LLC; Backbone Mountain Windpower, LLC; Badger Windpower, LLC; Bayswater Peaking Facility..., LLC; Logan Wind Energy LLC; Meyersdale Windpower, LLC; Mill Run Windpower, LLC; NextEra Energy Duane... Energy, LLC; Osceola Windpower, LLC; Osceola Windpower II, LLC; Pennsylvania Windfarms, Inc.; Sky...

  12. 77 FR 41399 - Combined Notice of Filings #2

    Science.gov (United States)

    2012-07-13

    ..., Ashtabula Wind III, LLC, Badger Windpower, LLC, Baldwin Wind, LLC, Butler Ridge Wind Energy Center, Crystal... Beach, LLC, NextEra Energy Power Marketing, LLC, NEPM II, LLC, Osceola Windpower, LLC, Osceola Windpower..., Wilton Wind II, LLC, Windpower Partners 1993, LLC. Description: Updated Market Power Analysis for...

  13. Reflected Blast Measurements at Small Scaled Distances for M26E1 Propellant

    Science.gov (United States)

    1979-06-01

    produces a half- sine , positive pressure pulse with peak amplitudes from 100 psi (0.7 MPa) to more than 10,000 psi (70 MPa), and rise times of 1 to 2...Plant ATTN: SARMI-S Milan, TN 38358 Commander Radford Army Ammunition Plant ATTN: SARRA -IE (2) Radford, VA 24141 Commander Badger Army

  14. 75 FR 8063 - Notice of a Regional Waiver of Section 1605 (Buy American Requirement) of the American Recovery...

    Science.gov (United States)

    2010-02-23

    ... Monitor with Leak Detection Indicator in-home water meter monitors manufactured in Malaysia by Escatech... requirements of Section 1605(a) of Public Law 111-5, Buy American requirements, to the City for the acquisition... in Malaysia by Escatech, Inc., under license from Badger Meter, Inc., located in Milwaukee,...

  15. Spatial Temporal Dynamics and Molecular Evolution of Re-Emerging Rabies Virus in Taiwan

    Directory of Open Access Journals (Sweden)

    Yung-Cheng Lin

    2016-03-01

    Full Text Available Taiwan has been recognized by the World Organization for Animal Health as rabies-free since 1961. Surprisingly, rabies virus (RABV was identified in a dead Formosan ferret badger in July 2013. Later, more infected ferret badgers were reported from different geographic regions of Taiwan. In order to know its evolutionary history and spatial temporal dynamics of this virus, phylogeny was reconstructed by maximum likelihood and Bayesian methods based on the full-length of glycoprotein (G, matrix protein (M, and nucleoprotein (N genes. The evolutionary rates and phylogeographic were determined using Beast and SPREAD software. Phylogenetic trees showed a monophyletic group containing all of RABV isolates from Taiwan and it further separated into three sub-groups. The estimated nucleotide substitution rates of G, M, and N genes were between 2.49 × 10−4–4.75 × 10−4 substitutions/site/year, and the mean ratio of dN/dS was significantly low. The time of the most recent common ancestor was estimated around 75, 89, and 170 years, respectively. Phylogeographic analysis suggested the origin of the epidemic could be in Eastern Taiwan, then the Formosan ferret badger moved across the Central Range of Taiwan to western regions and separated into two branches. In this study, we illustrated the evolution history and phylogeographic of RABV in Formosan ferret badgers.

  16. Spatial Temporal Dynamics and Molecular Evolution of Re-Emerging Rabies Virus in Taiwan.

    Science.gov (United States)

    Lin, Yung-Cheng; Chu, Pei-Yu; Chang, Mei-Yin; Hsiao, Kuang-Liang; Lin, Jih-Hui; Liu, Hsin-Fu

    2016-03-17

    Taiwan has been recognized by the World Organization for Animal Health as rabies-free since 1961. Surprisingly, rabies virus (RABV) was identified in a dead Formosan ferret badger in July 2013. Later, more infected ferret badgers were reported from different geographic regions of Taiwan. In order to know its evolutionary history and spatial temporal dynamics of this virus, phylogeny was reconstructed by maximum likelihood and Bayesian methods based on the full-length of glycoprotein (G), matrix protein (M), and nucleoprotein (N) genes. The evolutionary rates and phylogeographic were determined using Beast and SPREAD software. Phylogenetic trees showed a monophyletic group containing all of RABV isolates from Taiwan and it further separated into three sub-groups. The estimated nucleotide substitution rates of G, M, and N genes were between 2.49 × 10(-4)-4.75 × 10(-4) substitutions/site/year, and the mean ratio of dN/dS was significantly low. The time of the most recent common ancestor was estimated around 75, 89, and 170 years, respectively. Phylogeographic analysis suggested the origin of the epidemic could be in Eastern Taiwan, then the Formosan ferret badger moved across the Central Range of Taiwan to western regions and separated into two branches. In this study, we illustrated the evolution history and phylogeographic of RABV in Formosan ferret badgers.

  17. Development of survival skills in captive-raised Siberian polecats (Mustela eversmanni) II: predator avoidance

    Science.gov (United States)

    Miller, Brian; Biggins, Dean; Wemmer, Chris; Powell, Roger; Calvo, Lorena; Hanebury, Lou; Wharton, Tracy

    1990-01-01

    We exposed naive Siberain polecats (Mustela eversmanni) (aged 2, 3, and 4 months) to a swooping stuffed great horned owl (Buho virginianus) and a stuffed badger (Taxidae taxus) mounted on a remote control toy automobile frame. The first introduction to each was harmless, the second was accompanied by a mild aversive stimulus, the third (1 day after attack) was harmless, and the fourth (30 days after attack) was harmless. Alert behavior increased after a single attack by either predator model. Escape responses of naive polecats did not differ between ages when exposed to the badger, but 4 month old polecats reduced their escape times after a single badger attack. When exposed to the swooping owl, naive 4 month old polecats redponded more quickly than the other two age groups, and 3 and 4 month old polecats reduced escape times after a single owl attack. This indicates an innate escape response to the owl model at 4 months of age, and a short-tert ability to remember a single mild aversive encounter with the badger and owl models at 3 or 4 months of age.

  18. Laser-Excited Opto-Acoustic Pulses in a Flame

    Science.gov (United States)

    1981-06-01

    Corporation Ŗ AFRPL (DYSC) AATTN: E.B. Fisher ATTN: D. George P.O. Box 400 J.N. Levine Buffalo, NY 14211 Edwards AFB, CA 93523 4 o u o n1 Foster Miller...Corporation 3 West Virginia University Badger Army Ammunition Plant Department of Chemistry ATTN: J. Ramnarace ATTN: G. Havrilla Baraboo, WI

  19. The Process Genre Writing Approach; An Alternative Option for the Modern Classroom

    Science.gov (United States)

    Tudor, Emma

    2017-01-01

    "Writing involves knowledge about the language, the context in which writing happens and skills in using language. Writing development happens by drawing out the learners' potential and providing input to which learners respond" (Badger & White, 2000.) Taking this in to account, the Process Genre Approach in writing classes can be…

  20. Impact of a changed inundation regime caused by climate change and floodplain rehabilitation on population viability of earthworms in a lower River Rhine floodplain

    NARCIS (Netherlands)

    Thonon, I.; Klok, C.

    2007-01-01

    River floodplains are dynamic and fertile ecosystems where soil invertebrates such as earthworms can reach high population densities. Earthworms are an important food source for a wide range of organisms including species under conservation such as badgers. Flooding, however, reduces earthworm numbe

  1. Press Coverage of the Persian Gulf War: Historical Perspectives and Questions of Policy Beyond the Shadow of Vietnam

    Science.gov (United States)

    1992-06-01

    sketch lampooned the press for badgering the military with often intrusive and sometimes inane questions, even wavering White House officials were won...the war." (Wolfe, 1991, p. 67) Bill Kovach, curator of the Neiman Foundation for Journalism at Harvard University simply stated: "We covered the

  2. Undersøgelse af nye vildtyper af hvalpesygevirus

    DEFF Research Database (Denmark)

    Nielsen, Line; Jensen, Trine Hammer; Hammer, Anne Sofie

    2010-01-01

    the new wildtype CDVs, performed nucleic acid sequencing and determined the relatedness of the wildtypes. We found that the isolated virus from the investigated terrestrial carnivores (mink, badger, European polecat, beech marten and pine marten) were canine distemper virus, which was phylogeny separated...

  3. U. S. Naval Strategy and Foreign Policy in China, 1945-1950.

    Science.gov (United States)

    1980-06-05

    confusion and un- certainty regarding the future direction of America’s China policy preceding the Marshall Mission, Rear Admiral Stuart S. " Sunshine ...admiral, Badger possessed an outstanding former service record and an intense determination to succeed at his new assignment. En- ergetic, eternally

  4. Seryozha's Education

    Science.gov (United States)

    Blaisdell, Bob

    2015-01-01

    This is discussion of one of Leo Tolstoy's fictional dramatisations of aggressive but dull-witted pedagogy. In "Anna Karenina," two adults badger a lively, deep-souled, active-minded boy, Anna's son Seryozha, to learn his rote-lessons.

  5. Emergency rabies control in a community of two high-density hosts

    Directory of Open Access Journals (Sweden)

    Singer Alexander

    2012-06-01

    Full Text Available Abstract Background Rabies is a fatal viral disease that potentially can affect all mammals. Terrestrial rabies is not present in the United Kingdom and has been eliminated from Western Europe. Nevertheless the possibility remains that rabies could be introduced to England, where it would find two potentially suitable hosts, red foxes and badgers. With the aim to analyse the spread and emergency control of rabies in this two species host community, a simulation model was constructed. Different control strategies involving anti-rabies vaccination and population culling were developed, considering control application rates, spatial extent and timing. These strategies were evaluated for efficacy and feasibility to control rabies in hypothetical rural areas in the South of England immediately after a disease outbreak. Results The model confirmed that both fox and badger populations, separately, were competent hosts for the spread of rabies. Realistic vaccination levels were not sufficient to control rabies in high-density badger populations. The combined species community was a very strong rabies host. However, disease spread within species appeared to be more important than cross-species infection. Thus, the drivers of epidemiology depend on the potential of separate host species to sustain the disease. To control a rabies outbreak in the two species, both species had to be targeted. Realistic and robust control strategies involved vaccination of foxes and badgers, but also required badger culling. Although fox and badger populations in the UK are exceptionally dense, an outbreak of rabies can be controlled with a higher than 90% chance, if control response is quick and follows a strict regime. This requires surveillance and forceful and repeated control campaigns. In contrast, an uncontrolled rabies outbreak in the South of England would quickly develop into a strong epizootic involving tens of thousands of rabid foxes and badgers. Conclusions If

  6. Effect of BaP on placental villus injury in early pregnant mice and the protective mechanism of meletin against BaP%苯并芘对孕早期小鼠胎盘绒毛组织的影响及槲皮素的防护作用机制

    Institute of Scientific and Technical Information of China (English)

    高秀霞; 侯海燕; 孔祥玲; 刘传丽

    2016-01-01

    Objective To study the action of injury that BaP acts on placental villus of early pregnant mice and the mechanism of mele-tin opposing BaP.Methods Totally 150 viripotent ICR mice(100 female mice,50 male mice)were randomized into five groups,ev-ery group including 30 mice(20 female mice,10 male mice).Female and male mice were raised respectively,mice in group A were lavaged with BaP (2 mg·kg -1 ·d -1 ),mice in group B,C,D lavaged with BaP(2 mg·kg -1 ·d -1 )and ME(0.5,1.0,2.0 g· kg -1 ·d -1 respectively),mice in group E lavaged with normal saline(0.9%)plusolive oil.After 15days,male mice were mated with female mice.Pregnancy was determined the next day based on the presence of a vaginal plug,then lavaging continued for another 7 days.The mice were euthanized for the detection of Bax and Bcl -2 mRNA levels and the activity of cytochrome 450,GSH -PX and SOD in placental villus.Results The total pregnancy rate was 45%,and the pregnancy rate had no statistical difference(χ2 =0.808,P =0.937).Bax mRNA levels were higher in group B,C,D than in group E (P <0.05),while lower than in group A (P <0.05).With the increase of ME dose,the expression of Bax mRNA decreased (P <0.05);Bcl -2 mRNA levels were lower in group B,C,D than in group E (P <0.05), while higher than in group A (P <0.05).With the increase of ME dose,the expression of Bcl -2 mRNA increased (P <0.05).The activity of cytochrome P450 in group B,C,D was greater than in group E ,while lower than in group A(P <0.05).With the increase of ME dose,the activity of cytochrome P450 decreased(P <0.05).The activity of GSH -PX,SOD in group B,C,D was lower than in group E ,while greater than in group A(P <0.05).With the increase of ME dose,the activity of GSH -PX,SOD increased(P <0.05).Conclusion Meletin can protect the mice against placental villus injury by raising the activity of antioxidase and suppressing the cell apoptosis in the placental villus .%目的:研究苯并芘(BaP)损伤小鼠胎盘绒毛组织细

  7. Intoxication of nontarget wildlife with rodenticides in northwestern Kansas.

    Science.gov (United States)

    Ruder, Mark G; Poppenga, Robert H; Bryan, John A; Bain, Matt; Pitman, Jim; Keel, M Kevin

    2011-01-01

    The perception of prairie dogs (Cynomys spp.) both as a nuisance species and a keystone species presents a significant challenge to land, livestock, and wildlife managers. Anticoagulant and nonanticoagulant rodenticides are commonly employed to control prairie dog populations throughout their range. Chlorophacinone, and to a lesser extent zinc phosphide, are widely used in northwestern Kansas for controlling black-tailed prairie dog (Cynomys ludovicianus) populations. Although zinc phosphide poisoning of gallinaceous birds is not uncommon, there are few published accounts of nontarget chlorophacinone poisoning of wildlife. We report three mortality events involving nontarget rodenticide poisoning in several species, including wild turkeys (Meleagris gallopavo), a raccoon (Procyon lotor), and an American badger (Taxidea taxus). This includes the first documentation of chlorophacinone intoxication in wild turkeys and an American badger in the literature. The extent of nontarget poisoning in this area is currently unknown and warrants further investigation.

  8. An improved low-temperature equation of state model for integrated IFE target-chamber response simulations

    Science.gov (United States)

    Heltemes, Thad; Moses, Gregory

    2010-11-01

    A new quotidian equation of state model (QEOS) has been developed to perform integrated inertial fusion energy (IFE) target explosion-chamber response simulations. This QEOS model employs a scaled binding energy model for the ion EOS and utilizes both n- and l-splitting for determining the ionization state and electron EOS. This QEOS model, named BADGER, can perform both local thermodynamic equilibrium (LTE) and non-LTE EOS calculations. BADGER has been integrated with the 1-D radiation hydrodynamics code BUCKY to simulate the chamber response of an exploding indirect-drive deuterium-tritium (DT) target, xenon gas-filled chamber and tungsten first-wall armor. The simulated system is a prototypical configuration for the LIFE reactor study being conducted by Lawrence Livermore National Laboratory (LLNL).

  9. Changing Minds by Reasoning About Belief Revision: A Challenge for Cognitive Systems

    Science.gov (United States)

    2013-12-01

    Consider the following paraphrased example adapted from (Schwitzgebel, 2010): Juliet the implicit racist . “Many Caucasians in academia profess that all races...the point repeatedly in the past. And yet Juliet is systematically racist in most of her spontaneous reactions, her unguarded behavior, and her...directly argue for the honey-badger logo and against the mantis shrimp. Jane’s tone of voice, facial expressions and body language may seem to indicate

  10. Can Smartphones and Privacy Coexist Assessing Technologies and Regulations Protecting Personal Data on Android and iOS Devices

    Science.gov (United States)

    2016-01-01

    Experience Returns for Security (BADGERS), September 11, 2014. Lockheimer, Hiroshi, “ Android and Security ,” Google Mobile Blog, February 2, 2012. As...C O R P O R A T I O N Can Smartphones and Privacy Coexist? Assessing Technologies and Regulations Protecting Personal Data on Android and iOS...from unknown sources even if they have not been approved for the app store (“Google Report: Android Security 2014 Year in Review,” 2014). This makes

  11. Structural determination of some uranyl compounds by vibrational spectroscopy; Determinacion estructural de algunos compuestos de uranilo por espectroscopia vibracional

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez S, A.; Martinez Q, E

    1990-07-15

    The vibrational spectra of different uranyl compounds has been studied and of it spectral information has been used the fundamental asymmetric vibrational frequency, to determine the length and constant bond force U=O by means of the combination of the concept of absorbed energy and the mathematical expression of Badger modified by Jones. It is intended a factor that simplifies the mathematical treatment and the results are compared with the values obtained for other methods. (Author)

  12. Remote-sensing based approach to forecast habitat quality under climate change scenarios

    Science.gov (United States)

    Requena-Mullor, Juan M.; López, Enrique; Castro, Antonio J.; Alcaraz-Segura, Domingo; Castro, Hermelindo; Reyes, Andrés; Cabello, Javier

    2017-01-01

    As climate change is expected to have a significant impact on species distributions, there is an urgent challenge to provide reliable information to guide conservation biodiversity policies. In addressing this challenge, we propose a remote sensing-based approach to forecast the future habitat quality for European badger, a species not abundant and at risk of local extinction in the arid environments of southeastern Spain, by incorporating environmental variables related with the ecosystem functioning and correlated with climate and land use. Using ensemble prediction methods, we designed global spatial distribution models for the distribution range of badger using presence-only data and climate variables. Then, we constructed regional models for an arid region in the southeast Spain using EVI (Enhanced Vegetation Index) derived variables and weighting the pseudo-absences with the global model projections applied to this region. Finally, we forecast the badger potential spatial distribution in the time period 2071–2099 based on IPCC scenarios incorporating the uncertainty derived from the predicted values of EVI-derived variables. By including remotely sensed descriptors of the temporal dynamics and spatial patterns of ecosystem functioning into spatial distribution models, results suggest that future forecast is less favorable for European badgers than not including them. In addition, change in spatial pattern of habitat suitability may become higher than when forecasts are based just on climate variables. Since the validity of future forecast only based on climate variables is currently questioned, conservation policies supported by such information could have a biased vision and overestimate or underestimate the potential changes in species distribution derived from climate change. The incorporation of ecosystem functional attributes derived from remote sensing in the modeling of future forecast may contribute to the improvement of the detection of ecological

  13. Remote-sensing based approach to forecast habitat quality under climate change scenarios.

    Science.gov (United States)

    Requena-Mullor, Juan M; López, Enrique; Castro, Antonio J; Alcaraz-Segura, Domingo; Castro, Hermelindo; Reyes, Andrés; Cabello, Javier

    2017-01-01

    As climate change is expected to have a significant impact on species distributions, there is an urgent challenge to provide reliable information to guide conservation biodiversity policies. In addressing this challenge, we propose a remote sensing-based approach to forecast the future habitat quality for European badger, a species not abundant and at risk of local extinction in the arid environments of southeastern Spain, by incorporating environmental variables related with the ecosystem functioning and correlated with climate and land use. Using ensemble prediction methods, we designed global spatial distribution models for the distribution range of badger using presence-only data and climate variables. Then, we constructed regional models for an arid region in the southeast Spain using EVI (Enhanced Vegetation Index) derived variables and weighting the pseudo-absences with the global model projections applied to this region. Finally, we forecast the badger potential spatial distribution in the time period 2071-2099 based on IPCC scenarios incorporating the uncertainty derived from the predicted values of EVI-derived variables. By including remotely sensed descriptors of the temporal dynamics and spatial patterns of ecosystem functioning into spatial distribution models, results suggest that future forecast is less favorable for European badgers than not including them. In addition, change in spatial pattern of habitat suitability may become higher than when forecasts are based just on climate variables. Since the validity of future forecast only based on climate variables is currently questioned, conservation policies supported by such information could have a biased vision and overestimate or underestimate the potential changes in species distribution derived from climate change. The incorporation of ecosystem functional attributes derived from remote sensing in the modeling of future forecast may contribute to the improvement of the detection of ecological

  14. Genetic characterization of feline parvovirus sequences from various carnivores.

    Science.gov (United States)

    Steinel, A; Munson, L; van Vuuren, M; Truyen, U

    2000-02-01

    Infections with viruses of the feline parvovirus subgroup such as feline panleukopenia virus (FPV), mink enteritis virus (MEV) and canine parvovirus (CPV-2) [together with its new antigenic types (CPV-2a, CPV-2b)] have been reported from several wild carnivore species. To examine the susceptibility of different species to the various parvoviruses and their antigenic types, samples from wild carnivores with acute parvovirus infections were collected. Viral DNA was amplified, and subsequently analysed, from faeces or formalin-fixed small intestines from an orphaned bat-eared fox (Otocyon megalotis), a free-ranging honey badger (Mellivora capensis), six captive cheetahs (Acinonyx jubatus), a captive Siberian tiger (Panthera tigris altaica) and a free-ranging African wild cat (Felis lybica). Parvovirus infection in bat-eared fox and honey badger was demonstrated for the first time. FPV-sequences were detected in tissues of the African wild cat and in faeces of one cheetah and the honey badger, whereas CPV-2b sequences were found in five cheetahs and the bat-eared fox. The Siberian tiger (from a German zoo) was infected with a CPV-type 2a virus. This distribution of feline parvovirus antigenic types in captive large cats suggests an interspecies transmission from domestic dogs. CPV-2 sequences were not detected in any of the specimens and no sequences with features intermediate between FPV and CPV were found in any of the animals examined.

  15. Bovine tuberculosis infection in wild mammals in the South-West region of England: a survey of prevalence and a semi-quantitative assessment of the relative risks to cattle.

    Science.gov (United States)

    Delahay, R J; Smith, G C; Barlow, A M; Walker, N; Harris, A; Clifton-Hadley, R S; Cheeseman, C L

    2007-03-01

    In the United Kingdom, badgers are implicated in the transmission of Mycobacterium bovis to cattle, but little information is available on the potential role of other wild mammals. This paper presents the results of the largest systematic UK survey of M. bovis infection in other wild mammals. Mammal carcasses (4715) from throughout the South-West region of England were subjected to a systematic post mortem examination, microbiological culture of tissues and spoligotyping of isolates. Infection was confirmed in fox, stoat, polecat, common shrew, yellow-necked mouse, wood mouse, field vole, grey squirrel, roe deer, red deer, fallow deer and muntjac. Prevalence in deer may have been underestimated because the majority were incomplete carcasses, which reduced the likelihood of detecting infection. Infected cases were found in Wiltshire, Somerset, Devon and Cornwall, Gloucestershire and Herefordshire. Lesions were found in a high proportion of spoligotype-positive fallow, red and roe deer, and a single fox, stoat and muntjac. M. bovis spoligotypes occurred in a similar frequency of occurrence to that in cattle and badgers. Data on prevalence, pathology, abundance and ecology of wild mammals was integrated in a semi-quantitative risk assessment of the likelihood of transmission to cattle relative to badgers. Although most species presented a relatively low risk, higher values and uncertainty associated with muntjac, roe, red and in particular fallow deer, suggest they require further investigation. The results suggest that deer should be considered as potential, although probably localised, sources of infection for cattle.

  16. Public Health Responses to Reemergence of Animal Rabies, Taiwan, July 16-December 28, 2013.

    Directory of Open Access Journals (Sweden)

    Angela Song-En Huang

    Full Text Available Taiwan had been free of indigenous human and animal rabies case since canine rabies was eliminated in 1961. In July 2013, rabies was confirmed among three wild ferret-badgers, prompting public health response to prevent human rabies cases. This descriptive study reports the immediate response to the reemergence of rabies in Taiwan. Response included enhanced surveillance for human rabies cases by testing stored cerebrospinal fluids (CSF from patients with encephalitides of unknown cause by RT-PCR, prioritizing vaccine use for postexposure prophylaxis (PEP during periods of vaccine shortage and subsequent expansion of PEP, surveillance of animal bites using information obtained from vaccine application, roll out of preexposure prophylaxis (PrEP with vaccine stock restoration, surveillance for adverse events following immunization (AEFI, and ensuring surge capacity to respond to general public inquiries by phone and training for healthcare professionals. Enhanced surveillance for human rabies found no cases after testing 205 stored CSF specimens collected during January 2010-July 2013. During July 16 to December 28, 2013, we received 8,241 rabies PEP application; 6,634 (80.5% were consistent with recommendations. Among the 6,501 persons who received at least one dose of rabies vaccine postexposure, 4,953 (76.2% persons who were bitten by dogs; only 59 (0.9% persons were bitten by ferret-badgers. During the study period, 6,247 persons received preexposure prophylaxis. There were 23 reports of AEFI; but no anaphylaxis, Guillain-Barré syndrome, or acute disseminated encephalomyelitis were found. During the study period, there were 40,312 calls to the Taiwan Centers for Disease Control hotline, of which, 8,692 (22% were related to rabies. Recent identification of rabies among ferret-badgers in a previously rabies-free country prompted rapid response. To date, no human rabies has been identified. Continued multifaceted surveillance and

  17. An inter-laboratory validation of a real time PCR assay to measure host excretion of bacterial pathogens, particularly of Mycobacterium bovis.

    Directory of Open Access Journals (Sweden)

    Emma R Travis

    Full Text Available Advances in the diagnosis of Mycobacterium bovis infection in wildlife hosts may benefit the development of sustainable approaches to the management of bovine tuberculosis in cattle. In the present study, three laboratories from two different countries participated in a validation trial to evaluate the reliability and reproducibility of a real time PCR assay in the detection and quantification of M. bovis from environmental samples. The sample panels consisted of negative badger faeces spiked with a dilution series of M. bovis BCG Pasteur and of field samples of faeces from badgers of unknown infection status taken from badger latrines in areas with high and low incidence of bovine TB (bTB in cattle. Samples were tested with a previously optimised methodology. The experimental design involved rigorous testing which highlighted a number of potential pitfalls in the analysis of environmental samples using real time PCR. Despite minor variation between operators and laboratories, the validation study demonstrated good concordance between the three laboratories: on the spiked panels, the test showed high levels of agreement in terms of positive/negative detection, with high specificity (100% and high sensitivity (97% at levels of 10(5 cells g(-1 and above. Quantitative analysis of the data revealed low variability in recovery of BCG cells between laboratories and operators. On the field samples, the test showed high reproducibility both in terms of positive/negative detection and in the number of cells detected, despite low numbers of samples identified as positive by any laboratory. Use of a parallel PCR inhibition control assay revealed negligible PCR-interfering chemicals co-extracted with the DNA. This is the first example of a multi-laboratory validation of a real time PCR assay for the detection of mycobacteria in environmental samples. Field studies are now required to determine how best to apply the assay for population-level b

  18. Military and Security Developments Involving the People’s Republic of China 2012 (Annual Report to Congress)

    Science.gov (United States)

    2012-05-01

    avionics , and supercruise-capable engines. China is upgrading its B-6 bomber fleet (originally adapted from the Soviet Tu-16 BADGER) with a new, longer...G as P ip el in es 40 b illi on cu bic m et er s/ ye ar St ra it of H or m uz : 4 0% Am er ica s: 8% St ra it of M ala cc a: 82 % S un da...S tr ait : 1 % As ia, n ot v ia M ala cc a/ Su nd a: 4% Ru ss ia Se ab or ne : 1 % G ul f o f A de

  19. The Influence of the General Board of the Navy on Interwar Destroyer Design

    Science.gov (United States)

    2011-06-10

    warship type of the 20th century. The invention of the ―self-propelled torpedo ultimately led to the creation of the destroyer. . . . Inventors hoped...bad weather, nor can the waist guns. BADGER: So the after gun is the only one you can depend upon? VERNOU: Yes. The sea is washing over the waist...1920; HBGB 1917-50, vol. 2, year 1920, 445. 59Ibid., 445. Anti-aircraft capabilities included the use of double purpose guns, as well as machine

  20. Fox- and raccoon-dog–associated rabies outbreaks in northern China

    Institute of Scientific and Technical Information of China (English)

    Ye; Liu; Shoufeng; Zhang; Jinghui; Zhao; Fei; Zhang; Nan; Li; Hai; Lian; Wurengege; Shiyu; Guo; Rongliang; Hu

    2014-01-01

    <正>Dear Editor,Rabies is a generally fatal disease caused by the rabies virus(RABV),and is transmitted mainly by Carnivora and Chiroptera(Fooks A R,et al.,2014;Tao X,et al.,2013).In China,stray dogs and some wild animals(e.g.,Chinese ferret badgers,foxes,and raccoon dogs)are the principal reservoirs for RABV(Hu R L,et al.,2009).Historically,rabies in wild foxes and raccoon dogs(Nyctereutes procyonoides)was recorded in the early

  1. Monitoring the use of artificial log pile otter holts using hair analysis from bedding

    Directory of Open Access Journals (Sweden)

    Cowell D.

    2001-04-01

    Full Text Available Nineteen, approximately ten year old log pile holts (LPH in mid-Wales, UK, were dismantled prior to reconstruction and any bedding from couches removed for analysis. The plant material making up the bedding was identified and animal guard hairs contained within it were determined to species. The bedding material simply consisted of opportunistically available material with little evident selection. Hairs of cow and sheep were clearly brought in with the bedding but it is suggested that hairs of otter, badger, fox, dog, cat, American mink and polecat indicate use of the LPH by the species concerned. A possible pine marten record is also considered.

  2. Coastal wind study based on Sentinel-1 and ground-based scanning lidar

    DEFF Research Database (Denmark)

    Hasager, Charlotte Bay; Badger, Merete; Pena Diaz, Alfredo

    Energy (Badger et al. 2016) using GFS winds as input. Wind direction can be checked from the various other observations. Sensitivity to possible deviations in wind directions in the near-shore area will be investigated. Furthermore, oceanic features not related to winds but to e.g. surface current......, breaking waves, etc. will be investigated. The plan is to establish high-quality coastal wind speed cases based on Sentinel-1 for quantification of the coastal winds, for verification of wind resource modelling best practices in the coastal zone. The study is supported by RUNE and New European Wind Atlas...

  3. Identification and characterization of tandem repeats in exon III of dopamine receptor D4 (DRD4) genes from different mammalian species

    DEFF Research Database (Denmark)

    Larsen, Svend Arild; Mogensen, Line; Dietz, Rune

    2005-01-01

    tandem repeat, while a tandem repeat consisting of 27-bp modules was identified in a sequence from European badger. Both these tandem repeats were composed of 9-bp basic units, which were closely related with the 9-bp repeat modules identified in the mink and ferret. Tandem repeats could...... repeat being found. In the domestic cow and gray seal we identified tandem repeats composed of 36-bp modules, each consisting of two closely related 18-bp basic units. A tandem repeat consisting of 9-bp modules was identified in sequences from mink and ferret. In the European otter we detected an 18-bp...

  4. Twelfth symposium on biotechnology for fuels and chemicals: Program and abstracts

    Energy Technology Data Exchange (ETDEWEB)

    Scheitlin, F.M. (ed.)

    1990-01-01

    This report is the program and abstracts of the twelfth symposium on biotechnology for fuels and chemicals, held on May 7--11, 1990, at Gatlinburg, Tennessee. The symposium, sponsored by the Department of Energy, Oak Ridge National Laboratory, Solar Energy Research Institute, Badger Engineers, Inc., Gas Research Institute, and American Chemical Society, consists of five sessions: Session 1, thermal, chemical, and biological processing; Session 2 and 3, applied biological research; Session 4, bioengineering research; and Session 5, biotechnology, bioengineering, and the solution of environmental problems. It also consists of a poster session of the same five subject categories.

  5. Crenosoma vulpis in wild and domestic carnivores from Italy: a morphological and molecular study.

    Science.gov (United States)

    Latrofa, Maria Stefania; Lia, Riccardo Paolo; Giannelli, Alessio; Colella, Vito; Santoro, Mario; D'Alessio, Nicola; Campbell, Bronwyn Evelyn; Parisi, Antonio; Dantas-Torres, Filipe; Mutafchiev, Yasen; Veneziano, Vincenzo; Otranto, Domenico

    2015-10-01

    Crenosoma vulpis is a metastrongyloid nematode primarily associated with respiratory tract infections of red foxes in North America and Europe. Sporadic cases have also been reported in domestic dogs. The present study aimed to provide morphological, molecular, and epidemiological data on the geographical distribution of this nematode throughout Italy. From 2012 to 2014, 12 of the 138 foxes examined, three dogs and one badger scored positive for C. vulpis. Forty adults were isolated from foxes and the badger, whereas first-stage larvae were detected in the three dogs. All specimens were morphologically identified as C. vulpis, and 28 nematodes were also molecularly characterized by sequencing mitochondrial (12S ribosomal DNA (rDNA)) and nuclear (18S rDNA) ribosomal genes. Four haplotypes were identified based on the 12S rDNA target gene, with the most representative (78.5%) designated as haplotype I. No genetic variability was detected for the 18S rDNA gene. The molecular identification was consistent with the distinct separation of species-specific clades inferred by the phylogenetic analyses of both mitochondrial and ribosomal genes. Data herein reported indicates that C. vulpis has a wide distribution in foxes from southern Italy, and it also occurs in dogs from southern and northern regions of the country. Practitioners should consider the occurrence of this nematode in the differential diagnosis of canine respiratory disease, particularly in dogs living close to rural areas where foxes are present.

  6. Spargana in a weasel, Mustela sibirica manchurica, and a wild boar, Sus scrofa, from Gangwon-do, Korea.

    Science.gov (United States)

    Lee, Seung-Ha; Choe, Eun-Yoon; Shin, Hyun-Duk; Seo, Min

    2013-06-01

    To know the status of sparganum (plerocercoid of Spirometra erinacei) infection in the Korean wild life, several species of wild animals were captured in Gangwon-do and examined for their status of infection with spargana. From February to December 2011, a total of 62 wild boars, 5 badgers, 1 weasel, 1 Siberian chipmunk, and 53 wild rodents were captured, and their whole muscles were examined with naked eyes for the presence of spargana worms. From the weasel and 1 wild boar, a total of 5 spargana specimens were extracted. The weasel was for the first time recorded as an intermediate or paratenic/transport host of S. erinacei in Korea, and both the weasel (Mustela sibirica manchurica) and wild boar (Sus scrofa) were added to the list of wild animals carrying spargana.

  7. The application of qualitative research findings to oncology nursing practice.

    Science.gov (United States)

    Cuthbert, Colleen Ann; Moules, Nancy

    2014-11-01

    The Oncology Nursing Society (ONS) has established an ambitious research agenda and professional priorities based on a survey by LoBiondo-Wood et al. (2014). With the overall goal to "improve cancer care and the lives of individuals with cancer" (Moore & Badger, 2014, p. 93) through research activities, translating those research findings to direct clinical practice can be overwhelming. As clinicians, understanding how to critique research for quality prior to incorporating research findings into practice is important. The ultimate goal in this critique is to ensure that decisions made about patient care are based on strong evidence. However, the process for appraisal of qualitative research can be ambiguous and often contradictory as a result of the elusive aspect of quality in qualitative research methods (Seale, 1999). In addition, with more than 100 tools available to evaluate qualitative research studies (Higgins & Green, 2011), a lack of consensus exists on how to critically appraise research findings.

  8. Numerical evaluation of virtual corrections to multi-jet production in massless QCD

    DEFF Research Database (Denmark)

    Badger, S.; Yundin, V.; Biedermann, B.

    2013-01-01

    .7.4. Classification: 11.5. External routines: QCDLoop (http://qcdloop.fnal.gov/), qd (http://crd.lbl.gov/dhbailey/mpdist/), both included in the distribution file. Nature of problem:. Evaluation of virtual corrections for multi-jet production in massless QCD. Solution method:. Purely numerical approach based on tree......We present a C++ library for the numerical evaluation of one-loop virtual corrections to multi-jet production in massless QCD. The pure gluon primitive amplitudes are evaluated using NGluon (Badger et al., (2011) [62]). A generalized unitarity reduction algorithm is used to construct arbitrary...... amplitudes obtained via Berends-Giele recursion combined with unitarity method. Restrictions:. Full colour and helicity summed corrections only up to 5 final state jets. Running time:. Full colour and helicity summed 2 ¿ 4 channels take around 0.5-8 s per point depending on the number of fermion lines...

  9. Data on the parasitological status of golden jackal (Canis aureus L., 1758) in Hungary.

    Science.gov (United States)

    Takács, András; Szabó, László; Juhász, Lajos; Takács, András Attila; Lanszki, József; Takács, Péter Tamás; Heltai, Miklós

    2014-03-01

    In Hungary, twenty Canis aureus individuals were submitted to parasitological examinations in 2010-2012. Two Coccidia: Cystoisospora canis (15%) and Toxoplasma-type oocysts (5%), one Trematoda: Alaria alata (10%), six Cestoda: Mesocestoides lineatus (20%), Echinococcus granulosus (10%), Dipylidium caninums (5%), Taenia hydatigena (15%), Taenia pisiformis (20%), Taenia crassiceps (40%), and nine Nematoda: Angiostrongylus vasorum (10%), Crenosoma vulpis (30%), Capillaria aerophila (5%), Toxocara canis (20%), Toxascaris leonina (15%), Trichuris vulpis (10%), Ancylostoma caninum (45%), Uncinaria stenocephala (40%), Capillaria plica (45%) have been identified. Angiostronglyus vasorum has been reported from carnivores in Europe, Africa, South America and North America. The helminth A. vasorum or French heartworm is a metastrongylid nematode, widely distributed in Western Europe, that infects the pulmonary arterial tree of dogs, various species of foxes, wolves, Eurasian badgers, coyotes and stoats. To our knowledge, this is the first report of natural A. vasorum infection in golden jackal.

  10. 浙江省不同宿主来源狂犬病病毒N基因分子特征分析%Sequencing and analysis of N gene of street rabies virus isolated from different hosts in Zhejiang province

    Institute of Scientific and Technical Information of China (English)

    王晓光; 雷永良; 陶晓燕; 李浩; 申辛欣; 于鹏程; 尹翠萍; 孟胜利; 王欣莹

    2014-01-01

    目的 测定浙江省不同宿主(人、鼬獾、犬)来源的狂犬病病毒街毒株N基因序列,分析病毒遗传变异特征及其与流行的关系.方法 采用直接免疫荧光试验和反转录聚合酶链式反应检测狂犬病病毒阳性标本N基因核苷酸序列,利用生物信息学软件分析基因序列和编码蛋白.结果 共获得浙江省2个人源、5个鼬獾源和11个犬源狂犬病病毒街毒株N基因核苷酸序列,18个核苷酸和氨基酸序列同源性在89.7%~ 100.0%和98.4%~ 100.0%,N蛋白一级结构上绝大部分为稳定区域,编码基因的核苷酸变异多为无义突变,系统发育分析显示18个街毒株均属于传统的基因1型.结论 浙江省不同宿主来源狂犬病病毒的流行具有地域性特征,同类宿主动物病毒株或来自同一县域/相邻县域的毒株在地理位置上最为近缘,但人源株病毒更具有复杂性.浙江省狂犬病病毒街毒株的流行具有通过犬向鼬獾和人传播,并在犬、鼬獾中跨区域循环传播的特点.%Objective To elucidate the characteristics of genetic variability and its relationship with prevalence,through sequencing and analysis of N gene among street rabies virus isolated from different hosts (homo sapiens,ferret badger,dog) in Zhejiang province.Methods Samples were screened and confirmed by direct fluorescence assay and reverse transcript PCR.Sequences were analyzed using bio-information software.Results Eighteen street rabies virus strains were identified,including 2 from homo sapiens,5 from ferret badger,and 11 from dog.Similarities of N gene and N protein were calculated to be 89.7%-100.0% and 98.4%-100.0% respectively.Mutations occurred in N gene were almost non-sense mutations.In addition,Data from phylogenetic analysis showed that all these strains could be classified into traditional genotype 1.Conclusion The prevalence of rabies viruses among different hosts in Zhejiang province had certain regional

  11. Offshore wind power in the Aegean Sea

    DEFF Research Database (Denmark)

    Hasager, Charlotte Bay; Badger, Merete; Hahmann, Andrea N.

    hub heights at around 100 m using a combination of satellite wind fields and the long-term climate of atmospheric stability from the mesoscale model (Badger et al. 2016). The result of the mean wind speed at hub-height for the Aegean Sea is shown in Figure 1. The map shows the stability dependent...... winds (SDW). It is planned to combine the Envisat wind fields with Sentinel-1a and Sentinel-1b wind fields to further detail the offshore wind resource within the New European Wind Atlas. The work is in progress. Sentinel-1a images are processed at DTU Wind Energy near-real-time and we are updating our...

  12. Black-footed ferrets and recreational shooting influence the attributes of black-tailed prairie dog burrows

    Science.gov (United States)

    Biggins, Dean E.; Ramakrishnan, Shantini; Goldberg, Amanda R.; Eads, David A.

    2012-01-01

    Black-tailed prairie dogs (Cynomys ludovicianus) plug burrows occupied by black-footed ferrets (Mustela nigripes), and they also plug burrows to entomb dead prairie dogs. We further evaluated these phenomena by sampling connectivity and plugging of burrow openings on prairie dog colonies occupied by ferrets, colonies where recreational shooting was allowed, and colonies with neither shooting nor ferrets. We counted burrow openings on line surveys and within plots, classified surface plugging, and used an air blower to examine subsurface connectivity. Colonies with ferrets had lower densities of openings, fewer connected openings (suggesting increased subsurface plugging), and more surface plugs compared to colonies with no known ferrets. Colonies with recreational shooting had the lowest densities of burrow openings, and line-survey data suggested colonies with shooting had intermediate rates of surface plugging. The extent of surface and subsurface plugging could have consequences for the prairie dog community by changing air circulation and escape routes of burrow systems and by altering energetic relationships. Burrow plugging might reduce prairie dogs' risk of predation by ferrets while increasing risk of predation by American badgers (Taxidea taxus); however, the complexity of the trade-off is increased if plugging increases the risk of predation on ferrets by badgers. Prairie dogs expend more energy plugging and digging when ferrets or shooting are present, and ferrets increase their energy expenditures when they dig to remove those plugs. Microclimatic differences in plugged burrow systems may play a role in flea ecology and persistence of the flea-borne bacterium that causes plague (Yersinia pestis).

  13. Tuberculosis in alpaca (lama pacos on a farm in ireland. 2. results of an epidemiological investigation

    Directory of Open Access Journals (Sweden)

    Connolly DJ

    2008-08-01

    Full Text Available Abstract Tuberculosis (TB, due to infection with Mycobacterium bovis was diagnosed in a flock of alpaca in Ireland in 2004. An epidemiological investigation was conducted to identify the risk of TB for farmed alpaca where TB is endemic, the origin of the infection, the potential for alpaca-to-alpaca transmission and appropriate control measures. The investigation focused on the alpaca flock (including the farm, animal movements and breeding, feeding and flock health practice, the disease episode (including animal disease events and subsequent control measures and TB infection risk in the locality. The TB risk to alpaca is high in areas where infection is endemic in cattle and badgers and where biosecurity is inadequate. It is most likely that the source of infection for the alpaca was a local strain of M. bovis, present in cattle in this area since at least 2001. Genotyping of isolates identified a single variable number tandem repeat (VNTR profile in both cattle and alpaca in this region. Although a tuberculous badger was also removed from the vicinity, bacterial isolation was not attempted. On this farm, infection in alpaca was probably derived from a common source. Alpaca-to-alpaca transmission seems unlikely. Two broad control strategies were implemented, aimed at the rapid removal of infected (and potentially infectious animals and the implementation of measures to limit transmission. Tests that proved useful in detecting potentially-infected animals included measurement of the albumin-to-globulin ratio and regular body condition scoring. Skin testing was time consuming and unproductive, and early detection of infected animals remains a challenge. The flock was managed as a series of separate groupings, based on perceived infection risk. No further TB cases have been detected.

  14. Sensitivity of Bovine Tuberculosis Surveillance in Wildlife in France: A Scenario Tree Approach.

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    Julie Rivière

    Full Text Available Bovine tuberculosis (bTB is a common disease in cattle and wildlife, with an impact on animal and human health, and economic implications. Infected wild animals have been detected in some European countries, and bTB reservoirs in wildlife have been identified, potentially hindering the eradication of bTB from cattle populations. However, the surveillance of bTB in wildlife involves several practical difficulties and is not currently covered by EU legislation. We report here the first assessment of the sensitivity of the bTB surveillance system for free-ranging wildlife launched in France in 2011 (the Sylvatub system, based on scenario tree modelling. Three surveillance system components were identified: (i passive scanning surveillance for hunted wild boar, red deer and roe deer, based on carcass examination, (ii passive surveillance on animals found dead, moribund or with abnormal behaviour, for wild boar, red deer, roe deer and badger and (iii active surveillance for wild boar and badger. The application of these three surveillance system components depends on the geographic risk of bTB infection in wildlife, which in turn depends on the prevalence of bTB in cattle. We estimated the effectiveness of the three components of the Sylvatub surveillance system quantitatively, for each species separately. Active surveillance and passive scanning surveillance by carcass examination were the approaches most likely to detect at least one infected animal in a population with a given design prevalence, regardless of the local risk level and species considered. The awareness of hunters, which depends on their training and the geographic risk, was found to affect surveillance sensitivity. The results obtained are relevant for hunters and veterinary authorities wishing to determine the actual efficacy of wildlife bTB surveillance as a function of geographic area and species, and could provide support for decision-making processes concerning the enhancement

  15. Evolutionary and biogeographic history of weasel-like carnivorans (Musteloidea).

    Science.gov (United States)

    Sato, Jun J; Wolsan, Mieczyslaw; Prevosti, Francisco J; D'Elía, Guillermo; Begg, Colleen; Begg, Keith; Hosoda, Tetsuji; Campbell, Kevin L; Suzuki, Hitoshi

    2012-06-01

    We analyzed a concatenated (8492 bp) nuclear-mitochondrial DNA data set from 44 musteloids (including the first genetic data for Lyncodon patagonicus) with parsimony, maximum likelihood, and Bayesian methods of phylogenetic and biogeographic inference and two Bayesian methods of chronological inference. Here we show that Musteloidea emerged approximately 32.4-30.9 million years ago (MYA) in Asia, shortly after the greenhouse-icehouse global climate shift at the Eocene-Oligocene transition. During their Oligocene radiation, which proceeded wholly or mostly in Asia, musteloids diversified into four primary divisions: the Mephitidae lineage separated first, succeeded by Ailuridae and the divergence of the Procyonidae and Mustelidae lineages. Mustelidae arose approximately 16.1 MYA within the Mid-Miocene Climatic Optimum, and extensively diversified in the Miocene, mostly in Asia. The early offshoots of this radiation largely evolved into badger and marten ecological niches (Taxidiinae, Melinae, Mellivorinae, Guloninae, and Helictidinae), whereas the later divergences have adapted to other niches including those of weasels, polecats, minks, and otters (Mustelinae, Ictonychinae, and Lutrinae). Notably, and contrary to traditional beliefs, the morphological adaptations of badgers, martens, weasels, polecats, and minks each evolved independently more than once within Mustelidae. Ictonychinae (which is most closely related to Lutrinae) arose approximately 9.5-8.9 MYA, most likely in Asia, where it diverged into the Old World Ictonychini (Vormela, Poecilictis, Ictonyx, and Poecilogale) and New World Lyncodontini (Lyncodon and Galictis) lineages. Ictonychini presumably entered Africa during the Messinian Salinity Crisis (at the Miocene-Pliocene transition), which interposed the origins of this clade (approximately 6.5-6.0 MYA) and its African Poecilictis-Ictonyx-Poecilogale subclade (approximately 4.8-4.5 MYA). Lyncodontini originated approximately 2.9-2.6 MYA at the

  16. Knowledge and Attitude Level of Students about Solid Waste Recycling; Kashan University of Medical Sciences

    Directory of Open Access Journals (Sweden)

    Mazaheri Tehrani A.MSc,

    2016-03-01

    Full Text Available Aims Increasing of the population and development of urban areas, has led to solid waste generation increasing which is one of the problems and difficulties that put human and environmental health in danger. The aim of present study was to determine the knowledge and attitude level of Kashan University of Medical Sciences’ students about solid waste recycling. Instrument & Methods This cross-sectional study was carried out in the fall of 2012 at the Kashan University of Medical Sciences and all the 250 students studying at nursing, medical, and paramedical schools were participated in it. A researcher-made questionnaire consisting of 20 questions was used to determine the knowledge about and attitude toward solid waste recycling. Data was analyzed by ANOVA, Pearson correlation and independent T test. Findings The knowledge of students was the highest about the definition of recycling (84.4% and lowest about delivery of recycled materials to badgers (23.6%. Most medical (55.1% and paramedical (75.3% students had “weak” and most nursing students (47.1% had “moderate” knowledge about solid waste recycling. 69.2% of paramedical, 27.3% of medical and 25.5% of nursing students stated that “there is no information about recycling in the university courses”. Conclusion Most of the students of Kashan University of Medical Sciences have weak knowledge regarding to solid waste recycling and their knowledge are different among schools.

  17. Explicit Not Implicit Preferences Predict Conservation Intentions for Endangered Species and Biomes.

    Science.gov (United States)

    Echeverri, Alejandra; Callahan, Megan M; Chan, Kai M A; Satterfield, Terre; Zhao, Jiaying

    2017-01-01

    Conservation of biodiversity is determined in part by human preferences. Preferences relevant to conservation have been examined largely via explicit measures (e.g., a self-reported degree of liking), with implicit measures (e.g., preconscious, automatic evaluations) receiving relatively less attention. This is the case despite psychological evidence from other contexts that implicit preferences are more informative of behavior. Thus, the type of measure that predicts conservation intentions for biodiversity is unknown. We conducted three studies to examine conservation intentions in light of people's explicit and implicit preferences toward four endangered species (sea otter, American badger, caribou, yellow-breasted chat) and four biomes (forest, ocean, grassland, tundra). In Study 1 (n = 55), we found that people implicitly preferred caribou most, but explicitly preferred sea otter most, with a significant multiple regression where participants' explicit preferences dictated their stated intended donations for conservation of each species. In Study 2 (n = 57) we found that people implicitly and explicitly preferred forest and ocean over grassland and tundra. Explicit rather than implicit preferences predicted the intended donation for conservation of the ocean biome. Study 3 involved a broader online sample of participants (n = 463) and also found that explicit preferences dictated the intended donations for conservation of biomes and species. Our findings reveal discrepancies between implicit and explicit preferences toward species, but not toward biomes. Importantly, the results demonstrate that explicit rather than implicit preferences predict conservation intentions for biodiversity. The current findings have several implications for conservation and the communication of biodiversity initiatives.

  18. Estimating epidemiological parameters for bovine tuberculosis in British cattle using a Bayesian partial-likelihood approach.

    Science.gov (United States)

    O'Hare, A; Orton, R J; Bessell, P R; Kao, R R

    2014-05-22

    Fitting models with Bayesian likelihood-based parameter inference is becoming increasingly important in infectious disease epidemiology. Detailed datasets present the opportunity to identify subsets of these data that capture important characteristics of the underlying epidemiology. One such dataset describes the epidemic of bovine tuberculosis (bTB) in British cattle, which is also an important exemplar of a disease with a wildlife reservoir (the Eurasian badger). Here, we evaluate a set of nested dynamic models of bTB transmission, including individual- and herd-level transmission heterogeneity and assuming minimal prior knowledge of the transmission and diagnostic test parameters. We performed a likelihood-based bootstrapping operation on the model to infer parameters based only on the recorded numbers of cattle testing positive for bTB at the start of each herd outbreak considering high- and low-risk areas separately. Models without herd heterogeneity are preferred in both areas though there is some evidence for super-spreading cattle. Similar to previous studies, we found low test sensitivities and high within-herd basic reproduction numbers (R0), suggesting that there may be many unobserved infections in cattle, even though the current testing regime is sufficient to control within-herd epidemics in most cases. Compared with other, more data-heavy approaches, the summary data used in our approach are easily collected, making our approach attractive for other systems.

  19. Diborane release and structure distortion in borohydrides.

    Science.gov (United States)

    Callini, Elsa; Borgschulte, Andreas; Ramirez-Cuesta, Anibal Javier; Züttel, Andreas

    2013-01-21

    Hydrogen desorption from borohydrides is often accompanied by the release of diborane. The amount of diborane released as a byproduct during the decomposition of borohydrides scales inversely with the borohydride stability, which in turn depends on the electronegativity of the corresponding cation. We present a model based on the difference between the symmetric and asymmetric assembly of B(2)H(6) units at the surface. The origin of this reaction is the degree of distortion of the BH(4)(-) anions in the bulk, hitherto depending on the degree of ionization of the cation. A practical measure of the distortion is the range in which the stretching vibration modes appear, which is the difference in the energy of the stretching vibrations of hydrogen atoms with maximum different bonding lengths (Badger's rule). We propose from this relation that the diborane released from the surface of the relatively unstable LiZn(2)(BH(4))(5) is formed from a recombination of BH(2)(δ+) and BH(4)(δ-) units. Ultra high vacuum mass spectroscopy measurements support the presented model and clarify the decomposition of stable borohydrides, such as LiBH(4). The sublimation of borohydrides in UHV competes with their decomposition.

  20. On the correct name for some subfamilies of Mustelidae (Mammalia, Carnivora

    Directory of Open Access Journals (Sweden)

    Fabio Oliveira do Nascimento

    2014-01-01

    Full Text Available Mustelids (Mustelidae exhibit a wide morphological and ecological diversity, ranging from aquatic to semi arboreal and fossorial forms. It is the most diversity family in Carnivora, and this has promoted a great number of taxonomic arrangements for subfamilies, which can range from two to 15 depending on the author. The relatively recent use of molecular data has helped to elucidate the classification of mustelids, and eight subfamilies are currently recognized: Mustelinae, Galictinae, Helictidinae, Martinae, Melinae, Mellivorinae, Taxidiinae and Lutrinae. However, some of these subfamilies have nomenclatural problems, not receiving the oldest available name. The subfamily that includes martens (Martes, Charronia and Pekania, tayra (Eira and wolverine (Gulo has received the name of Martinae Wagner, 1841, but the oldest available name is Guloninae Gray, 1825. This problem also occurs for the subfamily that includes the grisons (Galictis, Patagonian weasel (Lyncodon, marbled polecat (Vormela and striped weasels (Ictonyx and Poecilogale, which are known as Grisoninae Pocock, 1921, but the correct name for this group is Ictonychinae, Pocock, 1921. The subfamily that includes ferret badgers (Melogale retains the name Helictidinae Gray, 1865, because its validity is not affected when the type-genus of the subfamily becomes a junior synonym of another genus. Furthermore, a list of the extant subfamilies of Mustelidae and their respective synonyms and included genera is provided.

  1. Raman effect in icosahedral boron-rich solids

    Directory of Open Access Journals (Sweden)

    Helmut Werheit, Volodymyr Filipov, Udo Kuhlmann, Ulrich Schwarz, Marc Armbrüster, Andreas Leithe-Jasper, Takaho Tanaka, Iwami Higashi, Torsten Lundström, Vladimir N Gurin and Maria M Korsukova

    2010-01-01

    Full Text Available We present Raman spectra of numerous icosahedral boron-rich solids having the structure of α-rhombohedral, β-rhombohedral, α-tetragonal, β-tetragonal, YB66, orthorhombic or amorphous boron. The spectra were newly measured and, in some cases, compared with reported data and discussed. We emphasize the importance of a high signal-to-noise ratio in the Raman spectra for detecting weak effects evoked by the modification of compounds, accommodation of interstitial atoms and other structural defects. Vibrations of the icosahedra, occurring in all the spectra, are interpreted using the description of modes in α-rhombohedral boron by Beckel et al. The Raman spectrum of boron carbide is largely clarified. Relative intra- and inter-icosahedral bonding forces are estimated for the different structural groups and for vanadium-doped β-rhombohedral boron. The validity of Badger's rule is demonstrated for the force constants of inter-icosahedral B–B bonds, whereas the agreement is less satisfactory for the intra-icosahedral B–B bonds.

  2. How a central bank perceives the (visual) communication of security features on its banknotes

    Science.gov (United States)

    Tornare, Roland

    1998-04-01

    The banknotes of earlier generations were protected by two or three security features with which the general public was familiar: watermark, security thread, intaglio printing. The remaining features pleased primarily printers and central banks, with little thought being given to public perception. The philosophy adopted two decades ago was based on a certain measure of discretion. It required patience and perseverance to discover the built-in security features of the banknotes. When colour photocopiers appeared on the scene in the mid- eighties we were compelled to take precautionary measures to protect our banknotes. One such measure consisted of an information campaign to prepare ourselves for this new potential threat. At this point, we actually became fully aware of the complex design of our banknotes and how difficult it is to communicate clearly the difference between a genuine and a counterfeit banknote. This difficult experience has nevertheless been a great benefit. It badgered us continually during the initial phase of designing the banknotes and preparing the information campaign.

  3. Preliminary safety analysis of the B-C Cribs Controlled Area. [Hanford Reservation

    Energy Technology Data Exchange (ETDEWEB)

    Maxfield, H.L.

    1974-07-31

    Approximately 2,000 acres of land in the center of the Hanford Reservation is contaminated with an estimated 14 Ci of /sup 137/Cs and 81 Ci of /sup 90/Sr associated with animal wastes. Approximately half of this activity is located on (or within) 2.5 centimeters of the ground surface. The source of the contamination was the B-C Cribs and trenches which were used as liquid radioactive waste disposal sites during the 1950's. The mechanism for movement of radionuclides from the disposal site to the ground surface is believed to have been burrowing by an animal (probably a badger) followed by use of the exposed material as a salt lick by rabbits and other animals. When the radioactivity was discovered, the burrow was sealed, the contaminated site was classed as a radiation zone, and surveillance initiated. The contamination site has not been a significant hazard to employees at the plant or to the public. The Atlantic Richfield Hanford Company maintained control over the surface contamination by isolation, zoning, and by continued surveillance. Methods of handling the contaminated area have been considered. Discussions of these alternatives and applicable safety analysis information are included in this document.

  4. Natural Propagation and Habitat Improvement, Volume I, Oregon, Supplement C, White River Habitat Inventory, 1983 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Heller, David

    1984-04-01

    More than 130 miles of stream fish habitat was inventoried and evaluated on the Mt. Hood National Forest during the first year of this multi-year project. First year tasks included field inventory and evaluation of habitat conditions on the White River and tributary streams thought to have the highest potential for supporting anadromous fish populations. All streams inventoried were located on the Mt. Hood National Forest. The surveyed area appears to contain most of the high quality anadromous fish habitat in the drainage. Habitat conditions appear suitable for steelhead, coho, and chinook salmon, and possibly sockeye. One hundred and twenty-four miles of potential anadromous fish habitat were identifed in the survey. Currently, 32 miles of this habitat would be readily accessible to anadromous fish. An additional 72 miles of habitat could be accessed with only minor passage improvement work. About 20 miles of habitat, however, will require major investment to provide fish passage. Three large lakes (Boulder, 14 acres; Badger, 45 acres; Clear, 550 acres) appear to be well-suited for rearing anadromous fish, although passage enhancement would be needed before self-sustaining runs could be established in any of the lakes.

  5. Evidence of the three main clonal Toxoplasma gondii lineages from wild mammalian carnivores in the UK.

    Science.gov (United States)

    Burrells, A; Bartley, P M; Zimmer, I A; Roy, S; Kitchener, A C; Meredith, A; Wright, S E; Innes, E A; Katzer, F

    2013-12-01

    Toxoplasma gondii is a zoonotic pathogen defined by three main clonal lineages (types I, II, III), of which type II is most common in Europe. Very few data exist on the prevalence and genotypes of T. gondii in the UK. Wildlife can act as sentinel species for T. gondii genotypes present in the environment, which may subsequently be transmitted to livestock and humans. DNA was extracted from tissue samples of wild British carnivores, including 99 ferrets, 83 red foxes, 70 polecats, 65 mink, 64 badgers and 9 stoats. Parasite DNA was detected using a nested ITS1 PCR specific for T. gondii, PCR positive samples were subsequently genotyped using five PCR-RFLP markers. Toxoplasma gondii DNA was detected within all these mammal species and prevalence varied from 6·0 to 44·4% depending on the host. PCR-RFLP genotyping identified type II as the predominant lineage, but type III and type I alleles were also identified. No atypical or mixed genotypes were identified within these animals. This study demonstrates the presence of alleles for all three clonal lineages with potential for transmission to cats and livestock. This is the first DNA-based study of T. gondii prevalence and genotypes across a broad range of wild British carnivores.

  6. Structure and bonding in crystalline cesium uranyl tetrachloride under pressure.

    Science.gov (United States)

    Osman, Hussien H; Pertierra, Pilar; Salvadó, Miguel A; Izquierdo-Ruiz, F; Recio, J M

    2016-07-21

    A thorough investigation of pressure effects on the structural properties of crystalline cesium uranyl chloride was performed by means of first-principles calculations within the density functional theory framework. Total energies, equilibrium geometries and vibrational frequencies were computed at selected pressures up to 50 GPa. Zero pressure results present good agreement with available experimental and theoretical data. Our calculated equation of state parameters reveal that Cs2UO2Cl4 is a high compressible material, similar to other ionic compounds with cesium cations, and displays a structural anisotropic behavior guided by the uranyl moiety. An unexpected variation of the U-O bond length, dUO, is detected as pressure is applied. It leads to a dUO-stretching frequency relationship that cannot be described by the traditional Badger's rule. Interestingly enough, it can be explained in terms of a change in the main factor controlling dUO. At low pressure, the charge transferred to the uranyl cation induces an increase of the bond length and a red shift of the stretching frequencies, whereas it is the mechanical effect of the applied pressure above 10 GPa that is the dominant factor that leads to a shortening of dUO and a blue shift of the stretching frequencies.

  7. A preliminary study of genetic factors that influence susceptibility to bovine tuberculosis in the British cattle herd.

    Directory of Open Access Journals (Sweden)

    Erin E Driscoll

    Full Text Available Associations between specific host genes and susceptibility to Mycobacterial infections such as tuberculosis have been reported in several species. Bovine tuberculosis (bTB impacts greatly the UK cattle industry, yet genetic predispositions have yet to be identified. We therefore used a candidate gene approach to study 384 cattle of which 160 had reacted positively to an antigenic skin test ('reactors'. Our approach was unusual in that it used microsatellite markers, embraced high breed diversity and focused particularly on detecting genes showing heterozygote advantage, a mode of action often overlooked in SNP-based studies. A panel of neutral markers was used to control for population substructure and using a general linear model-based approach we were also able to control for age. We found that substructure was surprisingly weak and identified two genomic regions that were strongly associated with reactor status, identified by markers INRA111 and BMS2753. In general the strength of association detected tended to vary depending on whether age was included in the model. At INRA111 a single genotype appears strongly protective with an overall odds ratio of 2.2, the effect being consistent across nine diverse breeds. Our results suggest that breeding strategies could be devised that would appreciably increase genetic resistance of cattle to bTB (strictly, reduce the frequency of incidence of reactors with implications for the current debate concerning badger-culling.

  8. Deduced sequences of the membrane fusion and attachment proteins of canine distemper viruses isolated from dogs and wild animals in Korea.

    Science.gov (United States)

    Bae, Chae-Wun; Lee, Joong-Bok; Park, Seung-Yong; Song, Chang-Seon; Lee, Nak-Hyung; Seo, Kun-Ho; Kang, Young-Sun; Park, Choi-Kyu; Choi, In-Soo

    2013-08-01

    Canine distemper virus (CDV) causes highly contagious respiratory, gastrointestinal, and neurological diseases in wild and domestic animal species. Despite a broad vaccination campaign, the disease is still a serious problem worldwide. In this study, six field CDV strains were isolated from three dogs, two raccoon dogs, and one badger in Korea. The full sequence of the genes encoding fusion (F) and hemagglutinin (H) proteins were compared with those of other CDVs including field and vaccine strains. The phylogenetic analysis for the F and H genes indicated that the two CDV strains isolated from dogs were most closely related to Chinese strains in the Asia-1 genotype. Another four strains were closely related to Japanese strains in the Asia-2 genotype. The six currently isolated strains shared 90.2-92.1% and 88.2-91.8% identities with eight commercial vaccine strains in their nucleotide and amino acid sequences of the F protein, respectively. They also showed 90.1-91.4% and 87.8-90.7% identities with the same vaccine strains in their nucleotide and deduced amino acid sequences of the H protein, respectively. Different N-linked glycosylation sites were identified in the F and H genes of the six isolates from the prototype vaccine strain Onderstepoort. Collectively, these results demonstrate that at least two different CDV genotypes currently exist in Korea. The considerable genetic differences between the vaccine strains and wild-type isolates would be a major factor of the incomplete protection of dogs from CDV infections.

  9. The competitor release effect applied to carnivore species: how red foxes can increase in numbers when persecuted

    Directory of Open Access Journals (Sweden)

    Lozano, J.

    2013-01-01

    Full Text Available The objective of our study was to numerically simulate the population dynamics of a hypothetical community of three species of small to medium–sized carnivores subjected to non–selective control within the context of the competitor release effect (CRE. We applied the CRE to three carnivore species, linking interspecific competition with predator control efforts. We predicted the population response of European badger, the red fox and the pine marten to this wildlife management tool by means of numerical simulations. The theoretical responses differed depending on the intrinsic rate of growth (r, although modulated by the competition coefficients. The red fox, showing the highest r value, can increase its populations despite predator control efforts if control intensity is moderate. Populations of the other two species, however, decreased with control efforts, even reaching extinction. Three additional theoretical predictions were obtained. The conclusions from the simulations were: 1 predator control can play a role in altering the carnivore communities; 2 red fox numbers can increase due to control; and 3 predator control programs should evaluate the potential of unintended effects on ecosystems.

  10. A 10-year wildlife survey of 15 species of Canadian carnivores identifies new hosts or geographic locations for Trichinella genotypes T2, T4, T5, and T6.

    Science.gov (United States)

    Gajadhar, Alvin A; Forbes, Lorry B

    2010-02-26

    A survey of wild carnivores in Canada was conducted over a 10-year period to determine the prevalence and genotypes of Trichinella. Muscle samples collected from 1409 animals representing 15 hosts species were enzymatically digested to recover Trichinella larvae. Larvae were recovered from a total of 287 (20.4%) animals and PCR identified four genotypes of Trichinella. Trichinella nativa was found in 5 host species and was the most commonly found genotype. Trichinella T6 was present in 7 species of carnivores, and coyote and badger are new host records for this genotype. The recovery of T. pseudospiralis and T. murrelli from cougars is the first documentation of these species in Canada and in cougars. The cougar was also the only host species in which all four genotypes of Trichinella were identified. Black bears and walruses had the highest tissue levels of larvae in this study and are also the species most frequently associated with human trichinellosis in Canada. This work identifies additional host species and expanded geographic ranges for 4 genotypes of Trichinella in North America. Failure to demonstrate T. spiralis in wildlife and continued negative results from ongoing surveillance activities in swine provide additional evidence that T. spiralis is not present in Canada.

  11. Performance of the plant-based repellent TT-4302 against mosquitoes in the laboratory and field and comparative efficacy to 16 mosquito repellents against Aedes aegypti (Diptera: Culicidae).

    Science.gov (United States)

    Bissinger, B W; Schmidt, J P; Owens, J J; Mitchell, S M; Kennedy, M K

    2014-03-01

    Repellent efficacy of the plant-based repellent, TT-4302 (5% geraniol), was compared with 16 other products in laboratory arm-in-cage trials against Aedes aegypti (L). Eight repellents (Badger, BioUD, Burt's bees, California Baby, Cutter Natural, EcoSMART, Herbal Armor, and SkinSmart) exhibited a mean repellency below 90% to Ae. aegypti at 0.5 h after application. Three repellents (Buzz Away Extreme, Cutter Advanced, and OFF! Botanicals lotion) fell below 90% repellency 1.5 h after application. TT-4302 exhibited 94.7% repellency 5 h posttreatment, which was a longer duration than any of the other repellents tested. The positive control, 15% DEET (OFF! Active), was repellent for 3 h before activity dropped below 90%. Additional arm-in-cage trials comparing TT-4302 with 15% DEET were carried out against Anopheles quadrimaculatus Say. At 6 h after treatment, TT-4302 provided 95.2% repellency while DEET exhibited 72.2%. In North Carolina field trials, TT-4302 provided 100% repellency 5 h after application against Aedes albopictus Skuse while DEET provided 77.6% repellency. These results demonstrate that TT-4302 is an efficacious plant-based repellent that provides an extended duration of protection compared with many other commercially available products.

  12. Reading into lesser bibliography of rare mustelids (Eastern Europe

    Directory of Open Access Journals (Sweden)

    Jerzy Romanowski

    1995-12-01

    Full Text Available Abstract Many research and conservation efforts on rare mustelids in Eastern Europe, Russia and states of CIS are in progress. On a total of 640 publications examined, the otter (428 and the European mink (195 were the most studied species, the Steppe and Marbled polecats (89 and 83 entries, and Honey-badger (24 were less considered. Titles written in national languages dominate, but a recent increase in the ratio of publications written or summarized in English or German was noted. Based on number and profile of publications, it is suggested that conservation of European mink requires more efforts and research. Riassunto Bibliografia poco nota sui Mustelidi rari (Europa orientale - Nei paesi dell'Europa dell'Est, Russia e stati del CIS inclusi, le ricerche e le iniziative di conservazione riguardanti i mustelidi rari sono in progresso. Dall'esame di 640 pubblicazioni, Lutra lutra (428 e Mustela lutreola (195 sono le specie più studiate, mentre meno considerate sono M. erversmanni (89, Vormela peregusna (83 e Mellivora capensis (24. Buona parte dei lavori è in lingua originale, ma recentemente è in incremento il numero di pubblicazioni scritte o riassunte in inglese o tedesco. Sulla base del numero dei lavori e dei temi trattati, si evidenzia che la conservazione del visone europeo richiederebbe maggiori sforzi e ricerche.

  13. Mammalian fauna of the Temessos National Park, Turkey

    Directory of Open Access Journals (Sweden)

    Anna De Marinis

    2009-12-01

    Full Text Available The National Park of Termessos, Southern Turkey, is one of the Turkey’s biggest national park not only with its archeological richness but also with its great natural wild life. We provided a checklist of the mammalian fauna of the park on the base of direct observations, interviews and a comparative analysis of the available literature. Sixteen species have been reported in the park. Hedgehogs, hares, porcupines and Persian squirrels and, among flying mammals, Egyptian rousette and Mouse-eared bat have been recorded. Carnivores are represented by Golden jackal, Wolf, Red fox, Stone marten, Badger, Otter and Wild cat. Very recently (2005 the presence of the Caracal in the park has been confirmed, whereas no signs of the presence of the Lynx were detected. The last Anatolian leopards seems to have definitively disappeared from the region. The occurrence in the area of striped hyaenas and brown bears is documented up to a few decades ago. The Park is regarded as the only geographical range in the whole world where the European or Common fallow deer has persisted as a native form. Other ungulates too, such as Wild goat and Wild boar are dispersed within the boundary of the park. Management implications are discussed.

  14. Epizootic canine distemper virus infection among wild mammals.

    Science.gov (United States)

    Kameo, Yuki; Nagao, Yumiko; Nishio, Yohei; Shimoda, Hiroshi; Nakano, Hitoshi; Suzuki, Kazuo; Une, Yumi; Sato, Hiroshi; Shimojima, Masayuki; Maeda, Ken

    2012-01-27

    In the spring of 2007, seven raccoon dogs and a weasel were captured near the city of Tanabe in Wakayama prefecture, Japan. The causative agent of the animals' death 1-2 days after capture was identified as canine distemper virus (CDV) by virus isolation, immunostaining with an anti-CDV polyclonal antibody, and a commercially available CDV antigen-detection kit. Sequence analysis of hemagglutinin genes indicated the isolated viruses belong to genotype Asia-1 and possess the substitution from tyrosine (Y) to histidine (H) at position 549 that is associated with the spread of CDV to non-canine hosts. A serosurvey for CDV was then conducted among wild animals in the region. The animals assayed consisted of 104 raccoons, 41 wild boars, 19 raccoon dogs, five Sika deer, two badgers, one weasel, one marten, one Siberian weasel and one fox. Virus-neutralization (VN) tests showed that, except for fox and weasel, all of the species assayed had VN antibodies to CDV. Interestingly, 11 of the 41 wild boars (27%) and two of the five Sika deer assayed possessed VN antibodies to CDV. These findings indicate that CDV infection was widespread among wild mammals during this epizootic.

  15. Comparison of Arcobacter isolation methods, and diversity of Arcobacter spp. in Cheshire, United Kingdom.

    Science.gov (United States)

    Merga, J Y; Leatherbarrow, A J H; Winstanley, C; Bennett, M; Hart, C A; Miller, W G; Williams, N J

    2011-03-01

    The aims of this study were, firstly, to compare five published methods for the isolation of Arcobacter spp. from animal feces in order to determine the most sensitive and specific method. Second, we analyzed the resulting isolates by multilocus sequence typing (MLST) in order to investigate the diversity of the isolates recovered. Third, we investigated the ability to recover Arcobacter spp. from frozen fecal samples. Seventy-seven fecal samples from cattle, sheep, and badgers were subjected to five isolation methods, based on published methods for the isolation of Arcobacter and Campylobacter spp. Thirty-nine Arcobacter butzleri isolates were analyzed using a multilocus sequence typing scheme. The survival of Arcobacter spp. in frozen samples was investigated by freezing the fecal samples at -80°C for 7 days and then applying the same five isolation methods. The most sensitive and specific method used an Arcobacter-specific broth in conjunction with modified charcoal cefoperazone deoxycholate agar (mCCDA) with added antibiotics. Freezing of fecal samples led to a reduction in the recovery of Arcobacter spp. by approximately 50%. The 39 allelic profiles obtained by MLST could be divided into 11 sequence types (STs). We have identified the most sensitive and specific method for the isolation of Arcobacter spp. from animal feces and demonstrated that the freezing of fecal samples prior to isolation reduces arcobacter recovery. MLST analysis of the isolates revealed a high level of diversity.

  16. Structure of the mtDNA control region and phylogeny of the Mustelidae species%鼬科动物线粒体DNA控制区结构分析

    Institute of Scientific and Technical Information of China (English)

    张洪海; 徐纯柱; 马建章

    2009-01-01

    Complete sequences of the mitochondrial DNA control region from Sable and Yellow-throated marten were amplified by Polymerase Chain Reaction (PCR), and were aligned by ClustalX with nine other species of Mustelidae from GenBank. According to the alignment, three domains, the extended termination associated sequence domain (ETAS), the central domain (CD) and the conserved sequence block domain (CSB), were identified in the mtDNA control region of Mustelidae. A extended termination associated sequence(ETAS1) and eight conserved sequence(CSB-F, E, D, C, B, 1, 2, 3) were identified, and mode of sequence was provided. Different kinds of short repetitive sequences were found between CSB1 and CSB2. Moreover, the phylogenetic evolution relationship of Mustelidae was analyzed using the neighbor-joining(NJ) method with the Wolf as the outgroup,. The results showed that Mephitinae was divided from Mustelidae firstly, and then the others were divided into two branches. The species of Martes and Wolverine were contained in one branch which was formed a sister group with Eurasian badger of Melinae;The species of Lutrinae and Polecat of Mustela formed a sister group, and Marbled polecat was sister to the clade of Lutrinae species and Polecat. They formed another branch. Eurasian badger has the closest relationship with the Sable of Martes, and Lutrinae has the closest relationship with Mustela.%利用PCR技术获得紫貂(Martes zibellina)和黄喉貂(Martes flavigula)线粒体DNA控制区全序列,并结合从GenBank中下载的9种鼬科动物相应序列,用ClustalX排序后对控制区结构进行分析,识别出延长终止序列区、中央区和保守序列区3个区域,指出了一个终止相关序列ETAS1及8个保守序列(CSB-F、E、D、C、B、1、2和3),并给出了序列通式,在CSB1和CSB2之间发现不同形式的短重复序列.此外,以狼为外类群,应用邻接法构建鼬科线粒体控制区全序列的系统进化树,结果表明:臭鼬亚科最先

  17. Lyssaviruses and rabies: current conundrums, concerns, contradictions and controversies

    Science.gov (United States)

    Rupprecht, Charles; Kuzmin, Ivan; Meslin, Francois

    2017-01-01

    Lyssaviruses are bullet-shaped, single-stranded, negative-sense RNA viruses and the causative agents of the ancient zoonosis rabies. Africa is the likely home to the ancestors of taxa residing within the Genus Lyssavirus, Family Rhabdoviridae. Diverse lyssaviruses are envisioned as co-evolving with bats, as the ultimate reservoirs, over seemingly millions of years. In terms of relative distribution, overt abundance, and resulting progeny, rabies virus is the most successful lyssavirus species today, but for unknown reasons. All mammals are believed to be susceptible to rabies virus infection. Besides reservoirs among the Chiroptera, meso-carnivores also serve as major historical hosts and are represented among the canids, raccoons, skunks, mongooses, and ferret badgers.  Perpetuating as a disease of nature with the mammalian central nervous system as niche, host breadth alone precludes any candidacy for true eradication. Despite having the highest case fatality of any infectious disease and a burden in excess of or comparative to other major zoonoses, rabies remains neglected. Once illness appears, no treatment is proven to prevent death. Paradoxically, vaccines were developed more than a century ago, but the clear majority of human cases are unvaccinated. Tens of millions of people are exposed to suspect rabid animals and tens of thousands succumb annually, primarily children in developing countries, where canine rabies is enzootic. Rather than culling animal populations, one of the most cost-effective strategies to curbing human fatalities is the mass vaccination of dogs. Building on considerable progress to date, several complementary actions are needed in the near future, including a more harmonized approach to viral taxonomy, enhanced de-centralized laboratory-based surveillance, focal pathogen discovery and characterization, applied pathobiological research for therapeutics, improved estimates of canine populations at risk, actual production of required

  18. The importance of 'neighbourhood' in the persistence of bovine tuberculosis in Irish cattle herds.

    Science.gov (United States)

    White, Paul W; Martin, S Wayne; De Jong, Mart C M; O'Keeffe, James J; More, Simon J; Frankena, Klaas

    2013-07-01

    Local persistence of infection is a key feature of bovine tuberculosis (bTB) among cattle herds in the Republic of Ireland. The aim of this study was to determine the relative importance of 'neighbourhood', specifically farm-to-farm spread and spread from wildlife, in the persistence of bTB by investigating herds having a bTB episode in 2006. A case-control study was conducted on the association between the occurrence of a bTB episode in 2006 and the occurrence of bTB in previous years among neighbouring herd(s) within 1 km, while controlling for each herd's bTB history and other risk factors. Neighbouring herds were grouped into three zones, based on distance, and bTB incidence measures summarised within each zone and by calendar year (2001-2005). The incidence of bTB was associated with an increased animal incidence in two subsets of neighbouring herds: (i) herds directly contiguous during the previous 2 years (attributable fraction=0.20), and (ii) herds at a distance of >25 m in the previous year (attributable fraction=0.19). Other predictors of bTB in a herd in 2006 included the occurrence of a bTB episode within that herd in any of the previous 5 years, herd size, and the number of animals purchased at age greater than 12 months. An infected wildlife source best explains the existence of a "neighbouring herd risk" for bTB at distances greater than 25 m. Further studies will be necessary to determine to what extent neighbouring herd risk within 25 m may be confounded by the same wildlife (badger) source.

  19. Mass Communication and Mass Media: A Concept of Game Theory Approach

    Directory of Open Access Journals (Sweden)

    H. Tafazzoli

    2015-10-01

    Full Text Available From the historical point of view, the formation and evolution of media in the form that we know today, and according to the age of several thousands of years of human's social life on the soil planet, has changed to reality later. This has happened while the media has evolved in a larger scale with an incredible speed. In those far periods of time the wide propagation and distribution of information to the lots of contacts was not possible because of technical limitations. But people were trying to communicate in a limited form with each other and with their contacts by using other methods. This communication didn't go beyond the human's voice. Through experience they have learnt that if they make a horn with their hands and speak loudly in it from its narrow part, attracts the contact that is further than the usual sound board. But with society's being more complicated, giving information in the shortest time became very important. Various methods of transferring information were formed according to the technology and facilities. In middle ages the bellmen, the singers and the badger storytellers had the duty of information exchange by poems and proverbs, or news and information were written on the animal skin or clay or stone tablets for the distribution and propagation of news. But bringing news and information with primary tools for the contacts were along with some barriers, because their duplication was a hard, time consuming and costly task. Scholars and rulers had found that when the political and governmental information and news reaching time is shorter, consequently its effects on the contacts and their reaction toward the received data would be more.

  20. Sharp-Tailed Grouse Nest Survival and Nest Predator Habitat Use in North Dakota’s Bakken Oil Field

    Science.gov (United States)

    2017-01-01

    Recent advancements in extraction technologies have resulted in rapid increases of gas and oil development across the United States and specifically in western North Dakota. This expansion of energy development has unknown influences on local wildlife populations and the ecological interactions within and among species. Our objectives for this study were to evaluate nest success and nest predator dynamics of sharp-tailed grouse (Tympanuchus phasianellus) in two study sites that represented areas of high and low energy development intensities in North Dakota. During the summers of 2012 and 2013, we monitored 163 grouse nests using radio telemetry. Of these, 90 nests also were monitored using miniature cameras to accurately determine nest fates and identify nest predators. We simultaneously conducted predator surveys using camera scent stations and occupancy modeling to estimate nest predator occurrence at each site. American badgers (Taxidea taxus) and striped skunks (Mephitis mephitis) were the primary nest predators, accounting for 56.7% of all video recorded nest depredations. Nests in our high intensity gas and oil area were 1.95 times more likely to succeed compared to our minimal intensity area. Camera monitored nests were 2.03 times more likely to succeed than non-camera monitored nests. Occupancy of mammalian nest predators was 6.9 times more likely in our study area of minimal gas and oil intensity compared to the high intensity area. Although only a correlative study, our results suggest energy development may alter the predator community, thereby increasing nest success for sharp-tailed grouse in areas of intense development, while adjacent areas may have increased predator occurrence and reduced nest success. Our study illustrates the potential influences of energy development on the nest predator—prey dynamics of sharp-tailed grouse in western North Dakota and the complexity of evaluating such impacts on wildlife. PMID:28081245

  1. Final voluntary release assessment/corrective action report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-11-12

    The US Department of Energy, Carlsbad Area Office (DOE-CAO) has completed a voluntary release assessment sampling program at selected Solid Waste Management Units (SWMUs) at the Waste Isolation Pilot Plant (WIPP). This Voluntary Release Assessment/Corrective Action (RA/CA) report has been prepared for final submittal to the Environmental protection Agency (EPA) Region 6, Hazardous Waste Management Division and the New Mexico Environment Department (NMED) Hazardous and Radioactive Materials Bureau to describe the results of voluntary release assessment sampling and proposed corrective actions at the SWMU sites. The Voluntary RA/CA Program is intended to be the first phase in implementing the Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) and corrective action process at the WIPP. Data generated as part of this sampling program are intended to update the RCRA Facility Assessment (RFA) for the WIPP (Assessment of Solid Waste Management Units at the Waste Isolation Pilot Plant), NMED/DOE/AIP 94/1. This Final Voluntary RA/CA Report documents the results of release assessment sampling at 11 SWMUs identified in the RFA. With this submittal, DOE formally requests a No Further Action determination for these SWMUs. Additionally, this report provides information to support DOE`s request for No Further Action at the Brinderson and Construction landfill SWMUs, and to support DOE`s request for approval of proposed corrective actions at three other SWMUs (the Badger Unit Drill Pad, the Cotton Baby Drill Pad, and the DOE-1 Drill Pad). This information is provided to document the results of the Voluntary RA/CA activities submitted to the EPA and NMED in August 1995.

  2. A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of Pinnipedia.

    Science.gov (United States)

    Rybczynski, Natalia; Dawson, Mary R; Tedford, Richard H

    2009-04-23

    Modern pinnipeds (seals, sea lions and the walrus) are semi-aquatic, generally marine carnivores the limbs of which have been modified into flippers. Recent phylogenetic studies using morphological and molecular evidence support pinniped monophyly, and suggest a sister relationship with ursoids (for example bears) or musteloids (the clade that includes skunks, badgers, weasels and otters). Although the position of pinnipeds within modern carnivores appears moderately well resolved, fossil evidence of the morphological steps leading from a terrestrial ancestor to the modern marine forms has been weak or contentious. The earliest well-represented fossil pinniped is Enaliarctos, a marine form with flippers, which had appeared on the northwestern shores of North America by the early Miocene epoch. Here we report the discovery of a nearly complete skeleton of a new semi-aquatic carnivore from an early Miocene lake deposit in Nunavut, Canada, that represents a morphological link in early pinniped evolution. The new taxon retains a long tail and the proportions of its fore- and hindlimbs are more similar to those of modern terrestrial carnivores than to modern pinnipeds. Morphological traits indicative of semi-aquatic adaptation include a forelimb with a prominent deltopectoral ridge on the humerus, a posterodorsally expanded scapula, a pelvis with relatively short ilium, a shortened femur and flattened phalanges, suggestive of webbing. The new fossil shows evidence of pinniped affinities and similarities to the early Oligocene Amphicticeps from Asia and the late Oligocene and Miocene Potamotherium from Europe. The discovery suggests that the evolution of pinnipeds included a freshwater transitional phase, and may support the hypothesis that the Arctic was an early centre of pinniped evolution.

  3. Effects of food supplementation on depredation of duck nests in prairies by striped skunks

    Science.gov (United States)

    Greenwood, R.J.; Pietruszewski, D.G.; Crawford, R.D.

    1998-01-01

    We examined provision of supplemental food as a method for reducing depredation of upland-duck nests, especially by striped skunks (Mephitis mephitis). Predators negatively influence duck recruitment in grassland ecosystems. Managers are in search of methods, particularly nonlethal methods, for reducing nest depredation. We conducted this study on 24 areas managed for wildlife production in the Prairie Pothole Region of central North Dakota during 1993-1994. We provided a mix of fish offal and sunflower seeds on 12 areas; no food was provided on the remaining 12 control areas. Although we observed a tendency during both years for higher nest success rates on provisioned areas ( = 46%, 1993; 36%, 1994) than on control areas ( = 27%, 1993; 31%, 1994), mean nest success rates (Mayfield 1961) overall did not differ significantly between food-provisioned areas ( = 41%) and control areas ( = 29%). Striped skunk depredation rate was lower on food-provisioned areas (11%) than on control areas (24%), suggesting that skunks reduced their consumption of eggs when provided with a food supplement. In 1994, habitat conditions were optimal, and ducks nested persistently into the summer when nest success rates of food-provisioned areas and control areas differed by only 5 percentage points. That year American badgers (Taxidea taxus) and Franklin's ground squirrels (Spermophilus franklinii) apparently compensated for reduced depredation by skunks. Thus, although skunks and other mammalian predators seem to have responded positively to food provisioning, nest depredations overall did not change. Provision of supplemental food apparently has limited value for managing depredation of upland duck nests in the Prairie Pothole Region where predator communities are complex.

  4. Ionic bonding of lanthanides, as influenced by d- and f-atomic orbitals, by core-shells and by relativity.

    Science.gov (United States)

    Ji, Wen-Xin; Xu, Wei; Schwarz, W H Eugen; Wang, Shu-Guang

    2015-03-15

    Lanthanide trihalide molecules LnX3 (X = F, Cl, Br, I) were quantum chemically investigated, in particular detail for Ln = Lu (lutetium). We applied density functional theory (DFT) at the nonrelativistic and scalar and SO-coupled relativistic levels, and also the ab initio coupled cluster approach. The chemically active electron shells of the lanthanide atoms comprise the 5d and 6s (and 6p) valence atomic orbitals (AO) and also the filled inner 4f semivalence and outer 5p semicore shells. Four different frozen-core approximations for Lu were compared: the (1s(2) -4d(10) ) [Pd] medium core, the [Pd+5s(2) 5p(6) = Xe] and [Pd+4f(14) ] large cores, and the [Pd+4f(14) +5s(2) 5p(6) ] very large core. The errors of LuX bonding are more serious on freezing the 5p(6) shell than the 4f(14) shell, more serious upon core-freezing than on the effective-core-potential approximation. The LnX distances correlate linearly with the AO radii of the ionic outer shells, Ln(3+) -5p(6) and X(-) -np(6) , characteristic for dominantly ionic Ln(3+) -X(-) binding. The heavier halogen atoms also bind covalently with the Ln-5d shell. Scalar relativistic effects contract and destabilize the LuX bonds, spin orbit coupling hardly affects the geometries but the bond energies, owing to SO effects in the free atoms. The relativistic changes of bond energy BE, bond length Re , bond force k, and bond stretching frequency vs do not follow the simple rules of Badger and Gordy (Re ∼BE∼k∼vs ). The so-called degeneracy-driven covalence, meaning strong mixing of accidentally near-degenerate, nearly nonoverlapping AOs without BE contribution is critically discussed.

  5. Molecular identification of nematode larvae different from those of the Trichinella genus detected by muscle digestion.

    Science.gov (United States)

    Marucci, Gianluca; Interisano, Maria; La Rosa, Giuseppe; Pozio, Edoardo

    2013-05-20

    Although larvae of the genus Trichinella are the most common parasite species detected in vertebrate muscles using artificial digestion, nematode larvae belonging to other genera are sometimes detected and incorrectly identified as Trichinella. However, it is often very difficult to identify these larvae at the species, genus or family level using microscopy because of the absence of specific morphological characters or cuticle damage, and the only means of identification is PCR and sequencing of specific molecular markers (12S mtDNA; COI; 18S rDNA; and ITS1). From 2008 to 2011, 18 nematode isolates not belonging to the genus Trichinella were collected from different host species. Eleven of these isolates were successfully identified at the species, genus or superfamily level: larvae from two common kestrels, three hooded crows, a hen harrier and a domestic pig were identified as Toxocara cati; larvae from a badger were identified as Toxocara canis; larvae from a domestic pig were identified as a free-living nematode of the genus Panagrolaimus; larvae from a wild boar were identified as belonging to the Metastrongylus genus; and larvae from a rough-legged buzzard were identified as belonging to the superfamily Filarioidea. The recovery of nematodes belonging to genera other than Trichinella during routine meat inspection suggests that the persons performing the analyses need to be informed of the possibility of false positives and that a molecular-based identification system that allows for a rapid and reliable response must be adopted (i.e., a DNA barcoding-like system).

  6. Consultation with First Nations stakeholders : an Alberta perspective

    Energy Technology Data Exchange (ETDEWEB)

    Rutwind, S. [Alberta Justice, Edmonton, AB (Canada). Aboriginal Law

    2005-07-01

    Aboriginal issues present risks and challenges to resource development in Alberta. This paper provided an overview of significant precedents and acts which may impact on oil and gas activities. The Constitution Act of 1982 acknowledged that existing Aboriginal and treaty rights of the Aboriginal peoples of Canada were recognized and confirmed. In the case of R v. Sparrow, justification was established where there was a valid legislative objective, such as conservation and resource management, and a precedent was set regarding the interpretation of disputes of section 35 subsection 1 concerning legal restriction of the exercise of treaty rights, such as hunting and fishing. In R v. Badger, the Supreme Court of Canada (SCC) advised that the framework applied to treaty rights as well as Aboriginal rights. The Natural Resources Transfer Agreement transferred powers over natural resources from Canada to Alberta in relation to hunting rights. Proof of rights issues were discussed in Taku River Tlingit First Nation v. Tulesequa Chief Mine Project, as well as in Haida Nation v. British Columbia, where it was concluded that an Aboriginal right need not be proven before a duty to consult arises. A review of Alberta's consultation practices was presented, as well as the Aboriginal issues and resource development initiative, which recognizes the importance of consultation with affected Aboriginal people and communities when regulatory and development activities infringe their existing treaty and other constitutional rights, such as the rights to hunt, fish and trap for food. Details of the Consultation Coordination Group were presented. A draft of the Government of Alberta's First Nations Consultation Policy on Land Management and Resource Development was also presented. tabs, figs.

  7. Determing Lamprey Species Composition, Larval Distribution, and Adult Abundance in the Deschutes River, Oregon, Subbasin; 2005-2006 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Graham, Jennifer C.; Brun, Christopher V. (Confederated Tribes of the Warm Springs Reservation of Oregon, Department of Natural Resources, John Day, OR)

    2006-05-01

    Information about lamprey species composition, distribution, life history, abundance, habitat requirements, and exploitation in the lower Deschutes River Subbasin is extremely limited. During 2002, we began a multi-year study to assess the status of lamprey in the Deschutes River subbasin. The objectives of this project are to determine ammocoete (larval lamprey) distribution and associated habitats; Lampretra species composition; numbers of emigrants; adult escapement and harvest rates at Sherars Falls. This report describes the preliminary results of data collected during 2005. We continued documenting ammocoete (larval) habitat selection by surveying four perennial eastside tributaries to the Deschutes River (Warm Springs River, Badger, Beaver and Shitike creeks) within the known ammocoete distribution. The results of 2003-2005 sampling indicate that positive relationships exist between: presence of wood (P = < 0.001), depositional area (P = < 0.001), flow (P = < 0.001), and fine substrate (P = < 0.001). Out-migrants numbers were not estimated during 2005 due to our inability to recapture marked larvae. In Shitike Creek, ammocoete and microphthalmia out-migration peaked during November 2005. In the Warm Spring River, out-migration peaked for ammocoetes in April 2006 and December 2005 for microphthalmia. Samples of ammocoetes from each stream were retained in a permanent collection of future analysis. An escapement estimate was generated for adult Pacific lamprey in the lower Deschutes River using a two event mark-recapture experiment during run year 2005. A modified Peterson model was used to estimate the adult population of Pacific lamprey at 3,895 with an estimated escapement of 2,881 during 2005 (95% CI= 2,847; M = 143; C = 1,027 R = 37). A tribal creel was also conducted from mid-June through August. We estimated tribal harvest to be approximately 1,015 adult lamprey during 2005 (95% CI= +/- 74).

  8. Carnivores from the Middle Miocene Ngorora Formation (13-12 Ma, Kenya

    Directory of Open Access Journals (Sweden)

    Pickford, M.

    2005-12-01

    Full Text Available The late Middle Miocene Ngorora Formation has yielded several interesting carnivore fossils. Among these are a huge creodont, Megistotherium osteothlastes, at 12 Ma, possibly the youngest record of the species, an amphicyonid, two species of mustelids (an otter and a honey badger, two kinds of viverrids (one about the size of a civet, one the size of a genet and an extremely small herpestid the size of a dwarf mongoose. It has also yielded remains of a moderate sized percrocutid. Perhaps the most interesting carnivore is a new genus and species of bundont viverrid that is intermediate in size and morphology between Early Miocene Orangictis on the one hand and Plio-Pleistocene Pseudocivetta on the other. This lineage of bundont viverrids appears to have been restricted to Africa.La Formación Mioceno medio final de Ngorora (Kenia ha suministrado carnívoros muy interesantes. Entre los que se encuentran un enorme creodonto, Megistotherium osteothlastes, de 12 Ma, que posiblemente es el registro más moderno de la especie, un amphicyonido, dos especies de mustélidos (una nutria y un melivorino, dos diferentes tipos de vivérridos (uno de la talla de una civeta y el otro de la de una jineta y un herpéstido diminuto de la talla de una mangosta enana. También hay fósiles de un percrocútido de talla moderada. Tal vez el carnívoro más interesante es un nuevo género y especie de vivérrido bunodonto que presenta una talla y morfología intermedia entre Oragictis del Mioceno inferior y Pseudocivetta del Plio-Pleistoceno. Esta línea de vivérridos bunodontos parece estar restringida a Africa.

  9. Scaling roads and wildlife: The Cinderella principle

    Science.gov (United States)

    Bissonette, J.A.

    2002-01-01

    It is clear that a reduction in both direct and indirect effects of roads and road networks must be the goal of management agencies. However, increased permeability of roaded landscapes can only be achieved by up-front planning and subsequent mitigative actions. The key is to understand that roads must be made permeable to the movement of animals. More profoundly, ecosystem services, i.e., clean water, clean air, uncontaminated soil, natural landscapes, recreation opportunities, abundant wildlife, and life sustaining ecological processes must not be seriously impacted. In other words, quality of life as measured by ecosystem services should be a major component of the planning process when roads are constructed or improved. Mitigative structures exist to increase permeability of roads. Wildlife overpasses and underpasses, often referred to as ecoducts or green bridges, with associated structures to enable larger animals to exit the road right of way, e.g., earthen escape ramps (BISSONETTE and HAMMER, 2001), various culvert designs for smaller animals including badger pipes and amphibian and reptile tunnels, and fish ladders are but a small sampling of the structures already in place around the world. What is needed is attention to the big picture. Landscapes need to be reconnected and made more permeable. Responsible agencies and organizations need to be aggressive about promoting mitigations and a conservation ethic into road planning. Only with a broad based effort between a concerned public, a database to work from, and a willingness of responsible agencies, will the now very large virtual footprint of roads and road networks be reduced to more closely approximate the physical footprint. By embracing the Cinderella Principle of making the virtual shoe fit more closely the actual physical footprint of roads, we will be able to achieve a closer connection with ecological harmony with its resultant effect of abundant wildlife.

  10. The Automatically Triggered Video or Imaging Station (ATVIS): An Inexpensive Way to Catch Geomorphic Events on Camera

    Science.gov (United States)

    Wickert, A. D.

    2010-12-01

    To understand how single events can affect landscape change, we must catch the landscape in the act. Direct observations are rare and often dangerous. While video is a good alternative, commercially-available video systems for field installation cost 11,000, weigh ~100 pounds (45 kg), and shoot 640x480 pixel video at 4 frames per second. This is the same resolution as a cheap point-and-shoot camera, with a frame rate that is nearly an order of magnitude worse. To overcome these limitations of resolution, cost, and portability, I designed and built a new observation station. This system, called ATVIS (Automatically Triggered Video or Imaging Station), costs 450--500 and weighs about 15 pounds. It can take roughly 3 hours of 1280x720 pixel video, 6.5 hours of 640x480 video, or 98,000 1600x1200 pixel photos (one photo every 7 seconds for 8 days). The design calls for a simple Canon point-and-shoot camera fitted with custom firmware that allows 5V pulses through its USB cable to trigger it to take a picture or to initiate or stop video recording. These pulses are provided by a programmable microcontroller that can take input from either sensors or a data logger. The design is easily modifiable to a variety of camera and sensor types, and can also be used for continuous time-lapse imagery. We currently have prototypes set up at a gully near West Bijou Creek on the Colorado high plains and at tributaries to Marble Canyon in northern Arizona. Hopefully, a relatively inexpensive and portable system such as this will allow geomorphologists to supplement sensor networks with photo or video monitoring and allow them to see—and better quantify—the fantastic array of processes that modify landscapes as they unfold. Camera station set up at Badger Canyon, Arizona.Inset: view into box. Clockwise from bottom right: camera, microcontroller (blue), DC converter (red), solar charge controller, 12V battery. Materials and installation assistance courtesy of Ron Griffiths and the

  11. 3c/4e [small sigma, Greek, circumflex]-type long-bonding competes with ω-bonding in noble-gas hydrides HNgY (Ng = He, Ne, Ar, Kr, Xe, Rn; Y = F, Cl, Br, I): a NBO/NRT perspective.

    Science.gov (United States)

    Zhang, Guiqiu; Li, Hong; Weinhold, Frank; Chen, Dezhan

    2016-03-21

    Noble-gas hydrides HNgY are frequently described as a single ionic form (H-Ng)(+)Y(-). We apply natural bond orbital (NBO) and natural resonance theory (NRT) analyses to a series of noble-gas hydrides HNgY (Ng = He, Ne, Ar, Kr, Xe, Rn; Y = F, Cl, Br, I) to gain quantitative insight into the resonance bonding of these hypervalent molecules. We find that each of the studied species should be better represented as a resonance hybrid of three leading resonance structures, namely, H-Ng(+ -):Y (I), H:(- +)Ng-Y (II), and H^Y (III), in which the "ω-bonded" structures I and II arise from the complementary donor-acceptor interactions nY → σ*HNg and nH → σ*NgY, while the "long-bond" ([small sigma, Greek, circumflex]-type) structure III arises from the nNg → [small sigma, Greek, circumflex]*HY/[small sigma, Greek, circumflex]HY interaction. The bonding for all of the studied molecules can be well described in terms of the continuously variable resonance weightings of 3c/4e ω-bonding and [small sigma, Greek, circumflex]-type long-bonding motifs. Furthermore, we find that the calculated bond orders satisfy a generalized form of "conservation of bond order" that incorporates both ω-bonding and long-bonding contributions [viz., (bHNg + bNgY) + bHY = bω-bonding + blong-bonding = 1]. Such "conservation" throughout the title series implies a competitive relationship between ω-bonding and [small sigma, Greek, circumflex]-type long-bonding, whose variations are found to depend in a chemically reasonable manner on the electronegativity of Y and the outer valence-shell character of the central Ng atom. The calculated bond orders are also found to exhibit chemically reasonable correlations with bond lengths, vibrational frequencies, and bond dissociation energies, in accord with Badger's rule and related empirical relationships. Overall, the results provide electronic principles and chemical insight that may prove useful in the rational design of noble-gas hydrides of

  12. On the origin of donor O–H bond weakening in phenol-water complexes

    Energy Technology Data Exchange (ETDEWEB)

    Banerjee, Pujarini; Mukhopadhyay, Deb Pratim; Chakraborty, Tapas, E-mail: pctc@iacs.res.in [Department of Physical Chemistry, Indian Association for the Cultivation of Science, Kolkata 700032 (India)

    2015-11-28

    Matrix isolation infrared spectroscopy has been used to investigate intermolecular interactions in a series of binary O–H⋯O hydrogen bonded phenol-water complexes where water is the common acceptor. The interaction at the binding site has been tuned by incorporating multiple fluorine substitutions at different aromatic ring sites of the phenol moiety. The spectral effects for the aforesaid chemical changes are manifested in the infrared spectra of the complexes as systematic increase in spectral shift of the phenolic O–H stretching fundamental (Δν{sub O–H}). While ν{sub O–H} bands of the monomers of all the fluorophenols appear within a very narrow frequency range, the increase in Δν{sub O–H} of the complexes from phenol to pentafluorophenol is very large, nearly 90%. The observed values of Δν{sub O–H} do not show a linear correlation with the total binding energies (ΔE{sub b}) of the complexes, expected according to Badger-Bauer rule. However, in the same Δν{sub O–H} vs ΔE{sub b} plot, nice linear correlations are revealed if the complexes of ortho-fluorophenols are treated separately from their meta/para-substituted analogues. The observations imply that in spite of having the same binding site (O–H⋯O) and the same chemical identities (phenolic), the complexes of ortho and non-ortho fluorophenols do not belong, from the viewpoint of detailed molecular interactions, to a homologous series. Linear correlations of Δν{sub O–H} are, however, observed with respect to the electrostatic component of ΔE{sub b} as well as the quantum mechanical charge transfer interaction energy (E{sub CT}). From quantitative viewpoint, the latter correlation along with the associated electronic structure parameters appears more satisfactory. It has also been noted that the observed Δν{sub O–H} values of the complexes display a linear relationship with the aqueous phase pK{sub a} values of the respective phenol derivatives.

  13. Proposal of the visual inspection of the integrity of the storage cells of spent fuel from the nuclear power plant of Laguna Verde; Propuesta para la inspeccion visual de la integridad de las celdas de almacenamiento de combustible gastado de la Central Laguna Verde (CLV)

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez M, J. L.; Rivero G, T.; Merino C, F. J. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Santander C, L. E., E-mail: francisco.merino@inin.gob.mx [Comision Federal de Electricidad, Central Nucleoelectrica Laguna Verde, Carretera Veracruz-Medellin Km 7.5, Col. Dos Bocas, 94271 Medellin, Veracruz (Mexico)

    2015-09-15

    plates of Boral has not lost its ability to absorb neutrons, using proven methods like Badger or similar. (Author)

  14. Farm characteristics and farmer perceptions associated with bovine tuberculosis incidents in areas of emerging endemic spread.

    Science.gov (United States)

    Broughan, J M; Maye, D; Carmody, P; Brunton, L A; Ashton, A; Wint, W; Alexander, N; Naylor, R; Ward, K; Goodchild, A V; Hinchliffe, S; Eglin, R D; Upton, P; Nicholson, R; Enticott, G

    2016-07-01

    that had recently experienced a bTB incident were more likely to have implemented badger biosecurity in the previous year, but no more likely than control farms to have implemented cattle biosecurity. Case farmers felt significantly less likely to be influenced by government, vets or other farmers compared to those with no history of bTB. This suggests that alternative methods of engaging with farmers who have recently had a breakdown may need to be developed.

  15. Vascular Plant and Vertebrate Inventory of Casa Grande Ruins National Monument

    Science.gov (United States)

    Powell, Brian F.; Albrecht, Eric W.; Schmidt, Cecilia A.; Halvorson, William L.; Anning, Pamela; Docherty, Kathleen

    2006-01-01

    urbanization continues. Despite isolation of the monument from nearby natural areas, we recorded noteworthy species or observations for all taxonomic groups: * Plants: night-blooming cereus * Amphibians: high abundance of Couch's spadefoot toads * Reptiles: high abundance of long-nosed snakes * Birds: 10 species of diurnal raptors including 4 species of falcons * Mammals: American badger This study is a first step in the process of compiling information about the biological resources of Casa Grande Ruins NM and surrounding areas. We recommend additional inventory and research studies, and we identify aspects of our effort that could be improved upon through application of new techniques or by extending the temporal (and possibly spatial) scope of our work.

  16. Wildlife Interactions on Baited Places and Waterholes in a French Area Infected by Bovine Tuberculosis

    Science.gov (United States)

    Payne, Ariane; Philipon, Sixtine; Hars, Jean; Dufour, Barbara; Gilot-Fromont, Emmanuelle

    2017-01-01

    Interactions among wildlife species are major drivers for the transmission of multi-host pathogens, such as Mycobacterium bovis, which also affect livestock. Although France is officially free from bovine tuberculosis (bTB), some areas are still harboring infection in cattle and wildlife. We aimed at characterizing the visits of susceptible wild species (badger, red deer, and wild boar) at baited places and waterholes, considered as possible hotspots for contacts. We described the visits in terms of frequency, duration, and number of individuals and studied the influence of the season. Then, we estimated the frequency of intraspecies and interspecies interactions occurring at baited places and waterholes which may lead to bTB transmission, including direct and indirect contacts through the soil or water. We used camera traps placed on baited places and waterholes on 13 locations monitored during 21 months. The number of visits, their duration, and the number of individuals per visit were analyzed by generalized linear mixed models for each targeted species. The frequency of the interspecies and intraspecies interactions was also analyzed separately. The season, the type of site (baited place or waterhole), and the location were the explanatory variables. Badgers’ visits and interactions were more frequent than for other species (mean: 0.60 visit/day and 5.42 interactions/day) especially on baited places. Red deer only visited waterholes. Wild boars visited most often baited places in spring–summer and waterholes in autumn–winter. They came in higher number than other species, especially on baited places. Direct interactions were uncommon. The most frequent interspecies interactions occurred between red deer and wild boar (mean: 4.02 interactions/day). Baited places and waterholes are important interfaces between the different wild species involved in the bTB multi-host system in this area. They can thus promote intraspecies and interspecies b

  17. Progress in the control of bovine tuberculosis in Spanish wildlife.

    Science.gov (United States)

    Gortazar, Christian; Vicente, Joaquín; Boadella, Mariana; Ballesteros, Cristina; Galindo, Ruth C; Garrido, Joseba; Aranaz, Alicia; de la Fuente, José

    2011-07-01

    Despite the compulsory test and slaughter campaigns in cattle, bovine tuberculosis (bTB) is still present in Spain, and the role of wildlife reservoirs is increasingly recognized. We provide an update on recent progress made in bTB control in Spanish wildlife, including aspects of epidemiology, surveillance, host-pathogen interaction and wildlife vaccination. At the high densities and in the particular circumstances of Mediterranean environments, wild ungulates, mainly Eurasian wild boar and red deer, are able to maintain Mycobacterium bovis circulation even in absence of domestic livestock. Infection is widespread among wild ungulates in the south of the country, local infection prevalence being as high as 52% in wild boar and 27% in red deer. Risk factors identified include host genetic susceptibility, abundance, spatial aggregation at feeders and waterholes, scavenging, and social behaviour. An increasing trend of bTB compatible lesions was reported among wild boar and red deer inspected between 1992 and 2004 in Southwestern Spain. Sporadic cases of badger TB have been detected, further complicating the picture. Gene expression profiles were characterized in European wild boar and Iberian red deer naturally infected with M. bovis. The comparative analysis of gene expression profiles in wildlife hosts in response to infection advanced our understanding of the molecular mechanisms of infection and pathogenesis, revealed common and distinctive host responses to infection and identified candidate genes associated with resistance to bTB and for the characterization of host response to infection and vaccination. Ongoing research is producing valuable knowledge on vaccine delivery, safety and efficacy issues. Baits for the oral delivery of BCG vaccine preparations to wild boar piglets were developed and evaluated. The use of selective feeders during the summer was found to be a potentially reliable bait-deployment strategy. Safety experiments yielded no isolation of M

  18. Spatial-temporal patterns in Mediterranean carnivore road casualties: Consequences for mitigation

    Science.gov (United States)

    Grilo, C.; Bissonette, J.A.; Santos-Reis, M.

    2009-01-01

    Many carnivores have been seriously impacted by the expansion of transportation systems and networks; however we know little about carnivore response to the extent and magnitude of road mortality, or which age classes may be disproportionately impacted. Recent research has demonstrated that wildlife-vehicle-collisions (WVC) involving carnivores are modulated by temporal and spatial factors. Thus, we investigated road mortality on a guild of small and medium-sized carnivores in southern Portugal using road-kill data obtained from a systematic 36 months monitoring period along highways (260 km) and national roads (314 km) by addressing the following questions: (a) which species and age class are most vulnerable to WVC? (b) are there temporal and/or spatial patterns in road-kill? and (c) which life-history and/or spatial factors influence the likelihood of collisions? We recorded a total of 806 carnivore casualties, which represented an average of 47 ind./100 km/year. Red fox and stone marten had the highest mortality rates. Our findings highlight three key messages: (1) the majority of road-killed individuals were adults of common species; (2) all carnivores, except genets, were more vulnerable during specific life-history phenological periods: higher casualties were observed when red fox and stone marten were provisioning young, Eurasian badger casualties occurred more frequently during dispersal, and higher Egyptian mongoose mortality occurred during the breeding period; and (3) modeling demonstrated that favorable habitat, curves in the road, and low human disturbance were major contributors to the deadliest road segments. Red fox carcasses were more likely to be found on road sections with passages distant from urban areas. Conversely, stone marten mortalities were found more often on national roads with high of cork oak woodland cover; Egyptian mongoose and genet road-kills were found more often on road segments close to curves. Based on our results, two key

  19. Novel covalent modification of human anaplastic lymphoma kinase (ALK and potentiation of crizotinib-mediated inhibition of ALK activity by BNP7787

    Directory of Open Access Journals (Sweden)

    Parker AR

    2015-02-01

    Full Text Available Aulma R Parker,1 Pavankumar N Petluru,1 Vicki L Nienaber,2 Min Zhao,1 Philippe Y Ayala,1 John Badger,2 Barbara Chie-Leon,2 Vandana Sridhar,2 Cheyenne Logan,2 Harry Kochat,1 Frederick H Hausheer1 1BioNumerik Pharmaceuticals, Inc., San Antonio, TX, USA; 2Zenobia Therapeutics, Inc., La Jolla, CA, USA Abstract: BNP7787 (Tavocept, disodium 2,2’-dithio-bis-ethanesulfonate is a novel, investigational, water-soluble disulfide that is well-tolerated and nontoxic. In separate randomized multicenter Phase II and Phase III clinical trials in non-small-cell lung cancer (NSCLC patients, treatment with BNP7787 in combination with standard chemotherapy resulted in substantial increases in the overall survival of patients with advanced adenocarcinoma of the lung in the first-line treatment setting. We hypothesized that BNP7787 might interact with and modify human anaplastic lymphoma kinase (ALK. At least seven different variants of ALK fusions with the gene encoding the echinoderm microtubule-associated protein-like 4 (EML4 are known to occur in NSCLC. EML4–ALK fusions are thought to account for approximately 3% of NSCLC cases. Herein, we report the covalent modification of the kinase domain of human ALK by a BNP7787-derived mesna moiety and the functional consequences of this modification in ALK assays evaluating kinase activity. The kinase domain of the ALK protein crystallizes as a monomer, and BNP7787-derived mesna-cysteine adducts were observed at Cys 1235 and Cys 1156. The BNP7787-derived mesna adduct at Cys 1156 is located in close proximity to the active site and results in substantial disorder of the P-loop and activation loop (A-loop. Comparison with the P-loop of apo-ALK suggests that the BNP7787-derived mesna adduct at Cys 1156 interferes with the positioning of Phe 1127 into a small pocket now occupied by mesna, resulting in a destabilization of the loop's binding orientation. Additionally, in vitro kinase activity assays indicate that BNP7787

  20. Closed to reason: time for accountability for the International Narcotic Control Board

    Directory of Open Access Journals (Sweden)

    Small Dan

    2007-05-01

    Full Text Available Abstract For more than two decades, the International Narcotic Control Board (INCB has tried to stop harm reduction and its HIV prevention programs. This posture is based on a fundamental misunderstanding of their responsibilities and of drug addiction itself – i.e. as a public health and clinical care matter made criminal by decree. A recent focal point for the Board's action has been rejecting the use of supervised injection facilities to reduce morbidity and mortality of drug injectors. They single out individual countries and attempt to bully them into rejecting such programs under the banner of the United Nations (falsely and in the name of international treaties. Their unrelenting and unjustified badgering of signatories to the international treaties that established the INCB is not only unjustified; it is an affront to one of the core purposes of the Board itself: to ensure adequate medical supplies and safe use of controlled substances. The INCB's ill-conceived obsession with intravenousaddiction as a crime flies in the face of the medical view and policies of the World Health Organization and the universally endorsed principles of the General Assembly of the United Nations. The latest target of the INCB is North America's only supervised injection facility, Insite, located in the inner city of Vancouver, Canada. Using the power of their office to meddle in matters of public health for individual nations is without medical, scientific or legal justification. But, most importantly, it is a matter of lifeand death for these most marginalized of citizens. The empirical evidence remains that a significant portion of the continued growth of the AIDS pandemic is due to injecting drug use, and the INCB's intrusion will inevitably result in additional deaths due to preventable HIV infections and drug overdoses. So we are very pleased to call to our readers' attention to a recent report produced by the Canadian HIV/AIDS Legal Network and the

  1. Non-native fish control below Glen Canyon Dam - Report from a structured decision-making project

    Science.gov (United States)

    Runge, Michael C.; Bean, Ellen; Smith, David; Kokos, Sonja

    2011-01-01

    of objectives, with the values of individual agencies and tribes deliberately preserved. Trout removal strategies aimed at the Paria to Badger Rapid reach (PBR), with a variety of permutations in deference to cultural values, and with backup removal at the Little Colorado River reach (LCR) if necessary, were identified as top-ranking portfolios for all agencies and Tribes. These PBR/LCR removal portfolios outperformed LCR-only removal portfolios, for cultural reasons and for effectiveness - the probability of keeping the humpback chub population above a desired threshold was estimated to be higher under the PBR/LCR portfolios than the LCR-only portfolios. The PBR/LCR removal portfolios also outperformed portfolios based on flow manipulations, primarily because of the effect of sport fishery and wilderness recreation objectives, as well as cultural objectives. The preference for the PBR/LCR removal portfolios was quite robust to variation in the objective weights and to uncertainty about the underlying dynamics, at least over the ranges of uncertainty investigated. Examination of the effect of uncertainty on the recommended outcomes allowed us to complete a 'value of information' analysis. The results of this analysis led to an adaptive strategy that includes three possible long-term management actions (no action; LCR removal; or PBR removal) and seeks to reduce uncertainty about the following two issues: the degree to which rainbow trout limit chub populations, and the effectiveness of PBR removal to reduce trout emigration downstream into Marble and eastern Grand Canyons, where the largest population of humpback chub exist. In the face of uncertainty about the effectiveness of PBR removal, a case might be made for including flow manipulations in an adaptive strategy, but formal analysis of this case was not conducted. The full set of conclusions described above is not definitive, however. This analysis described in this report is a simplified depiction of the t

  2. Distribution and abundance of predators that affect duck production--prairie pothole region

    Science.gov (United States)

    Sargeant, A.B.; Greenwood, R.J.; Sovada, M.A.; Shaffer, T.L.

    1993-01-01

    predator species averaged 12.2 (SD = 1.60) per study area; common or numerous predator species averaged 6.0 (SD = 1.54) per study area (minimal because the abundance of weasels [Mustela erminea; M. frenata] in all areas and of minks [Mustela vison] and raptors in some areas was not rated). Major changes in relative abundance of individual predator species studied >1 year were few. Predator species most restricted to the aspen parkland were the Franklin's ground squirrel, black-billed magpie (Pica pica), American crow (Corvus brachyrlus), and red-tailed hawk; species most restricted to the prairie were the badger (Taxidea taxus), Swainson's hawk (Buteo swainsoni), and ferruginous hawk (B. regalis). The coyote, black-billed magpie, and American crow were most numerous in Canada, whereas the red fox, raccoon, mink, ferruginous hawk, and great horned owl were most numerous in the United States. The number of common or numerous egg-eating predator species (excludes large gulls and weasels, which were not rated) averaged 4.6 (SD = 0.90) per study area. The average numbers of common or numerous egg-eating species per study area did not differ among provinces and states, but birds gradually replaced mammals from southeast to northwest across the region. Investigators are urged to assess composition of predator populations and relative abundance of predator species for evaluations of waterfowl recruitment.

  3. PREPARATION OF MOUSE ANTI-RABIES VIRUS PHOSPHOPROTEIN MONOCLONAL ANTIBODIES AND APPLICATION%狂犬病病毒磷蛋白单抗的制备与应用

    Institute of Scientific and Technical Information of China (English)

    米立娟; 张守峰; 刘晔; 王述超; 扈荣良

    2014-01-01

    Four monoclonal antibodies against Rabies virus phosphoprotein were produced by immunization with Rabies virus strain CVS in BALB/c mice. After fusion, antibodies in the supernatant of the hybrid cells were respectively detected by ELISA test and western-blot method. Four hybrid cells secreting antibody binding to rabies virus , i.e. 1C9, 4B10, 2G12 and4G5 strains. The 1C9 monoclonal lgG antibody was purified by affinity chromatography method and then labeled with FITC. 501 brain samples collected from ferret badgers, bats, dogs and weasels were detected using the labeled 1C9 antibody and FITC-labeled rabies virus N protein-specific monoclonal antibody (made in our laboratory). The results showed that the labeled 1C9 antibody can detect rabies-related lyssaviruses isolated in China including Rabies virus and Irkut virus, however, the N protein-specific monoclonal antibody only can detect Rabies virus. It suggests that the labeled 1C9 antibody can be used as a rabies diagnostic reagent in China.%以灭活的狂犬病病毒CVS株细胞毒免疫BALB/c小鼠,通过间接ELISA法和Western-blot筛选获得针对磷蛋白的单克隆抗体4株:1C9、4B10、2G12、4G5,其中1C9针对氨基端保守表位。以亲和层析法纯化1C9单抗腹水,异硫氰酸荧光黄标记制备荧光抗体。以1C9磷蛋白荧光抗体与本实验室研制的狂犬病核蛋白免疫荧光抗原检测试剂盒,对本实验室收集的501份疑似狂犬病鼬獾、蝙蝠、犬和黄鼬的脑组织样品进行直接免疫荧光平行检测。结果显示,两种检测手段对基因1型狂犬病毒的检出结果完全一致,而蝙蝠源Irkut病毒仅能以磷蛋白单抗1C9检出。本研究成功获得了与我国现有不同基因型狂犬病毒良好反应的抗狂犬病磷蛋白单抗,并应用于狂犬病的直接免疫荧光检测,为狂犬病诊断提供了敏感性和可靠性良好的诊断试剂。

  4. Surveys of mammal populations in the areas adjacent to Forsmark and Tierp. A pilot study 2001-2002

    Energy Technology Data Exchange (ETDEWEB)

    Cederlund, Goeran; Hammarstroem, Angelica; Wallin, Kjell [Svensk Viltfoervaltning AB, Ramsberg (Sweden)

    2003-04-01

    larger ditches. The methods have been evaluated and should all be used next year with minor changes. Some of the basic data presented in the report are as follows: Moose were unevenly distributed in a 480/km{sup 2} area along the coast (mean density 7.2 moose/10 km{sup 2} ). No red deer was fund while roe deer density varied between 13 deer/10 km{sup 2} (Tierp) and 59 deer/10 km{sup 2} (Forsmark). Hare density in the fields were between 2.5 hares/10 km{sup 2} (Control area) and 3.4 hares/10 km{sup 2} (Tierp) while in the forest density varied between 0.2 hares/10 km{sup 2} (Tierp) and 4.4 hares/10 km{sup 2} (Forsmark) Red listed species like wolf and otter are present in the areas, although in low numbers. No wolf tracks were found, but a few individuals were observed elsewhere in the region during the winter. As indicated by track indexes, red fox and marten are common predators in all three areas. Lynx is present, but at low numbers (0.2 lynx/10 km{sup 2} ). Occasional tracks of wild boar were found in the transects. Based on the results from this pilot study, we suggest some modification of the methods and additional methods for density estimates (for example using capture-recapture techniques of fox and badger)

  5. [WILD MAMMALS OF THE GRAND DUCHY OF LITHUANIA IN THE WORKS OF JEAN-EMMANUEL GILIBERT].

    Science.gov (United States)

    Samojlik, Tomasz; Daszkiewicz, Piotr

    2015-01-01

    Among the many topics of lively scientific work that Jean Emmanuel Gilibert (1741-1814) conducted in Grodno and Vilnius, an important place is occupied by his observations of wild mammals. Royal patronage and care from Antoni Tyzenhauz, Treasurer of the Grand Duchy of Lithuania and the governor of Grodno, allowed Gilibert to keep and observe wild fauna captured by royal services in royal forests, including Białowieża Primeval Forest. Such was an origin of a female bison kept by Gilibert in Grodno. Its description, published in Indagatores naturae in Lithuania (Vilnius 1781) for decades became the primary source of information about the behaviour, food preferences and the anatomy of European bison. European science has just begun to take interest in European bison, therefore Gilibert's account entered scientific circulation by way of French natural history encyclopaedias (mainly Georges Buffon's Histoire naturelle) and works by Georges Cuvier or Étienne Geoffroy Saint-Hilaire. Apart from the description of European bison, Gilibert left an entire series of observations of wild mammals inhabiting the forests of the Grand Duchy of Lithuania. His accounts of moose were important in building a knowledge base for this species. In the first half of the 18th century, moose was known mainly from fantastic descriptions in Renaissance works and from prescriptions devoted to using moose hoof as the epilepsy treatment. Gilibert's observations helped to overthrow such superstitions. Similarly, Gilibert's first-hand information verified the widespread legends concerning brown bear (e.g. the belief that white bears, belonging to other species than polar bears, occur in Lithuania) . List of species kept and thoroughly watched by the scholar is much longer and includes lynx, wolf (and hybrids of wolves and dogs), beaver, badger, fox, hedgehog, and even white mouse. Also his comments on the species of mammals then absent in Lithuania but known either from farming or from the fur