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Sample records for canis reveals themes

  1. [Suicide -- an essay trying to reveal the theme].

    Science.gov (United States)

    Sampaio, M A; Boemer, M R

    2000-12-01

    This essay proposes to reveal facets of the suicide through the discourse of different authors treating this theme as well as through contacts that I was able to have in my nursing training, through my academic trajectory. This trajectory includes an incursion by phenomenological ideas, mainly by the ideas of Heidegger and his existential analysis of the man as being-there. In this way, the understanding of a person who decides to finalize his/her existence, can be, by the existential analysis perspective, a way to reconstruct and redimension his/her existential perspectives.

  2. Star formation history of Canis Major OB1. II. A bimodal X-ray population revealed by XMM-Newton

    Science.gov (United States)

    Santos-Silva, T.; Gregorio-Hetem, J.; Montmerle, T.; Fernandes, B.; Stelzer, B.

    2018-02-01

    Aims: The Canis Major OB1 Association has an intriguing scenario of star formation, especially in the region called Canis Major R1 (CMa R1) traditionally assigned to a reflection nebula, but in reality an ionized region. This work is focussed on the young stellar population associated with CMa R1, for which our previous results from ROSAT, optical, and near-infrared data had revealed two stellar groups with different ages, suggesting a possible mixing of populations originated from distinct star formation episodes. Methods: The X-ray data allow the detected sources to be characterized according to hardness ratios, light curves, and spectra. Estimates of mass and age were obtained from the 2MASS catalogue and used to define a complete subsample of stellar counterparts for statistical purposes. Results: A catalogue of 387 XMM-Newton sources is provided, of which 78% are confirmed as members or probable members of the CMa R1 association. Flares (or similar events) were observed for 13 sources and the spectra of 21 bright sources could be fitted by a thermal plasma model. Mean values of fits parameters were used to estimate X-ray luminosities. We found a minimum value of log(LX [erg/s] ) = 29.43, indicating that our sample of low-mass stars (M⋆ ≤ 0.5 M⊙), which are faint X-ray emitters, is incomplete. Among the 250 objects selected as our complete subsample (defining our "best sample"), 171 are found to the east of the cloud, near Z CMa and dense molecular gas, of which 50% of them are young (10 Myr). The opposite happens to the west, near GU CMa, in areas lacking molecular gas: among 79 objects, 30% are young and 50% are older. These findings confirm that a first episode of distributed star formation occurred in the whole studied region 10 Myr ago and dispersed the molecular gas, while a second, localized episode (<5 Myr) took place in the regions where molecular gas is still present.

  3. Pauses in Striatal Cholinergic Interneurons: What is Revealed by Their Common Themes and Variations?

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    Yan-Feng Zhang

    2017-10-01

    Full Text Available Striatal cholinergic interneurons, the so-called tonically active neurons (TANs, pause their firing in response to sensory cues and rewards during classical conditioning and instrumental tasks. The respective pause responses observed can demonstrate many commonalities, such as constant latency and duration, synchronous occurrence in a population of cells, and coincidence with phasic activities of midbrain dopamine neurons (DANs that signal reward predictions and errors. Pauses can however also show divergent properties. Pause latencies and durations can differ in a given TAN between appetitive vs. aversive outcomes in classical conditioning, initial excitation can be present or absent, and a second pause can variably follow a rebound. Despite more than 20 years of study, the functions of these pause responses are still elusive. Our understanding of pause function is hindered by an incomplete understanding of how pauses are generated. In this mini-review article, we compare pause types, as well as current key hypotheses for inputs underlying pauses that include dopamine-induced inhibition through D2-receptors, a GABA input from ventral tegmental area, and a prolonged afterhyperpolarization induced by excitatory input from the cortex or from the thalamus. We review how each of these mechanisms alone explains some but not all aspects of pause responses. These mechanisms might need to operate in specific but variable sets of sequences to generate a full range of pause responses. Alternatively, these mechanisms might operate in conjunction with an underlying control mechanism within cholinergic interneurons which could potentially provide a framework to generate the common themes and variations seen amongst pause responses.

  4. Theming Asia

    NARCIS (Netherlands)

    Erb, Maribeth; Ong, Chin Ee

    2017-01-01

    This paper introduces a special issue on Theme Parks in Asia with reflections on how the various theoretical ideas on theming and theme parks that are found in the social science literature can help us to understand the proliferation of theming and theme parks in contemporary Asia. How does theming

  5. Age-Related Changes in Locomotor Performance Reveal a Similar Pattern for Caenorhabditis elegans, Mus domesticus, Canis familiaris, Equus caballus, and Homo sapiens.

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    Marck, Adrien; Berthelot, Geoffroy; Foulonneau, Vincent; Marc, Andy; Antero-Jacquemin, Juliana; Noirez, Philippe; Bronikowski, Anne M; Morgan, Theodore J; Garland, Theodore; Carter, Patrick A; Hersen, Pascal; Di Meglio, Jean-Marc; Toussaint, Jean-François

    2017-04-01

    Locomotion is one of the major physiological functions for most animals. Previous studies have described aging mechanisms linked to locomotor performance among different species. However, the precise dynamics of these age-related changes, and their interactions with development and senescence, are largely unknown. Here, we use the same conceptual framework to describe locomotor performances in Caenorhabditis elegans, Mus domesticus, Canis familiaris, Equus caballus, and Homo sapiens. We show that locomotion is a consistent biomarker of age-related changes, with an asymmetrical pattern throughout life, regardless of the type of effort or its duration. However, there is variation (i) among species for the same mode of locomotion, (ii) within species for different modes of locomotion, and (iii) among individuals of the same species for the same mode of locomotion. Age-related patterns are modulated by genetic (such as selective breeding) as well as environmental conditions (such as temperature). However, in all cases, the intersection of the rising developmental phase and the declining senescent phase reveals neither a sharp transition nor a plateau, but a smooth transition, emphasizing a crucial moment: the age at peak performance. This transition may define a specific target for future investigations on the dynamics of such biological interactions. © The Author 2016. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  6. Oligotyping reveals differences between gut-microbiomes of free-ranging sympatric Namibian carnivores (Acinonyx jubatus, Canis mesomelas on a bacterial species-like level

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    Sebastian eMenke

    2014-10-01

    Full Text Available Recent gut microbiome studies in model organisms emphasize the effects of intrinsic and extrinsic factors on the variation of the bacterial composition and its impact on the overall health status of the host. Species occurring in the same habitat might share a similar microbiome, especially if they overlap in ecological and behavioral traits. So far, the natural variation in microbiomes of free-ranging wildlife species has not been thoroughly investigated. The few existing studies exploring microbiomes through 16S rRNA gene reads clustered sequencing reads into operational taxonomic units (OTUs based on a similarity threshold (e.g. 97%. This approach, in combination with the low resolution of target databases, generally limits the level of taxonomic assignments to the genus level. However, distinguishing natural variation of microbiomes in healthy individuals from abnormal microbial compositions that affect host health requires knowledge of the normal microbial flora at a high taxonomic resolution. This gap can now be addressed using the recently published oligotyping approach, which can resolve closely related organisms into distinct oligotypes by utilizing subtle nucleotide variation. Here, we used Illumina MiSeq to sequence amplicons generated from the V4 region of the 16S rRNA gene to investigate the gut microbiome of two free-ranging sympatric Namibian carnivore species, the cheetah (Acinonyx jubatus and the black-backed jackal (Canis mesomelas. Bacterial phyla with proportions > 0.2 % were identical for both species and included Firmicutes, Fusobacteria, Bacteroidetes, Proteobacteria and Actinobacteria. At a finer taxonomic resolution, black-backed jackals exhibited 69 bacterial taxa with proportions ≥ 0.1 %, whereas cheetahs had only 42. Finally, oligotyping revealed that shared bacterial taxa consisted of distinct oligotype profiles. Thus, in contrast to 3 % OTUs, oligotyping can detect fine-scale taxonomic differences between

  7. Oligotyping reveals differences between gut microbiomes of free-ranging sympatric Namibian carnivores (Acinonyx jubatus, Canis mesomelas) on a bacterial species-like level.

    Science.gov (United States)

    Menke, Sebastian; Wasimuddin; Meier, Matthias; Melzheimer, Jörg; Mfune, John K E; Heinrich, Sonja; Thalwitzer, Susanne; Wachter, Bettina; Sommer, Simone

    2014-01-01

    Recent gut microbiome studies in model organisms emphasize the effects of intrinsic and extrinsic factors on the variation of the bacterial composition and its impact on the overall health status of the host. Species occurring in the same habitat might share a similar microbiome, especially if they overlap in ecological and behavioral traits. So far, the natural variation in microbiomes of free-ranging wildlife species has not been thoroughly investigated. The few existing studies exploring microbiomes through 16S rRNA gene reads clustered sequencing reads into operational taxonomic units (OTUs) based on a similarity threshold (e.g., 97%). This approach, in combination with the low resolution of target databases, generally limits the level of taxonomic assignments to the genus level. However, distinguishing natural variation of microbiomes in healthy individuals from "abnormal" microbial compositions that affect host health requires knowledge of the "normal" microbial flora at a high taxonomic resolution. This gap can now be addressed using the recently published oligotyping approach, which can resolve closely related organisms into distinct oligotypes by utilizing subtle nucleotide variation. Here, we used Illumina MiSeq to sequence amplicons generated from the V4 region of the 16S rRNA gene to investigate the gut microbiome of two free-ranging sympatric Namibian carnivore species, the cheetah (Acinonyx jubatus) and the black-backed jackal (Canis mesomelas). Bacterial phyla with proportions >0.2% were identical for both species and included Firmicutes, Fusobacteria, Bacteroidetes, Proteobacteria and Actinobacteria. At a finer taxonomic resolution, black-backed jackals exhibited 69 bacterial taxa with proportions ≥0.1%, whereas cheetahs had only 42. Finally, oligotyping revealed that shared bacterial taxa consisted of distinct oligotype profiles. Thus, in contrast to 3% OTUs, oligotyping can detect fine-scale taxonomic differences between microbiomes.

  8. Oligotyping reveals differences between gut microbiomes of free-ranging sympatric Namibian carnivores (Acinonyx jubatus, Canis mesomelas) on a bacterial species-like level

    Czech Academy of Sciences Publication Activity Database

    Menke, S.; Wasimuddin, Wasimuddin; Meier, M.; Melzheimer, J.; Mfune, J. K. E.; Heinrich, S.; Thalwitzer, S.; Wachter, B.; Sommer, S.

    2014-01-01

    Roč. 5, č. 526 (2014), s. 526 ISSN 1664-302X R&D Projects: GA MŠk EE2.3.20.0303 Institutional support: RVO:68081766 Keywords : gut microbiome * bacteria * oligotyping * carnivores * cheetah (Acinonyx jubatus) * black-backed jackal (Canis mesomelas) * Namibia Subject RIV: EG - Zoology Impact factor: 3.989, year: 2014

  9. Mixed Ehrlichia canis, Hepatozoon canis, and presumptive Anaplasma phagocytophilum infection in a dog.

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    Mylonakis, Mathio E; Koutinas, Alex F; Baneth, Gad; Polizopoulou, Zoe; Fytianou, Anna

    2004-01-01

    A 5-month-old, female, mongrel dog was admitted to the Clinic of Companion Animal Medicine, Aristotle University of Thessaloniki, Greece, with depression, anorexia, fever, peripheral lymphadenopathy, splenomegaly, oculonasal discharge, nonregenerative anemia, and mild thrombocytopenia. Cytology of Giemsa-stained buffy coat, bone marrow, and lymph node aspiration smears revealed numerous morulae in mononuclear leukocytes and in neutrophils, and Hepatozoon canis gamonts in neutrophils. The dog was seropositive to Ehrlichia canis (immunofluorescence assay [IFA]) and Hepatozoon canis (ELISA) but not to Anaplasma phagocytophilum (IFA). A nested polymerase chain reaction performed on bone marrow aspirates was positive for E canis. This method was not applied for the detection of A phagocytophilum. Treatment with doxycycline and imidocarb dipropionate resulted in both clinical and parasitologic cure. This is the first reported case of a mixed infection with E canis, H canis, and presumptive A phagocytophilum. The findings emphasize the value of cytology in offering a quick and inexpensive diagnosis in mixed tick-borne infections of dogs.

  10. Demodex canis: redescription and reevaluation.

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    Nutting, W B; Desch, C E

    1978-04-01

    A brief review of the taxonomy of Demodex canis is followed by a complete redescription. Demodex canis is diagnosed with D. odocoilei of the white-tailed deer. In view of the continued speculation that dogs and man share the same demodicid, simple morphological characters are noted which distinguish D. canis from D. folliculorum and D. brevis in all stages of their life cycles.

  11. Demodicosis caused by Demodex canis and Demodex cornei in dogs

    OpenAIRE

    Sivajothi, S.; Sudhakara Reddy, B.; Rayulu, V. C.

    2013-01-01

    Two mongrel dogs aged between 7 and 9 months in a same house were presented to the clinics with a history of chronic dermatitis associated with pruritus. Clinical examination revealed presence of primary and secondary skin lesions on the face, around the ears, chin, neck, fore limbs and lateral abdomen. Examination of skin scrapings revealed Demodex cornei (majority) and D. canis (minority) in both the dogs. By using hair pluck examination D. canis were detected and by tape impression smears ...

  12. Genetic and Antigenic Evidence Supports the Separation of Hepatozoon canis and Hepatozoon americanum at the Species Level

    OpenAIRE

    Baneth, Gad; Barta, John R.; Shkap, Varda; Martin, Donald S.; Macintire, Douglass K.; Vincent-Johnson, Nancy

    2000-01-01

    Recognition of Hepatozoon canis and Hepatozoon americanum as distinct species was supported by the results of Western immunoblotting of canine anti-H. canis and anti-H. americanum sera against H. canis gamonts. Sequence analysis of 368 bases near the 3′ end of the 18S rRNA gene from each species revealed a pairwise difference of 13.59%.

  13. Molecular characterization of Hepatozoon canis from farm dogs in Pakistan.

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    Ahmad, Abdullah S; Saeed, Muhammad A; Rashid, Imran; Ashraf, Kamran; Shehzad, Wasim; Traub, Rebecca J; Baneth, Gad; Jabbar, Abdul

    2018-04-01

    Hepatozoon canis is a tick-borne pathogen of canids, which is distributed worldwide. However, very little is known about this protozoan parasite in Pakistan. This study provides the first molecular evidence of H. canis from farm dogs from three agro-ecological zones of Punjab, Pakistan. A conventional PCR targeting the 18S rRNA gene was used to characterize H. canis from farm dogs from three districts, namely Kasur, Rawalpindi, and Muzaffargarh, in Punjab. Of 341 blood samples tested, 155 (45.5%) were positive for H. canis, 73 (61.3%) from Kasur, 46 (42.5%) from Rawalpindi, and 36 (31.5%) from Muzaffargarh. Phylogenetic analyses revealed that 18S rRNA sequences of H. canis from this study clustered in three clades with those of H. canis from previously published studies to the exclusion of all other Hepatozoon spp. included in the analysis. This study provides the first insight into H. canis from farm dogs in Pakistan. Furthermore, it lays a foundation for future studies of the parasite to assess the impact of canine hepatozoonosis in dogs from various agro-ecological zones in Pakistan where pet ownership of dogs is increasing.

  14. First molecular identification of Echinococcus vogeli and Echinococcus granulosus (sensu stricto) G1 revealed in feces of domestic dogs (Canis familiaris) from Acre, Brazil.

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    das Neves, Leandro Batista; Teixeira, Paulo Eduardo Ferlini; Silva, Sidnei; de Oliveira, Fernanda Bittencourt; Garcia, Daniel Daipert; de Almeida, Fernanda Barbosa; Rodrigues-Silva, Rosângela; Machado-Silva, José Roberto

    2017-01-14

    Echinococcus granulosus (sensu lato) (s.l.) and Echinococcus vogeli are causative agents of chronic zoonotic diseases such as cystic and polycystic echinococcosis, respectively. In Brazil, polycystic echinococcosis has a restricted geographical distribution in the North Region, while cystic echinococcosis is observed in the South Region. Domestic dogs (Canis familiaris) fed with raw viscera represent a risk factor for E. granulosus (s.l.) infection in the South Region. Although this practice is frequent, it remains unclear whether domestic dogs are infected with E. vogeli in the state of Acre, located in the Amazon basin in the North Region of Brazil. The aim of this study was to investigate this gap in the polycystic echinococcosis epidemiology. Sixty-five fecal samples were collected from the ground in five municipalities (Sena Madureira, n = 14; Rio Branco, n = 06; Bujari, n = 06; Xapuri, n = 30; and Epitaciolândia, n = 09) located in the state of Acre, northern Brazil. The samples were screened for parasites by copro-PCR using the cox1 gene associated with automated sequencing. Echinococcus vogeli was molecularly confirmed in a sample from Sena Madureira and E. granulosus (sensu stricto) (s.s.) (G1) in a sample from Rio Branco. These findings indicate that molecular assays are useful in typing Echinococcus taxa from fecal samples of dogs in northern Brazil. The present study is the first molecular record of E. vogeli in domestic dogs found in the state of Acre, reinforcing their role as a source of infection for humans. Because E. granulosus (s.s.) (G1) was detected for the first time in the North Region, from the epidemiological standpoint this finding is highly relevant, because it expands the known geographical distribution, which was previously restricted to the South Region of Brazil.

  15. Suicídio: um ensaio em busca de um des-velamento do tema Suicide: one essay in a search of a revealment of the theme

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    Mauren Alexandra Sampaio

    2000-12-01

    Full Text Available Este ensaio propõe-se a des-velar facetas do tema suicídio por meio do discurso de diferentes autores que tratam do tema, bem como mediante os contatos que pude ter, durante os estágios de aprendizado, coin pessoas que tentaram suicídio. Minha trajetória acadêmica inclui uma incursão pelas idéias da fenomnenologia, particularmente pelos pensamentos de Heidegger, ou seja, análise existencial do homem enquanto ser-aí. Nesse sentido, a compreensão da pessoa que decide colocar fim à sua existência, pode se constituir, na perspectiva desta análise, como um caminho para reconstrução e redimensionamento de suas perspectivas existenciais.This essay proposes to reveal facets of the suicide through the discourse of differents authors treating this theme as well as through contacts that I was able to have in my nursing training, through my academic trajectory. This trajectory includes an incursion by phenomenological ideas, mainly by the ideas of Heidegger and his existencial analysis of the man as being-there. In this way, the understanding of a person who decides to finalize his/her existence, can be, by the existencial analysis perspective, a way to reconstruct and redimension his/her existencial perspectives.

  16. Molecular detection of Ehrlichia canis, Hepatozoon canis and Babesia canis vogeli in stray dogs in Mahasarakham province, Thailand.

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    Piratae, Supawadee; Pimpjong, Kiattisak; Vaisusuk, Kotchaphon; Chatan, Wasupon

    2015-01-01

    Canine tick borne diseases showing distribution worldwide have caused morbidity and mortality in dogs. This study observed the mainly tick borne pathogens described for dogs in Thailand, Ehrlichia canis, Hepatozoon canis and Babesia canis vogeli. From May to July 2014, blood samples were collected from 79 stray dogs from 7 districts of Mahasarakham province to molecular surveyed for 16s rRNA gene of E. canis and 18s rRNA gene of H. canis and B. canis vogeli. Twenty eight (35.44%) of stray dogs showed the infection with tick borne pathogens. The prevalence of E. canis infection was the highest with 21.5% (17/79). DNA of H. canis and B. canis vogeli were detected at the prevalence of 10.1% (8/79) and 6.3% (5/79), respectively. Co-infection between E. canis and B. canis vogeli were identified in 2 (2.5%) dogs. The results indicated that a wide range of tick borne pathogens are circulation in the canine population in Mahasarakham province. This study is the first report on prevalence of E. canis, H. canis and B. canis vogeli in stray dogs in Mahasarakham, a province in northern part of Thailand. This data providing is important to understand the prevalence of E. canis, H. canis and B. canis vogeli infection in stray dogs in this region, which will assist in the management of these blood parasite.

  17. Molecular detection of Hepatozoon canis and Babesia canis vogeli in domestic dogs from Cuiabá, Brazil.

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    Spolidorio, Mariana Granziera; Torres, Mariana de Medeiros; Campos, Wilma Neres da Silva; Melo, Andréia Lima Tomé; Igarashi, Michelle; Amude, Alexandre Mendes; Labruna, Marcelo Bahia; Aguiar, Daniel Moura

    2011-01-01

    The objective of this study was to report for the first time infection by Hepatozoon spp. and Babesia spp. in 10 dogs from the city of Cuiabá, State of Mato Grosso, central-western Brazil. A pair of primers that amplifies a 574 bp fragment of the 18S rRNA of Hepatozoon spp., and a pair of primers that amplifies a 551 bp fragment of the gene 18S rRNA for Babesia spp. were used. Six dogs were positive for Babesia spp., and 9 were positive for Hepatozoon spp. Co‑infection of Babesia spp. and Hepatozoon spp. was seen in 5 dogs. Sequenced samples revealed 100% identity with B. canis vogeli, and H. canis. This is the first molecular detection of H. canis in domestic dogs from Cuiabá. Additionally, it is described for the first time the presence of B. canis vogeli circulating among dogs in Cuiabá.

  18. Different Babesia canis isolates, different diseases.

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    Schetters, T P; Moubri, K; Précigout, E; Kleuskens, J; Scholtes, N C; Gorenflot, A

    1997-11-01

    Using surface immunofluorescence isolate-specific antigens were detected on the membrane of erythrocytes infected with Babesia parasites. In addition, the strains reacted differently with Plasmagel in that the European isolate (B.c. canis) could be purified on Plasmagel effectively, whereas infected erythrocytes of the South-African isolate (B.c. rossi) could not. Experimental infection of dogs with Babesia canis isolates from geographically different areas revealed different pathology. The European isolate obtained from France exhibited transient parasitaemia, usually below 1%, associated with low PCV values and congestion of internal organs. Clinical disease was correlated with an effect on the coagulation system, and not with peripheral parasitaemia. Infection of dogs with South-African-derived isolate induced high parasitaemia usually much higher than 1%, which required chemotherapeutic treatment. In these animals clinical disease was correlated with peripheral parasitaemia and not with parameters of the coagulation system. The results show that the etiology of disease caused by these isolates of B.c. canis and B.c. rossi is different. This might have implications for the development of vaccines against these infections.

  19. Spatial genetic analyses reveal cryptic population structure and migration patterns in a continuously harvested grey wolf (Canis lupus population in north-eastern Europe.

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    Maris Hindrikson

    Full Text Available Spatial genetics is a relatively new field in wildlife and conservation biology that is becoming an essential tool for unravelling the complexities of animal population processes, and for designing effective strategies for conservation and management. Conceptual and methodological developments in this field are therefore critical. Here we present two novel methodological approaches that further the analytical possibilities of STRUCTURE and DResD. Using these approaches we analyse structure and migrations in a grey wolf (Canislupus population in north-eastern Europe. We genotyped 16 microsatellite loci in 166 individuals sampled from the wolf population in Estonia and Latvia that has been under strong and continuous hunting pressure for decades. Our analysis demonstrated that this relatively small wolf population is represented by four genetic groups. We also used a novel methodological approach that uses linear interpolation to statistically test the spatial separation of genetic groups. The new method, which is capable of using program STRUCTURE output, can be applied widely in population genetics to reveal both core areas and areas of low significance for genetic groups. We also used a recently developed spatially explicit individual-based method DResD, and applied it for the first time to microsatellite data, revealing a migration corridor and barriers, and several contact zones.

  20. Genetic and Antigenic Evidence Supports the Separation of Hepatozoon canis and Hepatozoon americanum at the Species Level

    Science.gov (United States)

    Baneth, Gad; Barta, John R.; Shkap, Varda; Martin, Donald S.; Macintire, Douglass K.; Vincent-Johnson, Nancy

    2000-01-01

    Recognition of Hepatozoon canis and Hepatozoon americanum as distinct species was supported by the results of Western immunoblotting of canine anti-H. canis and anti-H. americanum sera against H. canis gamonts. Sequence analysis of 368 bases near the 3′ end of the 18S rRNA gene from each species revealed a pairwise difference of 13.59%. PMID:10699047

  1. First Case of Canine Infection with Hepatozoon canis (Apicomplexa: Haemogregarinidae) in the Republic of Korea.

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    Kwon, Seung-Joo; Kim, Yoon-Hee; Oh, Hyun-Hee; Choi, Ul-Soo

    2017-10-01

    This report describes a dog infected with Hepatozoon canis, the first canine infection in the Republic of Korea. A 2-year-old intact male Maltese dog presented with anorexia and depression. Physical examinations revealed mild dehydration and hyperthermia (39.8°C), and blood analysis showed pancytopenia. Diff-Quik staining of blood smear specimens showed the presence of ellipsoidal shaped structures (gamonts of H. canis) within a small number of neutrophils. Real-time PCR analysis using whole blood confirmed infection by H. canis. The clinical condition of the dog improved after symptomatic treatment and administration of doxycycline. Although a molecular epidemiologic survey in Korea showed H. canis infection of dogs, to our knowledge this is the first report of a dog infection in Korea molecularly shown to be H. canis.

  2. Neutropenia associated with osteomyelitis due to Hepatozoon canis infection in a dog.

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    Shimokawa Miyama, Takako; Umeki, Saori; Baba, Kenji; Sada, Kumiko; Hiraoka, Hiroko; Endo, Yasuyuki; Inokuma, Hisashi; Hisasue, Masaharu; Okuda, Masaru; Mizuno, Takuya

    2011-10-01

    A 4-year-old, intact male Shiba dog was referred to Yamaguchi University Animal Medical Center, Yamaguchi, Japan, for the following complaints: anorexia, lethargy, intermittent fever, gingival bleeding and abdominal purpura. The dog presented with persistent neutropenia. Histopathological examination of a bone marrow sample revealed round to oval structures that resembled Hepatozoon micromerozoites and formed a "wheel-spoke" pattern. Furthermore, mature neutrophils were observed around these structures. PCR and sequencing using bone marrow aspirate confirmed Hepatozoon canis (H. canis) infection. These findings suggest that the neutropenia observed in this case was associated with osteomyelitis due to H. canis infection. This is the first report of neutropenia associated with H. canis infection. H. canis infection can be included in the differential diagnosis in canine cases of neutropenia in areas where the disease is endemic.

  3. Cutaneous Hepatozoon canis infection in a dog from New Jersey.

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    Little, Liz; Baneth, Gad

    2011-05-01

    A 7-month-old mixed-breed intact female dog was presented to a private veterinarian with a 2 cm in diameter raised, pruritic, alopecic, subcutaneous, fluctuant swelling over the right eye. Cytology of the mass revealed many degenerate neutrophils, moderate numbers of eosinophils, moderate numbers of macrophages, rare mast cells, and few erythrocytes. Rare neutrophils contained a protozoal agent compatible with a Hepatozoon gamont. Real-time polymerase chain reaction of peripheral blood was positive for Hepatozoon canis. The complete sequence identity of the amplified 18S ribosomal RNA fragment from the dog's blood confirmed H. canis and proved it was relatively distant from the corresponding fragment sequence of Hepatozoon americanum. This case is important in documenting an unusual presentation of infection with H. canis outside of the southern United States. © 2011 The Author(s)

  4. Fatal Babesia canis canis infection in a splenectomized Estonian dog.

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    Tiškina, Valentina; Capligina, Valentina; Must, Külli; Berzina, Inese; Ranka, Renate; Jokelainen, Pikka

    2016-01-25

    A previously splenectomized dog from Estonia was presented with a sudden lack of appetite and discoloration of the urine. Despite supportive therapy, its condition deteriorated dramatically during 1 day. Severe thrombocytopenia and high numbers of protozoan hemoparasites were evident in blood smears, and the hematocrit dropped from 46 to 33 %. The dog was euthanized before specific antibabesial treatment was initiated. Blood samples from the dog and from two other dogs in the same household tested positive for Babesia using molecular methods, and the sequences of partial 18S rRNA gene confirmed the causative species as Babesia canis canis. The risk of severe, rapidly progressing babesiosis in splenectomized dogs merits awareness.

  5. The dog mite, Demodex canis: prevalence, fungal co-infection, reactions to light, and hair follicle apoptosis.

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    Tsai, Yu-Jen; Chung, Wen-Cheng; Wang, Lian-Chen; Ju, Yu-Ten; Hong, Chin-Lin; Tsai, Yu-Yang; Li, Yi-Hung; Wu, Ying-Ling

    2011-01-01

    Infection rate, reaction to light, and hair follicle apoptosis are examined in the dogmite, Demodex canis Leydig (Prostigmata: Demodicidae), in dogs from the northern area of Taiwan. An analysis of relevant samples revealed 7.2% (73/1013) prevalence of D. canis infection. Infection during the investigation peaked each winter, with an average prevalence of 12.5% (32/255). The infection rates significantly varied in accordance with month, sex, age, and breed (p canis Bodin (Onygenales: Arthrodermataceae) and Trichophyton mentagrophyte Robin (Blanchard) on the D. canis infected dogs revealed prevalence rates of 4.4% (2/45) and 2.2% (1/45), respectively. Observations demonstrated that D. canis slowly moved from a light area to a dark area. Skin samples were examined for cellular apoptosis by activated caspase3 immunohistochemical staining. Cells that surrounded the infected hair follicles were activated caspase3-positive, revealing cell apoptosis in infected follicles via the activation of caspase3.

  6. Byzantine Theme of Chios

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    Anton S. Mokhov

    2016-11-01

    Full Text Available The article is devoted to the study of the Byzantine theme system in the 10th - 11th centuries. The author believes that the reign of Basil II (976-1025 was marked by the mikra themata in Balkans and on Aegean Sea islands. They were in need of effective border defense. Theme of Chios was one of the mikra militaryadministrative districts, which were created in this period. The author detected five leaders of the theme in accordance with the historical sources: protospatharios and strategos Theodoros Beriboes; protospatharios, tagmatophylax and strategos Leon Karikes; protospatharios, tagmatophylax and strategos Bardas Mersiniotes; vestarches and strategos Ioannes Aristenos; vestes and strategos Michael Maurikas. The analysis of the sigillographic data led to the conclusion that the regular tagmata were the base of the military force of theme of Chios. Moreover, the fortress of Volissos was located in the northwest of Chios. The area around the fortress was inhabited by representatives of one ethnic group. They were under the leadership of doux, which was subordinate to the strategos of the theme. The famous officials of the civil administration of Chios included fiscal clerks – dioiketes, horreiarios and judicial clerks – krites of the velon. Theme of Chios had existed for about one hundred years. It was liquidated during the war between Byzantine and Tzachas, Turkish amir of Smyrna.

  7. The infection of questing Dermacentor reticulatus ticks with Babesia canis and Anaplasma phagocytophilum in the Chernobyl exclusion zone.

    Science.gov (United States)

    Karbowiak, Grzegorz; Vichová, Bronislavá; Slivinska, Kateryna; Werszko, Joanna; Didyk, Julia; Peťko, Branislav; Stanko, Michal; Akimov, Igor

    2014-08-29

    Tick occurrence was studied in the Chernobyl exclusion zone (CEZ) during the August-October 2009-2012. Dermacentor reticulatus ticks were collected using the flagging method and then screened for infection with Anaplasma phagocytophilum and Babesia canis by a PCR method incorporating specific primers and sequence analysis. The prevalence of infection with B. canis canis and A. phagocytophilum was found to be 3.41% and 25.36%, respectively. The results present the first evidence of B. canis canis and A. phagocytophilum in questing D. reticulatus ticks from the Chernobyl exclusion zone. They also reveal the presence of tick-borne disease foci in areas with no human activity, and confirm that they can be maintained in areas after a nuclear disaster with radioactive contamination. Copyright © 2014 Elsevier B.V. All rights reserved.

  8. Novel genotype of Ehrlichia canis detected in samples of human blood bank donors in Costa Rica.

    Science.gov (United States)

    Bouza-Mora, Laura; Dolz, Gaby; Solórzano-Morales, Antony; Romero-Zuñiga, Juan José; Salazar-Sánchez, Lizbeth; Labruna, Marcelo B; Aguiar, Daniel M

    2017-01-01

    This study focuses on the detection and identification of DNA and antibodies to Ehrlichia spp. in samples of blood bank donors in Costa Rica using molecular and serological techniques. Presence of Ehrlichia canis was determined in 10 (3.6%) out of 280 blood samples using polymerase chain reaction (PCR) targeting the ehrlichial dsb conserved gene. Analysis of the ehrlichial trp36 polymorphic gene in these 10 samples revealed substantial polymorphism among the E. canis genotypes, including divergent tandem repeat sequences. Nucleotide sequences of dsb and trp36 amplicons revealed a novel genotype of E. canis in blood bank donors from Costa Rica. Indirect immunofluorescence assay (IFA) detected antibodies in 35 (35%) of 100 serum samples evaluated. Thirty samples showed low endpoint titers (64-256) to E. canis, whereas five sera yielded high endpoint titers (1024-8192); these five samples were also E. canis-PCR positive. These findings represent the first report of the presence of E. canis in humans in Central America. Copyright © 2016 Elsevier GmbH. All rights reserved.

  9. Spatial distribution of Anaplasma phagocytophilum and Hepatozoon canis in red foxes (Vulpes vulpes) in Hungary.

    Science.gov (United States)

    Tolnai, Z; Sréter-Lancz, Z; Sréter, T

    2015-07-01

    In recent years, Ehrlichia canis and Hepatozoon canis transmitted by Rhipicephalus sanguineus were reported from Hungary. The aim of the present study was to reveal the spatial distribution pattern of pathogens transmitted by R. sanguineus in a sentinel species, red fox (Vulpes vulpes) in Hungary and to analyse the relationship of these patterns with landscape and climate by geographical information systems. Fox carcasses, representing 0.5% of the total fox population were randomly selected out of all the foxes of Hungary. The spleen samples of the animals were tested by real-time PCR for Anaplasma platys, Babesia vogeli, E. canis and H. canis infection. Positive results were confirmed by conventional PCR followed by sequencing. The prevalence of H. canis infection was 22.2% (95% CI=18.4-26.4%), and this parasite was detected in all areas including the mountain regions of Hungary. These findings indicate that other tick species or other transmission routes (oral and transplacental) might be in the background of the countrywide distribution of H. canis. Anaplasma platys was not found; nevertheless, the prevalence of Anaplasma phagocytophilum infection transmitted by Ixodes ricinus was 12.5% (95% CI=9.7-16.1%) in foxes. B. vogeli and E. canis infection was not detected. There was no correlation between environmental parameter values in the home range of foxes and A. phagocytophilum or H. canis infection, which is in line with that observed in the case of tick species infesting foxes in Hungary. The results of this study indicate that R. sanguineus, if present, might be rare in Hungary. Our baseline study can be used for future evaluation of the effect of climate change on the spreading and emergence of R. sanguineus transmitted pathogens in Hungary. Copyright © 2015 Elsevier GmbH. All rights reserved.

  10. Transstadial Transmission of Hepatozoon canis by Rhipicephalus sanguineus (Acari: Ixodidae) in Field Conditions.

    Science.gov (United States)

    Aktas, M; Özübek, S

    2017-07-01

    This study investigated possible transovarial and transstadial transmission of Hepatozoon canis by Rhipicephalus sanguineus (Latreille) ticks collected from naturally infected dogs in a municipal dog shelter and the grounds of the shelter. Four hundred sixty-five engorged nymphs were collected from 16 stray dogs that were found to be infected with H. canis by blood smear and PCR analyses and maintained in an incubator at 28 °C for moulting. Four hundred eighteen nymphs moulted to adults 14-16 d post collection. Unfed ticks from the shelter grounds comprised 1,500 larvae, 2,100 nymphs, and 85 adults; were sorted according to origin, developmental stage, and sex into 117 pools; and screened by 18S rRNA PCR for Hepatozoon infection. Of 60 adult tick pools examined, 51 were infected with H. canis. The overall maximum likelihood estimate (MLE) of infection rate was calculated as 21.0% (CI 15.80-28.21). Hepatozoon canis was detected in 31 out of 33 female pools (MLE 26.96%, CI 17.64-44.33) and 20 out of 27 male pools (MLE 14.82%, CI 20.15-46.41). Among 42 unfed nymph pools collected from the shelter, 26 were infected with H. canis, and MLE of infection was calculated as 1.9% (CI 1.25-2.77). No H. canis DNA was detected in any of the gDNA pools consisting of larva specimens. Partial sequences of the 18S rRNA gene shared 99-100% similarity with the corresponding H. canis isolates. Our results revealed the transstadial transmission of H. canis by R. sanguineus, both from larva to nymph and from nymph to adult, in field conditions. However, there were no evidence of transovarial transmission. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  11. Transstadial transmission of Hepatozoon canis from larvae to nymphs of Rhipicephalus sanguineus.

    Science.gov (United States)

    Giannelli, Alessio; Ramos, Rafael Antonio Nascimento; Di Paola, Giancarlo; Mencke, Norbert; Dantas-Torres, Filipe; Baneth, Gad; Otranto, Domenico

    2013-09-01

    Hepatozoon canis is an apicomplexan parasite of dogs, which is known to become infected by ingesting Rhipicephalus sanguineus adult ticks. To investigate the possibility of H. canis transovarial and transstadial transmission from larvae to nymphs, engorged adult female ticks were collected from a private animal shelter in southern Italy, where H. canis infection is highly prevalent. Female ticks (n=35) and egg batches were tested by PCR for H. canis. All eggs examined were PCR-negative whereas 88.6% of females from the environment tested positive. Additionally, fed larvae (n=120) from a dog naturally infected by H. canis were dissected at different time points post collection (i.e. 0, 10, 20 and 30 days). Molted nymphs dissected at 20 days post collection revealed immature oocysts displaying an amorphous central structure in 50% of the specimens, and oocysts containing sporocysts with sporozoites were found in 53.3% of the nymphs dissected at 30 days post collection. This study demonstrates that H. canis is not transmitted transovarially, but it is transmitted transstadially from larvae to nymphs of R. sanguineus and develops sporozoites in oocysts that may infect dogs. Copyright © 2013 Elsevier B.V. All rights reserved.

  12. Molecular detection of Hepatozoon canis in dogs from Kerala.

    Science.gov (United States)

    Lakshmanan, Bindu; Jose, K Jain; George, Arun; Usha, N P; Devada, K

    2018-06-01

    India has a wide range of agro-climatic zones which is highly conducive for a diverse range of vectors and canines are continuously exposed to the risk of spectrum of tick borne protozoan diseases. The brown dog tick, Rhipicephalus sanguineus is widely prevalent among dogs in Kerala and there is a high prevalence of this tick transmitted Babesia and Ehrlichia spp. infection. However, the incidence of Hepatozoon canis transmitted by the same tick species had not been reported in the state since 2004. Preliminary screening of client owned dogs revealed six dogs to be positive for typical gelatin capsule shaped gamonts of H. canis within neutrophils in blood smear by microscopic examination. A PCR assay was standardized to amplify a specific 737 bp fragment of 18S rRNA gene of H. canis. Phylogenetic analysis revealed closest relationship with West Indies isolate deposited at GenBank database. The present study records the molecular detection of this haemoparasite in the state, for the first time.

  13. Theme: Urban Agriculture.

    Science.gov (United States)

    Ellibee, Margaret; And Others

    1990-01-01

    On the theme of secondary agricultural education in urban areas, this issue includes articles on opportunities, future directions, and implications for the profession; creative supervised experiences for horticulture students; floral marketing, multicultural education; and cultural diversity in urban agricultural education. (JOW)

  14. Theme: Parents and Reading.

    Science.gov (United States)

    Jund, Suzanne, Ed.

    1977-01-01

    This journal issue concentrates on the theme "Parents and Reading." It presents articles on sharing books with young children, using public relations in a reading program, guiding preschool learning, assessing language readiness, working with reading problems, and teaching reading readiness in Wisconsin kindergartens. Resources and a review of…

  15. Unity in Major Themes

    DEFF Research Database (Denmark)

    Booss-Bavnbek, Bernhelm; Davis, Philip J.

    We describe and explain the desire, common among mathematicians, both for unity and independence in its major themes. In the dialogue that follows, we express our spontaneous and considered judgment and reservations; by contrasting the development of mathematics as a goal-driven process as opposed...

  16. FY17 Strategic Themes.

    Energy Technology Data Exchange (ETDEWEB)

    Leland, Robert W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-03-01

    I am pleased to present this summary of the FY17 Division 1000 Science and Technology Strategic Plan. As this plan represents a continuation of the work we started last year, the four strategic themes (Mission Engagement, Bold Outcomes, Collaborative Environment, and Safety Imperative) remain the same, along with many of the goals. You will see most of the changes in the actions listed for each goal: We completed some actions, modified others, and added a few new ones. As I’ve stated previously, this is not a strategy to be pursued in tension with the Laboratory strategic plan. The Division 1000 strategic plan is intended to chart our course as we strive to contribute our very best in service of the greater Laboratory strategy. I welcome your feedback and look forward to our dialogue about these strategic themes. Please join me as we move forward to implement the plan in the coming months.

  17. FY16 Strategic Themes.

    Energy Technology Data Exchange (ETDEWEB)

    Leland, Robert W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-03-01

    I am pleased to present this summary of the Division 1000 Science and Technology Strategic Plan. This plan was created with considerable participation from all levels of management in Division 1000, and is intended to chart our course as we strive to contribute our very best in service of the greater Laboratory strategy. The plan is characterized by four strategic themes: Mission Engagement, Bold Outcomes, Collaborative Environment, and the Safety Imperative. Each theme is accompanied by a brief vision statement, several goals, and planned actions to support those goals throughout FY16. I want to be clear that this is not a strategy to be pursued in tension with the Laboratory strategic plan. Rather, it is intended to describe “how” we intend to show up for the “what” described in Sandia’s Strategic Plan. I welcome your feedback and look forward to our dialogue about these strategic themes. Please join me as we move forward to implement the plan in the coming year.

  18. A report of a Hepatozoon canis infection in a dog with transmissible venereal tumour

    Directory of Open Access Journals (Sweden)

    Namakkal Rajamanickam Senthil

    2015-10-01

    Full Text Available In the present study, a case of a Hepatozoan canis infection in a dog with a sexually transmissible venereal tumour is reported. Haematological examination revealed marked decrease in haemoglobin, PCV and RBC counts and the blood smear revealed rouleaux formation of RBC, hypochromasia, leptocytes and neutrophilia. Neutrophils were parasitized with both non-nucleated and stained nucleated forms of H. canis. Serum biochemistry results showed elevated levels of alkaline phosphatise, whereas blood urea nitrogen, creatinine, total protein, albumin and globulin were in the normal range.

  19. Instant premium Drupal themes

    CERN Document Server

    Sharma, Pankaj

    2013-01-01

    Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. A step-by-step guide filled with recipes that will show you how to create your very own Drupal themes using HTML.This book is great for developers who are new to Drupal. It is assumed that you have some experience in HTML, PHP, and CSS. You'll need a PHP (LAMP/WAMP) environment to install Drupal. It is also assumed that you know how to install Drupal. Some familiarity with CMS will be useful but is not essential.

  20. Drupal 7 Theming Cookbook

    CERN Document Server

    Kumar, Karthik

    2012-01-01

    Part of Packt's Cookbook series, this book offers solutions to common theme design problems in the form of recipes. Each recipe contains step-by-step instructions and screenshots. The book is designed so that you can read it chapter by chapter, or you can refer to each recipe in no particular order. This book is for Drupal developers and administrators who want to refresh the look and feel of their site. We assume that readers are familiar with basic PHP, CSS, and XHTML as well as the general use of Drupal.

  1. A case report: a dog with acute onset of Hepatozoon canis infection.

    Science.gov (United States)

    Sakuma, Masato; Nakahara, Yoshitaka; Suzuki, Hiroyuki; Uchimura, Masato; Sekiya, Zin; Setoguchi, Asuka; Endo, Yasuyuki

    2009-06-01

    We present a clinical overview of a dog with acute onset of Hepatozoon canis infection. A stray female beagle dog of unknown age was referred to Kagoshima University showing anemia. Blood tests revealed the presence of anemia, thrombocytopenia, hyperproteinemia, polyclonal gammopathy, hypoalbuminemia, and elevated creatine kinase and alkaline phosphatase activities. In addition, capsule-like organisms were detected in the cytoplasm of approximately 50% of neutrophils in blood smears. H. canis infection was confirmed by polymerase chain reaction and DNA sequencing analyses. Amplified DNA fragments revealed 100% identity to the 18S ribosomal RNA gene of H. canis. The clinical symptoms improved after the administration of antibiotics. Hepatozoonosis in dogs is rare, but veterinarians should be alert to its possible acute onset.

  2. Detection of Babesia canis rossi, B. canis vogeli, and Hepatozoon canis in Dogs in a Village of Eastern Sudan by Using a Screening PCR and Sequencing Methodologies

    Science.gov (United States)

    Oyamada, Maremichi; Davoust, Bernard; Boni, Mickaël; Dereure, Jacques; Bucheton, Bruno; Hammad, Awad; Itamoto, Kazuhito; Okuda, Masaru; Inokuma, Hisashi

    2005-01-01

    Babesia and Hepatozoon infections of dogs in a village of eastern Sudan were analyzed by using a single PCR and sequencing. Among 78 dogs, 5 were infected with Babesia canis rossi and 2 others were infected with B. canis vogeli. Thirty-three dogs were positive for Hepatozoon. Hepatozoon canis was detected by sequence analysis. PMID:16275954

  3. Detection of Babesia canis rossi, B. canis vogeli, and Hepatozoon canis in dogs in a village of eastern Sudan by using a screening PCR and sequencing methodologies.

    Science.gov (United States)

    Oyamada, Maremichi; Davoust, Bernard; Boni, Mickaël; Dereure, Jacques; Bucheton, Bruno; Hammad, Awad; Itamoto, Kazuhito; Okuda, Masaru; Inokuma, Hisashi

    2005-11-01

    Babesia and Hepatozoon infections of dogs in a village of eastern Sudan were analyzed by using a single PCR and sequencing. Among 78 dogs, 5 were infected with Babesia canis rossi and 2 others were infected with B. canis vogeli. Thirty-three dogs were positive for Hepatozoon. Hepatozoon canis was detected by sequence analysis.

  4. Detection of Babesia canis rossi, B. canis vogeli, and Hepatozoon canis in Dogs in a Village of Eastern Sudan by Using a Screening PCR and Sequencing Methodologies

    OpenAIRE

    Oyamada, Maremichi; Davoust, Bernard; Boni, Mickaël; Dereure, Jacques; Bucheton, Bruno; Hammad, Awad; Itamoto, Kazuhito; Okuda, Masaru; Inokuma, Hisashi

    2005-01-01

    Babesia and Hepatozoon infections of dogs in a village of eastern Sudan were analyzed by using a single PCR and sequencing. Among 78 dogs, 5 were infected with Babesia canis rossi and 2 others were infected with B. canis vogeli. Thirty-three dogs were positive for Hepatozoon. Hepatozoon canis was detected by sequence analysis.

  5. Molecular Detection and Prevalence of Hepatozoon canis in Dogs from Punjab (Pakistan) and Hematological Profile of Infected Dogs.

    Science.gov (United States)

    Qamar, Muhammad; Malik, Muhammad Irfan; Latif, Muhammad; Ain, Qurat Ul; Aktas, Munir; Shaikh, Rehan Sadiq; Iqbal, Furhan

    2017-03-01

    The intraleukocytic parasite, Hepatozoon canis, causes the sometimes fatal tick borne disease canine hepatozoonosis. In this study, dogs from Islamabad, Lahore, and Multan Districts of the Punjab region of Pakistan were surveyed to investigate the presence and prevalence of H. canis infection and to determine the effects of the parasite on hematological parameters. Blood samples were collected from 151 domestic dogs (149 pet, 2 stray) of both sexes and varying ages. Data on sex, age, tick infestation, and clinical factors (body temperature, mucous membrane status, and presence of hematuria and vomiting) were collected. Using PCR, 18 dogs (11.9%) were found positive for the presence of H. canis DNA. Partial sequences of the 18S rRNA gene shared 99-100% similarity with the corresponding H. canis isolates. This epidemiological survey revealed higher prevalence of H. canis in Islamabad (11/49, 22.4%) compared to Lahore (3/52, 5.8%) and Multan (4/50, 8%) in Pakistan. No investigated epidemiological or clinical factors were found to be associated with the presence of H. canis (p > 0.05) in dogs. H. canis positive dogs exhibited higher minimum inhibitory dilution (p = 0.04), mixed inclusion (p = 0.008) and relative distribution width of red blood cells (p = 0.02), and lower hematocrit (p = 0.03) and mean hemoglobin content (p = 0.03) than did dogs in which H. canis was not detected. We are recommending this PCR-based protocol to the veterinary practitioners for the detection and/or confirmation of H. canis in dogs suspected for hepatozoonosis to improve their health status.

  6. Detection of Hepatozoon canis in the Brown Dog Tick and Domestic Dogs in Peninsular Malaysia.

    Science.gov (United States)

    Prakash, Batah Kunalan; Low, Van Lun; Tan, Tiong Kai; Vinnie-Siow, Wei Yin; Lim, Yvonne Ai-Lian; Morvarid, Akhavan Rezaei; Azman, Adzzie Shazleen; Yeong, Yze Shiuan; AbuBakar, Sazaly; Sofian-Azirun, Mohd

    2018-05-17

    Hepatozoon canis has been widely reported in dogs. Its prevalence in ticks, however, has not been well-established. Here we determine the occurrence of Hepatozoon DNA in the brown dog tick Rhipicephalus sanguineus (Latreille) (Acari: Ixodidae) sensu lato (s.l.) and domestic dogs from Peninsular Malaysia using a polymerase chain reaction (PCR) assay based on amplification of the 18S ribosomal RNA coding sequence. Our results revealed a relatively low prevalence of H. canis DNA in both R. sanguineus s.l. (0.7%) and dogs (3.33%). This study represents the first report of H. canis DNA in R. sanguineus s.l. in Malaysia, highlighting the risk of this infection in dogs.

  7. Particle physics: Themes and challenges

    International Nuclear Information System (INIS)

    Quigg, C.

    1995-11-01

    I will devote this lecture to seven themes that express the essence of our understanding and our possibilities. These themes are: elementarity, symmetry, consistency, unity, identity, opportunity, and relevance

  8. Particle physics: Themes and challenges

    Energy Technology Data Exchange (ETDEWEB)

    Quigg, C.

    1995-11-01

    I will devote this lecture to seven themes that express the essence of our understanding and our possibilities. These themes are: elementarity, symmetry, consistency, unity, identity, opportunity, and relevance.

  9. Identification of Babesia canis genotypes in dogs from Lithuania

    OpenAIRE

    Tamoliūnaitė, Dovilė; Radzijevskaja, Jana; Paulauskas, Algimantas; Sabūnas, Vytautas; Karvelienė, Birutė; Zamokas, Gintaras

    2018-01-01

    Canine babesiosis is a widespread tick-borne disease caused by haematozoan parasites of the genus Babesia. The vast majority of clinical babesiosis cases in dogs in Europe is caused by Babesia canis. Canine babesiosis has become quite frequent in Lithuania during the past decade. Babesiosis caused by B. canis may range from mild to severe disease in dogs. Such difference in the virulence of B. canis strains is associated with genetic heterogeneity among B. canis strains. We aimed to investiga...

  10. A golden jackal (Canis aureus) from Austria bearing Hepatozoon canis--import due to immigration into a non-endemic area?

    Science.gov (United States)

    Duscher, Georg Gerhard; Kübber-Heiss, Anna; Richter, Barbara; Suchentrunk, Franz

    2013-02-01

    The protozoan Hepatozoon canis, which is transmitted via ingestion of infected ticks by canine hosts, is not endemic to mid-latitude regions in Europe. Its distribution is supposed to be linked to the occurrence of its primary tick vector Rhipicephalus sanguineus. A young male golden jackal (Canis aureus) found as road kill close to Vienna, Austria, was infected by this pathogen. Cloning and sequencing of the PCR product revealed 6 different haplotypes of H. canis. Based on the sequences, no clear relationship to the origin of infection could be traced. This is the first report of H. canis for Austria, and wild canines such as the currently found jackal may provide a source of natural spread of this parasite into non-endemic areas. This natural immigration of wild animals represents a way of pathogen introduction, which has to be considered in disease prevention in addition to human-made introduction due to animal import and export. Copyright © 2012 Elsevier GmbH. All rights reserved.

  11. Critical analysis of vector-borne infections in dogs: Babesia vogeli, Babesia gibsoni, Ehrlichia canis and Hepatozoon canis in Punjab, India.

    Science.gov (United States)

    Singla, Lachhman Das; Sumbria, Deepak; Mandhotra, Ajay; Bal, M S; Kaur, Paramjit

    2016-12-01

    There are few published studies on various vector borne diseases of dogs in India and most depict clinical infection in dogs, diagnosed by observation of the haemopathogens in stained blood smears. This study provides the first report regarding molecular confirmation and ancestral relationship analysis of blood smears positive cases of assorted haemopathogens in Punjab province of India. On blood smear examination, haemopathogens were observed in 124 out of 778 (15.95%, 95% CI: 13.53- 18.68) blood smears. Further polymerase chain reactions (PCR) was used on bloods smear positive cases to validate the results. Out of 778 blood samples, Babesia gibsoni was most common parasite infecting dogs (15.04%, 95% CI: 12.7-17.72), followed by Ehrlichia canis (0.39%, 95% CI: 0.0-1.13), infection of Babesia vogeli and Hepatozoon canis was same (0.26%, 95% CI: 0.0-0.9). Among various risk factors studied (age, sex, season), prevalence of infection was non-significantly higher in 1-2 year of age group (19.88%, 95% CI: 14.45-26.71), regarding sex same prevalence was recorded (15.94%), and chances of infection was highest in pre-monsoon i.e. summer (18.26%, 95% CI: 14.49-22.76). Phylogenetic analysis revealed ancestral background of Ludhiana isolates of B. vogeli, B. gibsoni, H. canis, and E. canis with the isolates of Philippines, Mongolia and Tunisia.

  12. Questing Dermacentor reticulatus harbouring Babesia canis DNA associated with outbreaks of canine babesiosis in the Swiss Midlands.

    Science.gov (United States)

    Schaarschmidt, Daniel; Gilli, Urs; Gottstein, Bruno; Marreros, Nelson; Kuhnert, Peter; Daeppen, Jérôme A; Rosenberg, Gertrud; Hirt, Didier; Frey, Caroline F

    2013-06-01

    In 2011 and 2012, outbreaks of clinical canine babesiosis were observed in 2 areas of the Swiss Midlands that had no history of this disease so far. In one area, cases of canine babesiosis occurred over 2 consecutive tick seasons. The outbreaks involved 29 dogs, 4 of which died. All dogs were infected with large Babesia sp. as diagnosed in Giemsa-stained blood smears and/or PCR. These were identified as B. canis (formerly known as B. canis canis) by subsequent partial sequencing of the 18S rRNA gene of Babesia sp. Interestingly, the sequence indicated either a genotype with heterogeneity in the ssrRNA gene copies or double infection with different B. canis isolates. None of the dogs had a recent travel history, but one had frequently travelled to Hungary and had suffered twice from clinical babesiosis 18 and 24 months prior to the outbreak in autumn 2011. Retrospective sequencing of a stored blood DNA sample of this dog revealed B. canis, with an identical sequence to the Babesia involved in the outbreaks. For the first time in Switzerland, the partial 18S rRNA gene of B. canis could be amplified from DNA isolated from 19 out of 23 adult Dermacentor reticulatus ticks flagged in the same area. The sequence was identical to that found in the dogs. Furthermore, one affected dog carried a female D. reticulatus tick harbouring B. canis DNA. Our findings illustrate that, under favourable biogeographic and climatic conditions, the life-cycle of B. canis can relatively rapidly establish itself in previously non-endemic areas. Canine babesiosis should therefore always be a differential diagnosis when dogs with typical clinical signs are presented, regardless of known endemic areas. Copyright © 2013 Elsevier GmbH. All rights reserved.

  13. Demodicosis caused by Demodex canis and Demodex cornei in dogs.

    Science.gov (United States)

    Sivajothi, S; Sudhakara Reddy, B; Rayulu, V C

    2015-12-01

    Two mongrel dogs aged between 7 and 9 months in a same house were presented to the clinics with a history of chronic dermatitis associated with pruritus. Clinical examination revealed presence of primary and secondary skin lesions on the face, around the ears, chin, neck, fore limbs and lateral abdomen. Examination of skin scrapings revealed Demodex cornei (majority) and D. canis (minority) in both the dogs. By using hair pluck examination D. canis were detected and by tape impression smears examination large number of adult short-tail Demodex mites were found. D. cornei was identified by based on the morphological characters including short opisthosoma with blind and round terminal end. Mean length of total body, opisthosoma of both types of the mites were differed statistically significant (P  0.05). Dogs were treated with daily oral ivermectin @ 500 μg/kg/day, external application of amitraz along with supportive therapy. After completion of 45 days of therapy dogs were recovered completely without any side effects.

  14. Molecular and histopathological detection of Hepatozoon canis in red foxes (Vulpes vulpes) from Portugal.

    Science.gov (United States)

    Cardoso, Luís; Cortes, Helder C E; Eyal, Osnat; Reis, Antónia; Lopes, Ana Patrícia; Vila-Viçosa, Maria João; Rodrigues, Paula A; Baneth, Gad

    2014-03-24

    Hepatozoon canis is a protozoan tick-borne pathogen of dogs and wild canids. Hepatozoon spp. have been reported to infect foxes in different continents and recent studies have mostly used the polymerase chain reaction (PCR) for the detection and characterization of the infecting species. Surveying red foxes (Vulpes vulpes) may contribute to better understanding the epidemiology of canine vector-borne diseases, including hepatozoonosis caused by H. canis in domestic dogs. The present study investigated the prevalence of Hepatozoon spp. by means of histopathology and molecular analysis of different tissues in red foxes from different parts of Portugal. Blood and tissues including bone marrow, heart, hind leg muscle, jejunum, kidney, liver, lung, popliteal or axillary lymph nodes, spleen and/or tongue were collected from 91 red foxes from eight districts in northern, central and southern Portugal. Tissues were formalin-fixed, paraffin-embedded, cut and stained with hematoxylin and eosin. Polymerase chain reaction (PCR) amplified a ~650 bp fragment of the 18S rRNA gene of Hepatozoon spp. and the DNA products were sequenced. Hepatozoon canis was detected in 68 out of 90 foxes (75.6%) from all the sampled areas by PCR and sequencing. Histopathology revealed H. canis meronts similar in shape to those found in dogs in the bone marrow of 11 (23.4%) and in the spleen of two (4.3%) out of 47 foxes (p = 0.007). All the 11 foxes found positive by histopathology were also positive by PCR of bone marrow and/or blood. Positivity by PCR (83.0%) was significantly higher (p Hepatozoon canis was found to be highly prevalent in red fox populations from northern, central and southern Portugal. Detection of the parasite by histopathology was significantly less sensitive than by PCR. Red foxes are a presumptive reservoir of H. canis infection for domestic dogs.

  15. Comparative Experimental Infection Study in Dogs with Ehrlichia canis, E. chaffeensis, Anaplasma platys and A. phagocytophilum.

    Science.gov (United States)

    Nair, Arathy D S; Cheng, Chuanmin; Ganta, Chanran K; Sanderson, Michael W; Alleman, Arthur R; Munderloh, Ulrike G; Ganta, Roman R

    2016-01-01

    Dogs acquire infections with the Anaplasmataceae family pathogens, E. canis, E. chaffeensis, E. ewingii, A. platys and A. phagocytophilum mostly during summer months when ticks are actively feeding on animals. These pathogens are also identified as causing diseases in people. Despite the long history of tick-borne diseases in dogs, much remains to be defined pertaining to the clinical and pathological outcomes of infections with these pathogens. In the current study, we performed experimental infections in dogs with E. canis, E. chaffeensis, A. platys and A. phagocytophilum. Animals were monitored for 42 days to evaluate infection-specific clinical, hematological and pathological differences. All four pathogens caused systemic persistent infections detectible throughout the 6 weeks of infection assessment. Fever was frequently detected in animals infected with E. canis, E. chaffeensis, and A. platys, but not in dogs infected with A. phagocytophilum. Hematological differences were evident in all four infected groups, although significant overlap existed between the groups. A marked reduction in packed cell volume that correlated with reduced erythrocytes and hemoglobin was observed only in E. canis infected animals. A decline in platelet numbers was common with E. canis, A. platys and A. phagocytophilum infections. Histopathological lesions in lung, liver and spleen were observed in all four groups of infected dogs; infection with E. canis had the highest pathological scores, followed by E. chaffeensis, then A. platys and A. phagocytophilum. All four pathogens induced IgG responses starting on day 7 post infection, which was predominantly comprised of IgG2 subclass antibodies. This is the first detailed investigation comparing the infection progression and host responses in dogs after inoculation with four pathogens belonging to the Anaplasmataceae family. The study revealed a significant overlap in clinical, hematological and pathological changes resulting from the

  16. Babesia canis vogeli, Ehrlichia canis, and Anaplasma platys infection in a dog.

    Science.gov (United States)

    Al Izzi, Salah; Martin, Donald S; Chan, Roxanne Y Y; Leutenegger, Christian M

    2013-12-01

    A 12-month-old male neutered mixed breed dog was presented with a history of diarrhea, lethargy, emaciation, polydypsia, and sniffling. Physical examination findings included pale mucous membranes, increased heart and respiratory rates, and normal rectal temperature (38°C). Hematologic abnormalities included anemia and thrombocytopenia. Biochemical abnormalities included hypoalbuminemia, hyperbilirubinemia, and elevated ALP and ALT activities. A SNAP 4Dx test result was positive for Ehrlichia canis. Babesia canis vogeli organisms were found in the peripheral blood films, while morulae of E canis were not seen. Real-time polymerase chain reaction testing confirmed the presence of both B c vogeli and E canis organisms, and also was positive for Anaplasma platys infection. The dog recovered following treatment with doxycycline and imidocarb dipropionate, with normal hematology and biochemical profiles. © 2013 American Society for Veterinary Clinical Pathology.

  17. Molecular detection of Hepatozoon canis and Babesia canis vogeli in domestic dogs from Cuiabá, Brazil Detecção molecular de Hepatozoon canis e Babesia canis vogeli em cães domésticos de Cuiabá, Brasil

    Directory of Open Access Journals (Sweden)

    Mariana Granziera Spolidorio

    2011-09-01

    Full Text Available The objective of this study was to report for the first time infection by Hepatozoon spp. and Babesia spp. in 10 dogs from the city of Cuiabá, State of Mato Grosso, central-western Brazil. A pair of primers that amplifies a 574 bp fragment of the 18S rRNA of Hepatozoon spp., and a pair of primers that amplifies a 551 bp fragment of the gene 18S rRNA for Babesia spp. were used. Six dogs were positive for Babesia spp., and 9 were positive for Hepatozoon spp. Co-infection of Babesia spp. and Hepatozoon spp. was seen in 5 dogs. Sequenced samples revealed 100% identity with B. canis vogeli, and H. canis. This is the first molecular detection of H. canis in domestic dogs from Cuiabá. Additionally, it is described for the first time the presence of B. canis vogeli circulating among dogs in Cuiabá.O objetivo deste estudo foi relatar pela primeira vez a infecção por Hepatozoon spp. e Babesia spp. em cães domésticos provenientes da cidade de Cuiabá, estado de Mato Grosso. Foram utilizados pares de primers que amplificam um fragmento de 574 pb do gene 18S rRNA de Hepatozoon spp., e 551 pb do gene 18S rRNA para Babesia spp. Dos 10 cães amostrados, 6 apresentaram-se positivos para Babesia spp., e 9 foram positivos para Hepatozoon spp. pela PCR. Co-infecção entre Babesia spp. e Hepatozoon spp. ocorreu em 5 cães. As amostras revelaram 100% de identidade com B. canis vogeli, e as amostras que foram positivas para Hepatozoon spp. foram 100% idênticas a H. canis. Esta é a primeira identificação molecular de H. canis em cães domésticos em Cuiabá. Adicionalmente, descrevemos pela primeira vez a presença de B. canis vogeli circulando entre cães em Cuiabá.

  18. The mitochondrial genome of Toxocara canis.

    Science.gov (United States)

    Jex, Aaron R; Waeschenbach, Andrea; Littlewood, D Timothy J; Hu, Min; Gasser, Robin B

    2008-08-06

    Toxocara canis (Ascaridida: Nematoda), which parasitizes (at the adult stage) the small intestine of canids, can be transmitted to a range of other mammals, including humans, and can cause the disease toxocariasis. Despite its significance as a pathogen, the genetics, epidemiology and biology of this parasite remain poorly understood. In addition, the zoonotic potential of related species of Toxocara, such as T. cati and T. malaysiensis, is not well known. Mitochondrial DNA is known to provide genetic markers for investigations in these areas, but complete mitochondrial genomic data have been lacking for T. canis and its congeners. In the present study, the mitochondrial genome of T. canis was amplified by long-range polymerase chain reaction (long PCR) and sequenced using a primer-walking strategy. This circular mitochondrial genome was 14162 bp and contained 12 protein-coding, 22 transfer RNA, and 2 ribosomal RNA genes consistent for secementean nematodes, including Ascaris suum and Anisakis simplex (Ascaridida). The mitochondrial genome of T. canis provides genetic markers for studies into the systematics, population genetics and epidemiology of this zoonotic parasite and its congeners. Such markers can now be used in prospecting for cryptic species and for exploring host specificity and zoonotic potential, thus underpinning the prevention and control of toxocariasis in humans and other hosts.

  19. The mitochondrial genome of Toxocara canis.

    Directory of Open Access Journals (Sweden)

    Aaron R Jex

    2008-08-01

    Full Text Available Toxocara canis (Ascaridida: Nematoda, which parasitizes (at the adult stage the small intestine of canids, can be transmitted to a range of other mammals, including humans, and can cause the disease toxocariasis. Despite its significance as a pathogen, the genetics, epidemiology and biology of this parasite remain poorly understood. In addition, the zoonotic potential of related species of Toxocara, such as T. cati and T. malaysiensis, is not well known. Mitochondrial DNA is known to provide genetic markers for investigations in these areas, but complete mitochondrial genomic data have been lacking for T. canis and its congeners. In the present study, the mitochondrial genome of T. canis was amplified by long-range polymerase chain reaction (long PCR and sequenced using a primer-walking strategy. This circular mitochondrial genome was 14162 bp and contained 12 protein-coding, 22 transfer RNA, and 2 ribosomal RNA genes consistent for secementean nematodes, including Ascaris suum and Anisakis simplex (Ascaridida. The mitochondrial genome of T. canis provides genetic markers for studies into the systematics, population genetics and epidemiology of this zoonotic parasite and its congeners. Such markers can now be used in prospecting for cryptic species and for exploring host specificity and zoonotic potential, thus underpinning the prevention and control of toxocariasis in humans and other hosts.

  20. The Mitochondrial Genome of Toxocara canis

    Science.gov (United States)

    Littlewood, D. Timothy J.; Hu, Min; Gasser, Robin B.

    2008-01-01

    Toxocara canis (Ascaridida: Nematoda), which parasitizes (at the adult stage) the small intestine of canids, can be transmitted to a range of other mammals, including humans, and can cause the disease toxocariasis. Despite its significance as a pathogen, the genetics, epidemiology and biology of this parasite remain poorly understood. In addition, the zoonotic potential of related species of Toxocara, such as T. cati and T. malaysiensis, is not well known. Mitochondrial DNA is known to provide genetic markers for investigations in these areas, but complete mitochondrial genomic data have been lacking for T. canis and its congeners. In the present study, the mitochondrial genome of T. canis was amplified by long-range polymerase chain reaction (long PCR) and sequenced using a primer-walking strategy. This circular mitochondrial genome was 14162 bp and contained 12 protein-coding, 22 transfer RNA, and 2 ribosomal RNA genes consistent for secernentean nematodes, including Ascaris suum and Anisakis simplex (Ascaridida). The mitochondrial genome of T. canis provides genetic markers for studies into the systematics, population genetics and epidemiology of this zoonotic parasite and its congeners. Such markers can now be used in prospecting for cryptic species and for exploring host specificity and zoonotic potential, thus underpinning the prevention and control of toxocariasis in humans and other hosts. PMID:18682828

  1. Activities Using a Restaurant Theme.

    Science.gov (United States)

    Modlin, Ruth

    Designed for use with elementary students, 44 activities using a restaurant theme integrate creative thinking and decision-making skills with language arts, mathematics, and art. The activities, which can be used independently by the students, deal with types of restaurants, names and themes, floor plans, interior and exterior design, house…

  2. A PARASITOLOGIC AND MOLECULAR SURVEY OF HEPATOZOON CANIS INFECTION IN STRAY DOGS IN NORTHEAST OF IRAN.

    Science.gov (United States)

    Barati, Ali; Razmi, Gholamreza

    2018-05-15

    Canine hepatozoonosis, caused by H. canis, is a tick-borne disease in domestic and wild dogs that is transmitted by ingestion of Rhipicephalus sanguineus ticks. The aim of the study was to detect H. canis in stray dogs in Iran using blood smear examination and molecular techniques. From October 2014 to September 2015, 150 EDTA blood samples were collected from stray dogs in the northeast region of Iran. Blood smears were microscopically examined for the presence of Hepatozoon gamonts; whole blood was evaluated by PCR, with subsequent sequencing and phylogenetic analysis. Hepatozoon spp. Gamonts were observed in the neutrophils of 5/150 (3.3%) blood smears, whereas Hepatozoon spp. 18S rDNA was detected in 12/150 (8.0%) blood samples from stray dogs. There was a good agreement between microscopy and PCR methods. (Kappa= 0.756). The highest rate of infection was seasonally detected in the summer (pHepatozoon spp infection was not significant by gender and age factors (p>0.05). The alignment analysis of the sequenced samples showed ≥99% similarity with other nucleotide sequences of Hepatozoon spp. in GenBank. The phylogenetic tree also revealed that the nucleotide sequences in this study were clustered in the H. canis clade and different from the H. felis and H. americanum clades. According to the results, it is concluded that H. canis infection is present among dogs in northeastern region of Iran.

  3. Molecular epidemiology of parasitic protozoa and Ehrlichia canis in wildlife in Madrid (central Spain).

    Science.gov (United States)

    Criado-Fornelio, Angel; Martín-Pérez, T; Verdú-Expósito, C; Reinoso-Ortiz, S A; Pérez-Serrano, J

    2018-07-01

    Wildlife species are involved in the transmission of diverse pathogens. This study aimed to monitor raccoons (Procyon lotor), American minks (Neovison vison), and red foxes (Vulpes vulpes) as potential reservoirs in central Spain. Specifically, 200 spleen and fecal samples (from 194 raccoons, 3 minks, and 3 foxes) were analyzed molecularly by PCR/qPCR and sequencing for the presence of piroplasmids, Hepatozoon spp., Toxoplasma gondii, and Ehrlichia canis infections in the Community of Madrid (Spain). Biological samples were obtained in the years 2014, 2015, and 2016. No pathogen DNA was found in fecal samples. In contrast, analysis of raccoon spleen samples revealed that Toxoplasma was the most prevalent pathogen (prevalence 3.6 ± 2.6%), followed by Hepatozoon canis and E. canis (each with a prevalence of 2.57 ± 2.2%). Hepatozoon canis was also diagnosed in all three of the analyzed foxes. Analysis of yearly prevalence showed that tick-borne pathogens were less frequent in raccoon in 2015, a dry and warm year compared both to 2014 and 2016. These data suggest that fecal PCR assays are unsuitable for detection of DNA of non-erythrocytic pathogens. Furthermore, they demonstrate that the raccoon (an invasive species often living in proximity to domestic areas) and the red fox are putative reservoirs for pathogenic organisms in the Community of Madrid.

  4. Particle physics. Themes and challenges

    Energy Technology Data Exchange (ETDEWEB)

    Quigg, C. [Fermi National Accelerator Laboratory, Batavia, IL (United States)

    1996-12-31

    It is an introductory talk to the Second Rencontres du Vietnam. This lecture is devoted to seven themes that express the essence of our understanding - and our possibilities on particle physics. (K.A.) 19 refs.

  5. [Theme: Achieving Quality Laboratory Projects.[.

    Science.gov (United States)

    Shinn, Glen C.; And Others

    1983-01-01

    The theme articles present strategies for achieving quality laboratory projects in vocational agriculture. They describe fundamentals of the construction of quality projects and stress the importance of quality instruction. (JOW)

  6. Japanese situations to emerging themes

    International Nuclear Information System (INIS)

    Kubota, Ryuji

    2011-01-01

    Japanese regulatory body has audited more than ten cases of licensee's RCA since December 2007. We approve of opinions to emerging themes in 'CSNI Activity Plan', and based on achievements of these audits, Japanese situations to emerging themes are explained. As our conclusion, the more experience to identify HOF licensees have, the more problems may be solved. But as CA is difficult to measure for effectiveness, we propose to develop the outcome indicators such as the frequency of events. (author)

  7. Architectural heritage or theme park

    Directory of Open Access Journals (Sweden)

    Ignasi Solà-Morales

    1998-04-01

    Full Text Available The growing parallelism between the perception and the consumer use of theme parks and architectural heritage gives rise to a reflection about the fact that the architectural object has been turned into a museum piece, stripped  of its original value and its initial cultural substance to become images exposed to multiple gazes, thus producing what the author calis the "Theme Park effect", with consequences on protected architecture.

  8. The Mitochondrial Genome of Toxocara canis

    OpenAIRE

    Jex, Aaron R.; Waeschenbach, Andrea; Littlewood, D. Timothy J.; Hu, Min; Gasser, Robin B.

    2008-01-01

    Toxocara canis (Ascaridida: Nematoda), which parasitizes (at the adult stage) the small intestine of canids, can be transmitted to a range of other mammals, including humans, and can cause the disease toxocariasis. Despite its significance as a pathogen, the genetics, epidemiology and biology of this parasite remain poorly understood. In addition, the zoonotic potential of related species of Toxocara, such as T. cati and T. malaysiensis, is not well known. Mitochondrial DNA is known to provid...

  9. Canine vector-borne co-infections: Ehrlichia canis and Hepatozoon canis in the same host monocytes.

    Science.gov (United States)

    Baneth, Gad; Harrus, Shimon; Gal, Arnon; Aroch, Itamar

    2015-02-28

    The protozoon Hepatozoon canis and the rickettsia Ehrlichia canis are tick-borne pathogens, transmitted by Rhipicephalus sanguineus, which cause canine hepatozoonosis and canine monocytic ehrlichiosis, respectively. Co-infection of the same host monocytes with H. canis and E. canis confirmed by molecular characterization of the infecting agents and quantitative assessment of co-infected cells is described for the first time in three naturally-infected dogs. Blood smear evaluation indicated that at least 50% of the leukocytes infected with H. canis gamonts contained E. canis morulae. Co-infection of the same host cell demonstrated in this report suggests that infection with one pathogen may permit or enhance invasion or prolonged cellular survival of the other. Copyright © 2014 Elsevier B.V. All rights reserved.

  10. Prevalence and diversity of Hepatozoon canis in naturally infected dogs in Japanese islands and peninsulas.

    Science.gov (United States)

    El-Dakhly, Khaled Mohamed; Goto, Minami; Noishiki, Kaori; El-Nahass, El-Shaymaa; Hirata, Akihiro; Sakai, Hiroki; Takashima, Yasuhiro; El-Morsey, Ahmed; Yanai, Tokuma

    2013-09-01

    Canine hepatozoonosis is a worldwide protozoal disease caused by Hepatozoon canis and Hepatozoon americanum and is transmitted by ixodid ticks, Rhipicephalus and Amblyomma spp., respectively. H. canis infection is widespread in Africa, Europe, South America, and Asia, including Japan. The objective of this study was to study the distribution pattern and diversity of H. canis in naturally infected dogs in nine Japanese islands and peninsulas. Therefore, 196 hunting dogs were randomly sampled during the period from March to September 2011 and the ages and sexes were identified. Direct microscopy using Giemsa-stained blood smears revealed H. canis gametocytes in the peripheral blood of 45 (23.6%) dogs. Polymerase chain reaction (PCR) was performed on EDTA-anticoagulated blood, initially with the common primer set (B18S-F and B18S-R) amplifying the 1,665-bp portion of the 18S rRNA gene, and then with the specific primer set (HepF and HepR) amplifying about 660 bp fragments of the same gene. Based on PCR, 84 (42.9%) dogs were positive using the common primer and 81 (41.3%) were positive using the specific primer. The current investigation indicated that all screened areas, except for Sado Island and Atsumi Peninsula, were infected. Yaku Island had the highest infection rate (84.6% in males and 100.0% in females), while Ishigaki Island showed the lowest infection rates (8.3% in males and 17.7% in females). Both sexes were infected with no significant difference. However, diversity of infection among the surveyed islands and peninsulas was significantly different (P canis has previously been reported in dogs in Japan, the higher infection rate described in the current study and the diversity of infection in a wide range of islands strongly encourage prospective studies dealing with the prevention and treatment of the infection in dogs, as well as control of ticks.

  11. Generativity and Themes of Agency and Communion in Adult Autobiography.

    Science.gov (United States)

    Mansfield, Elizabeth D.; McAdams, Dan P.

    1996-01-01

    Examines differences between 70 more- and less-generative adults through a new coding system for analyzing themes of agency and communion in significant life-story scenes. The study revealed that highly generative adults express greater levels of the communion themes of dialog and care/help and greater levels of agency/communion integration. (LSR)

  12. New players in the same old game: a system level in silico study to predict type III secretion system and effector proteins in bacterial genomes reveals common themes in T3SS mediated pathogenesis.

    Science.gov (United States)

    Sadarangani, Vineet; Datta, Sunando; Arunachalam, Manonmani

    2013-07-26

    Type III secretion system (T3SS) plays an important role in virulence or symbiosis of many pathogenic or symbiotic bacteria [CHM 2:291-294, 2007; Physiology (Bethesda) 20:326-339, 2005]. T3SS acts like a tunnel between a bacterium and its host through which the bacterium injects 'effector' proteins into the latter [Nature 444:567-573, 2006; COSB 18:258-266, 2008]. The effectors spatially and temporally modify the host signalling pathways [FEMS Microbiol Rev 35:1100-1125, 2011; Cell Host Microbe5:571-579, 2009]. In spite its crucial role in host-pathogen interaction, the study of T3SS and the associated effectors has been limited to a few bacteria [Cell Microbiol 13:1858-1869, 2011; Nat Rev Microbiol 6:11-16, 2008; Mol Microbiol 80:1420-1438, 2011]. Before one set out to perform systematic experimental studies on an unknown set of bacteria it would be beneficial to identify the potential candidates by developing an in silico screening algorithm. A system level study would also be advantageous over traditional laboratory methods to extract an overriding theme for host-pathogen interaction, if any, from the vast resources of data generated by sequencing multiple bacterial genomes. We have developed an in silico protocol in which the most conserved set of T3SS proteins was used as the query against the entire bacterial database with increasingly stringent search parameters. It enabled us to identify several uncharacterized T3SS positive bacteria. We adopted a similar strategy to predict the presence of the already known effectors in the newly identified T3SS positive bacteria. The huge resources of biochemical data [FEMS Microbiol Rev 35:1100-1125, 2011; Cell Host Microbe 5:571-579, 2009; BMC Bioinformatics 7(11):S4, 2010] on the T3SS effectors enabled us to search for the common theme in T3SS mediated pathogenesis. We identified few cellular signalling networks in the host, which are manipulated by most of the T3SS containing pathogens. We went on to look for

  13. Quantity discrimination in wolves (Canis lupus

    Directory of Open Access Journals (Sweden)

    Ewelina eUtrata

    2012-11-01

    Full Text Available Quantity discrimination has been studied extensively in different non-human animal species. In the current study, we tested eleven hand-raised wolves (Canis lupus in a two-way choice task. We placed a number of food items (one to four sequentially into two opaque cans and asked the wolves to choose the larger amount. Moreover, we conducted two additional control conditions to rule out non-numerical properties of the presentation that the animals might have used to make the correct choice. Our results showed that wolves are able to make quantitative judgments at the group, but also at the individual level even when alternative strategies such as paying attention to the surface area or time and total amount are ruled out. In contrast to previous canine studies on dogs (Canis familiaris and coyotes (Canis latrans, our wolves’ performance did not improve with decreasing ratio, referred to as Weber’s law. However, further studies using larger quantities than we used in the current setup are still needed to determine whether and when wolves’ quantity discrimination conforms to Weber’s law.

  14. Development of multiplex polymerase chain reaction for detection of Ehrlichia canis, Babesia spp and Hepatozoon canis in canine blood.

    Science.gov (United States)

    Kledmanee, Kan; Suwanpakdee, Sarin; Krajangwong, Sakranmanee; Chatsiriwech, Jarin; Suksai, Parut; Suwannachat, Pongpun; Sariya, Ladawan; Buddhirongawatr, Ruangrat; Charoonrut, Phingphol; Chaichoun, Kridsada

    2009-01-01

    A multiplex polymerase chain reaction (PCR) has been developed for simultaneous detection of canine blood parasites, Ehrlichia canis, Babesia spp and Hepatozoon canis, from blood samples in a single reaction. The multiplex PCR primers were specific to E. canis VirB9, Babesia spp 16S rRNA and H. canis 16S rRNA genes. Specificity of the amplicons was confirmed by DNA sequencing. The assay was evaluated using normal canine and infected blood samples, which were detected by microscopic examination. This multiplex PCR offers scope for simultaneous detection of three important canine blood parasites and should be valuable in monitoring parasite infections in dogs and ticks.

  15. Interaction Themes in Music Therapy

    DEFF Research Database (Denmark)

    Holck, Ulla

    2006-01-01

    Based on a doctoral study, the author presents a type of music therapy interaction called ‘Interaction Themes.’ These are developed from session to session and often appear in music therapy interventions with children with severe functional limitations, especially children with autism. Although...... whose expressions are often difficult to understand. The presented article describes the characteristics and functions of Interaction Themes, compares the phenomenon with music therapy case literature and delimits it in regard to other types of music therapy interaction with this client group....... the Interaction Themes are characterised by a relatively simple and self-generated content, they have an essential function because they contain the child’s and music therapist’s joint interaction history. They make up the context within which it is possible to create meaningful interaction with a client group...

  16. Interaction themes in music therapy

    DEFF Research Database (Denmark)

    Holck, Ulla

    2004-01-01

    Based on a doctoral study, the author presents a type of music therapyinteraction called ?Interaction Themes.? These are developed fromsession to session and often appear in music therapy interventions withchildren with severe functional limitations, especially children withautism. Although...... whoseexpressions are often difficult to understand. The article describes thecharacteristics and functions of Interaction Themes, compares thephenomenon with music therapy case literature and delimits it in regardto other types of music therapy interaction with this client group. Theresults are described through...... the Interaction Themes are characterised by arelatively simple and self-generated content, they have an essentialfunction because they contain the child?s and music therapist?s jointinteraction history. They make up the context within which it ispossible to create meaningful interaction with a client group...

  17. Failure of imidocarb dipropionate to eliminate Hepatozoon canis in naturally infected dogs based on parasitological and molecular evaluation methods.

    Science.gov (United States)

    Sasanelli, Mariateresa; Paradies, Paola; Greco, Beatrice; Eyal, Osnat; Zaza, Valeria; Baneth, Gad

    2010-08-04

    The efficacy of imidocarb dipropionate for the treatment of Hepatozoon canis infection was studied in three naturally infected asymptomatic dogs followed longitudinally over 8 months. Response to treatment was followed by monitoring blood counts, parasitemia levels in blood, parasite in concentrated buffy-coat smears and by PCR. The dogs were initially treated with a low dose of 3 mg/kg imidocarb dipropionate twice a month and when parasitemia persisted after five treatments, with the regular dose of 6 mg/kg. In one dog, H. canis gamonts were no longer detectable by blood and buffy-coat microscopy after 2 months of therapy with 6 mg/kg while in the two other dogs gamonts were intermittently found in blood but persistently detectable in buffy-coat smears during the whole study period. Furthermore, combined therapy with doxycycline monohydrate administered at 10 mg/kg/day PO for 4 weeks also failed to eliminate H. canis. PCR revealed that parasite DNA was present in the blood of all dogs at all sampling dates regardless of treatment refuting the effectiveness of treatment suggested by negative blood microscopy. Detection of H. canis in buffy coat was found to be twice as sensitive than by blood smear and detection by PCR was even more sensitive revealing infection in eight samples (16% of total samples) negative by blood and buffy-coat microscopy. In conclusion, imidocarb dipropionate was not effective in eliminating H. canis from dogs treated repeatedly over 8 months. Microscopical detection is not sufficient for the evaluation of treatment response in H. canis infection and follow up by molecular techniques is recommended. Copyright 2010 Elsevier B.V. All rights reserved.

  18. Prevalence of Ehrlichia canis, Anaplasma platys, Babesia canis vogeli, Hepatozoon canis, Bartonella vinsonii berkhoffii, and Rickettsia spp. in dogs from Grenada.

    Science.gov (United States)

    Yabsley, Michael J; McKibben, John; Macpherson, Calum N; Cattan, Peggy F; Cherry, Natalie A; Hegarty, Barbara C; Breitschwerdt, Edward B; O'Connor, Tom; Chandrashekar, Ramaswamy; Paterson, Tara; Perea, Marta Lanza; Ball, Geoffrey; Friesen, Stanley; Goedde, Jill; Henderson, Brooke; Sylvester, Wayne

    2008-02-14

    To identify the tick-borne pathogens in dogs from Grenada, we conducted a serologic survey for Ehrlichia canis in 2004 (104 dogs) and a comprehensive serologic and molecular survey for a variety of tick-borne pathogens in 2006 (73 dogs). In 2004 and 2006, 44 and 32 dogs (42.3% and 43.8%) were seropositive for E. canis, respectively. In 2006, several tick-borne pathogens were identified by serology and PCR. DNA of E. canis, Anaplasma platys, Babesia canis vogeli, Hepatozoon canis, and Bartonella sp. were identified in 18 (24.7%), 14 (19.2%), 5 (7%), 5 (7%), and 1 (1.4%) dogs, respectively. Six (8.2%) dogs were seropositive for Bartonella vinsonii subsp. berkhoffii. All dogs were seronegative and PCR-negative for Rickettsia spp. Coinfection with two or three pathogens was observed in eight dogs. Partial 16S rRNA E. canis and A. platys sequences were identical to sequences in GenBank. Partial 18S rRNA gene sequences from the Grenadian H. canis were identical to each other and had one possible mismatch (ambiguous base) from H. canis detected from Spain and Brazil. Grenadian B. c. vogeli sequences were identical to B. c. vogeli from Brazil and Japan. All of the detected pathogens are transmitted, or suspected to be transmitted, by Rhipicephalus sanguineus. Results of this study indicate that dogs from Grenada are infected with multiple tick-borne pathogens; therefore, tick-borne diseases should be included as differentials for dogs exhibiting thrombocytopenia, leukopenia, fever, or lethargy. One pathogen, E. canis, is also of potential public health significance.

  19. Theme: Staying Current--Horticulture.

    Science.gov (United States)

    Shry, Carroll L., Jr.; And Others

    1986-01-01

    This theme issue on staying current in horticulture includes articles on sex equity in horticulture, Future Farmers of America, career opportunities in horticulture, staying current with your school district's needs, staying current in horticulture instruction, staying current with landscape trade associations, emphasizing the basics in vocational…

  20. BuddyPress theme development

    CERN Document Server

    Lister, Tammie

    2013-01-01

    This book is a hands-on tutorial guide to using BuddyPress.This book is great for designers and developers who are looking to learn how to develop BuddyPress themes. It's assumed that the reader has some understanding of Wordpress and is familiar with CSS and HTML.

  1. Accessing Transgenerational Themes Through Dreamwork.

    Science.gov (United States)

    Andrews, Jennifer; And Others

    1988-01-01

    Proposes use of dreamwork to evoke historical patterns or transgenerational themes. Describes new variant of dreamwork which combines aspects of both gestalt and family systems therapies. Implications of therapeutic dramatization for couple therapy are suggested. Examples are included. (Author/NB)

  2. Research in auditing: main themes

    Directory of Open Access Journals (Sweden)

    Marcelo Porte

    Full Text Available ABSTRACT The passage of the Sarbanes-Oxley Act (SOX was a turning point in auditing and in auditors practice for the academic world. Research concerning the characterization of academic production related to auditing is in its third decade. Its analysis is accomplished by means of definition of keywords, abstracts or title, and information on thematic association within the academic production itself in auditing is undisclosed. In order to revise this gap in auditing literature, this study identified the main themes in auditing and their association in post-SOX era by analyzing the content of objectives and hypothesis of 1,650 publications in Web of Science (2002-2014. The findings in this study extended those from the study by Lesage and Wechtler (2012 from 16 auditing thematic typologies to 22. The results demonstrate that the themes audit report & financial statement users, corporate governance, audit market, external audit, socio-economic data of the company, international regulation, and fraud risk & audit risk were the most addressed in the publications about auditing. Corporate governance has a broader association with the other themes in the area. Future researches may use these themes and relate them to the methodologies applied to audit studies.

  3. Experimental evidence against transmission of Hepatozoon canis by Ixodes ricinus.

    Science.gov (United States)

    Giannelli, Alessio; Ramos, Rafael Antonio Nascimento; Dantas-Torres, Filipe; Mencke, Norbert; Baneth, Gad; Otranto, Domenico

    2013-09-01

    Hepatozoon canis is among the most widespread tick-borne protozoa infecting domestic and wild carnivores. Its distribution is related to the occurrence of its major vector, the brown dog tick Rhipicephalus sanguineus. However, the role of Ixodes ricinus as a vector of H. canis has been hypothesized. In the present study, the development of H. canis was investigated in I. ricinus and R. sanguineus nymphs collected from a naturally infested dog. All I. ricinus ticks examined (n=133) were negative by cytological examination at days 20, 30, and 90 post collection, although H. canis DNA was detected in one nymph at day 20 and in 2 nymphs at day 30 post collection. On the other hand, H. canis sporogony was documented by cytology, and H. canis DNA was detected by PCR in R. sanguineus at day 30 post collection. These results indicate that H. canis sporogony does not occur in I. ricinus, but in R. sanguineus, suggesting that I. ricinus does not act as a vector of H. canis. Copyright © 2013 Elsevier GmbH. All rights reserved.

  4. Helicobacter canis bacteremia in a renal transplant patient

    NARCIS (Netherlands)

    van der Vusse, M. L.; van Son, W. J.; Ott, A.; Manson, W.

    Here we present a case report of a 41-year-old woman suffering from high fever and bacteremia due to Helicobacter canis, 11months after kidney transplantation. Identification of H.canis was achieved by 16s rDNA sequence analysis of a positive blood culture. The patient was restored fully to health

  5. Endocarditis caused by Streptococcus canis: an emerging zoonosis?

    Science.gov (United States)

    Lacave, Guillaume; Coutard, Aymeric; Troché, Gilles; Augusto, Sandrine; Pons, Stéphanie; Zuber, Benjamin; Laurent, Virginie; Amara, Marlène; Couzon, Brigitte; Bédos, Jean-Pierre; Pangon, Béatrice; Grimaldi, David

    2016-02-01

    We report a human case of infective endocarditis caused by Streptococcus canis. Identification was carried out from positive blood culture using mass spectrometry and SodA gene sequencing. S. canis related zoonotic invasive infections may have been previously underdiagnosed due to inadequate identification of group G Streptococcus species.

  6. Rhipicephalus turanicus, a new vector of Hepatozoon canis.

    Science.gov (United States)

    Giannelli, Alessio; Lia, Riccardo Paolo; Annoscia, Giada; Buonavoglia, Canio; Lorusso, Eleonora; Dantas-Torres, Filipe; Baneth, Gad; Otranto, Domenico

    2017-05-01

    The distribution of Hepatozoon canis mainly encompasses areas where its main tick vector, Rhipicephalus sanguineus sensu lato, is present. However, the detection of this pathogen in dogs, foxes and golden jackals well outside the areas inhabited by this tick species reinforced the hypothesis that additional ixodids are involved in the life cycle and transmission of this protozoon. The present study provides, for the first time, data supporting the sporogonic development of H. canis in specimens of Rhipicephalus turanicus collected from a naturally infected fox from southern Italy. The epidemiological role of R. turanicus as a vector of H. canis is discussed, along with information on the potential use of cell cultures for the experimental infection with H. canis sporozoites. The in vitro infection of canine leucocytes by sporozoites from ticks is proposed as a potential tool for future in-depth studies on the biology of H. canis.

  7. Influence of land use and meteorological factors on the spatial distribution of Toxocara canis and Toxocara cati eggs in soil in urban areas.

    Science.gov (United States)

    Gao, Xiang; Wang, Hongbin; Li, Jianxin; Qin, Hongyu; Xiao, Jianhua

    2017-01-15

    Soil which has been contaminated by Toxocara spp. eggs is considered as one of the main infection sources of Toxocariasis in animals and humans. The present study conducted a detailed investigation into the spatial patterns of Toxocara canis (T. canis) and Toxocara cati (T. cati) eggs in soil in urban area of northeastern Mainland China, and assessed the inter-relationships between meteorological factors, land use and the distribution of the Toxocara spp. eggs. Polymerase chain reaction (PCR) was used for the determination of T. canis and T. cati eggs contamination in soil samples. Between April 2014 and May 2015, 9420 soil samples were subjected to PCR examination and 7027 sheep (74.6%) were determined to be positive for T. canis and T. cati eggs. Subsequently, we evaluated the effect of land use, and meteorological factors on the spatial distribution of T. canis and T. cati eggs based on a maximum entropy model. Jackknife analysis revealed that the area of residential land, wood and grass land and precipitation may influence the occurrence of T. canis and T. cati eggs in soil. Our findings indicate that land use and meteorological factors may be important variables affecting transmission of Toxocariasis and should be taken into account in the development of future surveillance programmes for Toxocariasis. Copyright © 2016 Elsevier B.V. All rights reserved.

  8. CanisOme--The protein signatures of Canis lupus familiaris diseases.

    Science.gov (United States)

    Fernandes, Mónica; Rosa, Nuno; Esteves, Eduardo; Correia, Maria José; Arrais, Joel; Ribeiro, Paulo; Vala, Helena; Barros, Marlene

    2016-03-16

    Although the applications of Proteomics in Human Biomedicine have been explored for some time now, in animal and veterinary research, the potential of this resource has just started to be explored, especially when companion animal health is considered. In the last years, knowledge on the Canis lupus familiaris proteome has been accumulating in the literature and a resource compiling all this information and critically reviewing it was lacking. This article presents such a resource for the first time. CanisOme is a database of all proteins identified in Canis lupus familiaris tissues, either in health or in disease, annotated with information on the proteins present on the sample and on the donors. This database reunites information on 549 proteins, associated with 63 dog diseases and 33 dog breeds. Examples of how this information may be used to produce new hypothesis on disease mechanisms is presented both through the functional analysis of the proteins quantified in canine cutaneous mast cell tumors and through the study of the interactome of C. lupus familiaris and Leishmania infantum. Therefore, the usefulness of CanisOme for researchers looking for protein biomarkers in dogs and interested in a comprehensive analysis of disease mechanisms is demonstrated. This paper presents CanisOme, a database of proteomic studies with relevant protein annotation, allowing the enlightenment of disease mechanisms and the discovery of novel disease biomarkers for C. lupus familiaris. This knowledge is important not only for the improvement of animal health but also for the use of dogs as models for human health studies. Copyright © 2016 Elsevier B.V. All rights reserved.

  9. Presence of Leishmania and Brucella Species in the Golden Jackal Canis aureus in Serbia

    Directory of Open Access Journals (Sweden)

    Duško Ćirović

    2014-01-01

    Full Text Available The golden jackal Canis aureus occurs in south-eastern Europe, Asia, the Middle East, the Caucasus, and Africa. In Serbia, jackals neared extinction; however, during the last 30 years, the species started to spread quickly and to increase in number. Few studies in the past have revealed their potential role as carriers of zoonotic diseases. Animal samples were collected over a three-year period (01/2010–02/2013 from 12 sites all over Serbia. Of the tissue samples collected, spleen was chosen as the tissue to proceed; all samples were tested for Leishmania species and Brucella species by real-time PCR. Of the 216 samples collected, 15 (6.9% were positive for Leishmania species, while four (1.9% were positive for B. canis. The potential epidemiologic role of the golden jackal in carrying and dispersing zoonotic diseases in Serbia should be taken under consideration when applying surveillance monitoring schemes.

  10. Molecular confirmation of Hepatozoon canis in Mauritius.

    Science.gov (United States)

    Daskalaki, Aikaterini Alexandra; Ionică, Angela Monica; Jeetah, Keshav; Gherman, Călin Mircea; Mihalca, Andrei Daniel

    2018-01-01

    In this study, Hepatozoon species was molecularly identified and characterized for the first time on the Indian Ocean island of Mauritius. Partial sequences of the 18S rRNA gene of the Hepatozoon isolates were analysed from three naturally infected dogs. The sequences of H. canis were similar to the 18S rRNA partial sequences (JX112783, AB365071 99%) from dog blood samples from West Indies and Nigeria. Our sequences were deposited in the GenBank database. Copyright © 2017 Elsevier B.V. All rights reserved.

  11. Distance to VY Canis Majoris with VERA

    OpenAIRE

    Choi, Yoon Kyung; Hirota, Tomoya; Honma, Mareki; Kobayashi, Hideyuki; Bushimata, Takeshi; Imai, Hiroshi; Iwadate, Kenzaburo; Jike, Takaaki; Kameno, Seiji; Kameya, Osamu; Kamohara, Ryuichi; Kan-ya, Yukitoshi; Kawaguchi, Noriyuki; Kijima, Masachika; Kim, Mi Kyoung

    2008-01-01

    We report astrometric observations of H2O masers around the red supergiant VY Canis Majoris (VY CMa) carried out with VLBI Exploration of Radio Astrometry (VERA). Based on astrometric monitoring for 13 months, we successfully measured a trigonometric parallax of 0.88 +/- 0.08 mas, corresponding to a distance of 1.14 +0.11/-0.09 kpc. This is the most accurate distance to VY CMa and the first one based on an annual parallax measurement. The luminosity of VY CMa has been overestimated due to a p...

  12. A molecular and parasitological survey of Hepatozoon canis in domestic dogs in Turkey.

    Science.gov (United States)

    Aktas, Munir; Özübek, Sezayi; Altay, Kürşat; Balkaya, İbrahim; Utuk, Armagan Erdem; Kırbas, Akın; Şimsek, Sami; Dumanlı, Nazir

    2015-04-30

    In this study, asymptomatic dogs in nine provinces of Turkey were surveyed to investigate the prevalence and intensity of Hepatozoon canis infection. DNA obtained from blood samples collected from 694 domestic dogs (243 stray, 288 shelter, and 163 pets) of both genders and varying ages were evaluated by polymerase chain reaction (PCR). In addition, 285 thin blood smears prepared from these blood samples were also evaluated for microscopic examination. Direct microscopy revealed Hepatozoon gamonts in the peripheral blood of three of 285 (1.0%; 95% confidence interval (CI): 0.21-3.04) tested. Using PCR, 155 of the 694 (22.3%; 95% CI: 19.28-25.61) were found to be positive for the presence of H. canis DNA. The prevalence of infection was higher in adult dogs (26.2%; 95% CI: 22.1-30.7) than young animals (16.4%; 95% CI: 12.2-21.3). Although the prevalence determined by PCR was higher in male dogs (24.5%; 95% CI: 19.6-29.9) than in female dogs (20.8%; 95% CI: 16.9-25.1), gender differences were not significant. Pet dogs had a lower prevalence of infection (10.4%; 95% CI: 6.2-16.2) compared to stray (26.3%; 95% CI: 20.9-32.3) and shelter dogs (25.7%; 95% CI: 20.7-31.1), but no significant association between stray and shelter dogs was found for the presence of the parasite. Partial sequences of the 18S ribosomal RNA (rRNA) gene shared 99-100% similarity with the corresponding H. canis isolates. This epidemiological survey revealed a high prevalence of H. canis in dogs from several provinces in Turkey, and it suggests that the age and origin are associated with the parasite. Copyright © 2015 Elsevier B.V. All rights reserved.

  13. Spring Framework 5: Themes & Trends

    CERN Document Server

    CERN. Geneva

    2017-01-01

    Spring Framework 5.0/5.1, scheduled for release in early/late 2017, focuses on several key themes: reactive web applications based on Reactive Streams, comprehensive support for JDK 9 and HTTP/2, as well as the latest API generations in the Enterprise Java ecosystem. This talk presents the overall story in the context of wider industry trends, highlighting Spring’s unique programming model strategy.

  14. Essential themes in Personnel economics

    OpenAIRE

    Josheski, Dushko

    2014-01-01

    In this paper are presented essential themes in the subject of personnel economics. In the first part analysis has been conducted on the impact of peer pressure on workplace behaviour. Then again models for compensation structures within firms, and their influence on the utility of work by employees. In the final section of the paper the productivity spillover effect has been analyzed, and the causes of existence of spillovers and their impact on workers’ productivity

  15. Google Earth Grand Tour Themes

    Science.gov (United States)

    De Paor, D. G.; Whitmeyer, S. J.; Bentley, C.; Dordevic, M. M.

    2014-12-01

    As part of an NSF TUES Type 3 project entitled "Google Earth for Onsite and Distance Education (GEODE)," we are assembling a "Grand Tour" of locations on Earth and other terrestrial bodies that every geoscience student should know about and visit at least in virtual reality. Based on feedback from colleagues at previous meetings, we have identified nine Grand Tour themes: "Plates and Plumes," "Rocks and Regions," "Geology Through Time," "The Mapping Challenge*," "U.S. National Parks*," "The Magical Mystery Tour*," "Resources and Hazards," "Planets and Moons," and "Top of the Pops." Themes marked with an asterisk are most developed at this stage and will be demonstrated in real time. The Mapping Challenge invites students to trace geological contacts, measure bedding strike and dip and the plunge, trend, and facing of a fold. There is an advanced tool for modeling periclinal folds. The challenge is presented in a game-like format with an emphasis on puzzle-solving that will appeal to students regardless of gender. For the tour of U.S. national parks, we divided the most geologically important parks into four groups—Western Pacific, West Coast, Rockies, and East Coast. We are combining our own team's GigaPan imagery with imagery already available on the Internet. There is a great deal of imagery just waiting to be annotated for geological education purposes. The Magical Mystery Tour takes students to Google Streetview locations selected by instructors. Students are presented with questions or tasks and are given automatic feedback. Other themes are under development. Within each theme, we are crowd-sourcing contributions from colleagues and inviting colleagues to vote for or against proposed locations and student interactions. The GEODE team includes the authors and: Heather Almquist, Stephen Burgin, Cinzia Cervato, Gene Cooper, Paul Karabinos, Terry Pavlis, Jen Piatek, Bill Richards, Jeff Ryan, Ron Schott, Kristen St. John, and Barb Tewksbury.

  16. The prevalence and impact of Babesia canis and Theileria sp. in free-ranging grey wolf (Canis lupus) populations in Croatia.

    Science.gov (United States)

    Beck, Ana; Huber, Doroteja; Polkinghorne, Adam; Kurilj, Andrea Gudan; Benko, Valerija; Mrljak, Vladimir; Reljić, Slaven; Kusak, Josip; Reil, Irena; Beck, Relja

    2017-04-04

    Babesia spp. and Theileria spp. are important emerging causes of disease in dogs. Alongside these domesticated hosts, there is increasing recognition that these piroplasms can also be found in a range of wild animals with isolated reports describing the presence of these pathogen in foxes (Vulpes vulpes) and captive grey wolves (Canis lupus). The prevalence and impact of these infections in free-ranging populations of canids are unknown. To gain a better insight into the epidemiology and pathogenesis of piroplasm infections in free-ranging grey wolves, pathological and molecular investigations into captive and free-ranging grey wolves in Croatia were performed. The carcasses of 107 free-ranging wolves and one captive wolf were the subjects of post-mortem investigations and sampling for molecular studies. A blood sample from one live captured wolf for telemetric tracking was also used for molecular analysis. PCR amplification targeting the 18S RNA gene revealed that 21 of 108 free-ranging wolves and one captive animal were positive for Theileria/Babesia DNA. Subsequent sequencing of a fragment of the 18S RNA gene revealed that 7/22 animals were positive for Babesia canis while the other amplified sequence were found to be identical with corresponding 18S rDNA sequences of Theileria capreoli isolated from wild deer (15/22). Haematological and cytological analysis revealed the presence of signet-ring shaped or pear-shaped piroplasms in several animals with the overall parasite burden in all positive animals assessed to be very low. Pathological investigation of the captive animal revealed fatal septicemia as a likely outcome of hemolytic anaemia. There was little or no evidence of hemolytic disease consistent with babesiosis in other animals. Importantly, the presence of B. canis in free-ranging grey wolves has not been described before but has been reported in a single fox and domestic dogs only. That B. canis infections cause disease in dogs but have little impact

  17. The Theme of Risk Management

    Directory of Open Access Journals (Sweden)

    Chua, D. K. H.

    2014-07-01

    Full Text Available The papers in this issue of the Journal come from different industry sectors, yet there can be a common theme that ties them together. Two of the papers address explicitly the issue of risk management, while the other three may be related to it in different degrees. One of the critical factors for project success is risk identification, as determined by Chua et al. (1999. The importance of risk management cannot be overemphasized. Failure to identify crucial risk elements in a project can lead to significant project failures in terms of cost and schedule.

  18. Molecular detection of Theileria annae and Hepatozoon canis in foxes (Vulpes vulpes) in Croatia.

    Science.gov (United States)

    Dezdek, Danko; Vojta, Lea; Curković, Snjezana; Lipej, Zoran; Mihaljević, Zeljko; Cvetnić, Zeljko; Beck, Relja

    2010-09-20

    An epizootiological field study on tick-borne protozoan infections in foxes (Vulpes vulpes) was carried out in different parts of Croatia. Spleen samples of 191 carcasses of red foxes killed in sanitary hunting, were examined for the presence of hematozoa by polymerase chain reaction (PCR) and subsequent sequencing. The investigation revealed four species of hematozoa in 57 foxes (30%), namely Theileria annae, Theileria sp. 3182/05 and Hepatozoon canis. T. annae was found in 10 foxes (5%), Theileria sp. 3182/05 in a single animal (1%), H. canis in 44 (23%) and Hepatozoon sp. was detected in two foxes (1%). T. annae and H. canis were distributed through all the studied regions, while Theileria sp. 3182/05 and Hepatozoon sp. were restricted to the Zagreb and Zagorje, and Istria regions, respectively. Detection of T. annae in all regions of Croatia indicates the presence of the natural cycle of the parasite and raises the possibility of other vectors other than the proposed Ixodes hexagonus.

  19. Contamination, distribution and pathogenicity of Toxocara canis and T. cati eggs from sandpits in Tokyo, Japan.

    Science.gov (United States)

    Macuhova, K; Akao, N; Fujinami, Y; Kumagai, T; Ohta, N

    2013-09-01

    The contamination, distribution and pathogenicity of Toxocara canis and T. cati eggs in sandpits in the Tokyo metropolitan area, Japan, are described. A total of 34 sandpits were examined, 14 of which were contaminated with T. cati eggs, as assessed by the floatation method and polymerase chain reaction (PCR) analysis. Two naturally contaminated sandpits were investigated to determine the vertical and horizontal distribution of eggs, and an inverse relationship between the sand depth and number of eggs was observed. To examine the pathogenicity of the eggs, three ICR mice were inoculated with 300 eggs, which were recovered from sandpits. The mice exhibited eosinophilia in the peripheral blood and IgG antibody production in the sera after 3 weeks of infection. Most migrating larvae were recovered from carcasses, although three were found in the brains of two infected mice. These three larvae were determined to be T. canis by PCR, revealing that not only T. cati, but also T. canis eggs could be found in sandpits and, further, that eggs recovered from sandpits have the ability to invade a paratenic host.

  20. A parasitological, molecular and serological survey of Hepatozoon canis infection in dogs around the Aegean coast of Turkey.

    Science.gov (United States)

    Karagenc, Tulin Ilhan; Pasa, Serdar; Kirli, Gulcan; Hosgor, Murat; Bilgic, Huseyin Bilgin; Ozon, Yavuz Hakan; Atasoy, Abidin; Eren, Hasan

    2006-01-30

    Canine hepatozoonosis is caused by the tick-borne protozoon Hepatozoon spp. The prevalence of the infection in the Aegean coast of Turkey was investigated by examination of blood smear parasitology and polymerase chain reaction (PCR) using blood samples from 349 dogs collected from Central Aydin, Kusadasi, Selcuk, Central Manisa, Bodrum and Marmaris within the Aegean coast of Turkey. The indirect fluorescent antibody test (IFAT) for the detection of Hepatozoon canis antibodies was also used to detect the exposure rate to H. canis. PCR amplifying a 666bp fragment of 18S rRNA gene of Hepatozoon spp. was used in the epidemiological survey. The prevalence of Hepatozoon spp. infection was 10.6% by blood smear parasitology and 25.8% by PCR. IFAT revealed that 36.8% of serum samples were positive for antibodies reactive with Hepatozoon spp. The PCR products of 18S rRNA gene of Hepatozoon spp. isolated from six infected dogs, one isolate originating from each of the six different locations, were sequenced. The results of sequence analysis indicate that they are closely related to Indian and Japanese isolates of H. canis. This is the first epidemiological study on the prevalence of H. canis infection in the dog, in Turkey.

  1. Ruptured aortic aneurysm in a coyote (Canis latrans) from South Carolina.

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Debra, Lee; Schrecengost, Joshua; Kilgo, John; Ray, Scott; Miller, Karl V.

    2007-07-01

    Abstract – A radio-collared adult female coyote (Canis latrans) from South Carolina was found dead with no apparent signs of trauma or struggle. Necropsy revealed a ruptured aortic aneurysm within the thoracic cavity as well as severe heartworm infection, with paracites present in the caudal vena cava. Histologically, inflammatory cell infiltrates were frequent in the aneurysm and consisted of eosinophils, neutrophils, lymphocytes, plasma cells, and macrophages. Bacteria, fungi, and paracites were not found in the aneurysm. Death was due to exsanguinations. This represents a first report of an aneurysm in a coyote.

  2. ISO observations of far-infrared rotational emission lines of water vapor toward the supergiant star VY Canis Majoris

    OpenAIRE

    Neufeld, David A.; Feuchtgruber, Helmut; Harwit, Martin; Melnick, Gary J.

    1999-01-01

    We report the detection of numerous far-infrared emission lines of water vapor toward the supergiant star VY Canis Majoris. A 29.5 - 45 micron grating scan of VY CMa, obtained using the Short Wavelength Spectrometer (SWS) of the Infrared Space Observatory (ISO) at a spectral resolving power of approximately 2000, reveals at least 41 spectral features due to water vapor that together radiate a total luminosity ~ 25 solar luminosities. In addition to pure rotational transitions within the groun...

  3. Distance to VY Canis Majoris with VERA

    Science.gov (United States)

    Choi, Yoon Kyung; Hirota, Tomoya; Honma, Mareki; Kobayashi, Hideyuki; Bushimata, Takeshi; Imai, Hiroshi; Iwadate, Kenzaburo; Jike, Takaaki; Kameno, Seiji; Kameya, Osamu; Kamohara, Ryuichi; Kan-Ya, Yukitoshi; Kawaguchi, Noriyuki; Kijima, Masachika; Kim, Mi Kyoung; Kuji, Seisuke; Kurayama, Tomoharu; Manabe, Seiji; Maruyama, Kenta; Matsui, Makoto; Matsumoto, Naoko; Miyaji, Takeshi; Nagayama, Takumi; Nakagawa, Akiharu; Nakamura, Kayoko; Oh, Chung Sik; Omodaka, Toshihiro; Oyama, Tomoaki; Sakai, Satoshi; Sasao, Tetsuo; Sato, Katsuhisa; Sato, Mayumi; Shibata, Katsunori M.; Tamura, Yoshiaki; Tsushima, Miyuki; Yamashita, Kazuyoshi

    2008-10-01

    We report on astrometric observations of H2O masers around the red supergiant VY Canis Majoris carried out with VLBI Exploration of Radio Astrometry (VERA). Based on astrometric monitoring for 13 months, we successfully measured a trigonometric parallax of 0.88±0.08 mas, corresponding to a distance of 1.14+0.11-0.09kpc. This is the most accurate determined distance to VY CMa and the first one based on an annual parallax measurement. The luminosity of VY CMa has been overestimated due to a previously accepted distance. With our result, we re-estimated the luminosity of VY CMa to be (3±0.5) × 105Lodot using the bolometric flux integrated over optical and IR wavelengths. This improved luminosity value makes the location of VY CMa on the Hertzsprung-Russell (HR) diagram much closer to the theoretically allowable zone (i.e. the left side of the Hayashi track) than previous ones, though the uncertainty in the effective temperature of the stellar surface still does not permit us to make a final conclusion.

  4. Trophic cascades linking wolves (Canis lupus), coyotes (Canis latrans), and small mammals

    Science.gov (United States)

    Miller, B.J.; Harlow, H.J.; Harlow, T.S.; Biggins, D.; Ripple, W.J.

    2012-01-01

    When large carnivores are extirpated from ecosystems that evolved with apex predators, these systems can change at the herbivore and plant trophic levels. Such changes across trophic levels are called cascading effects and they are very important to conservation. Studies on the effects of reintroduced wolves in Yellowstone National Park have examined the interaction pathway of wolves (Canis lupus L., 1758) to ungulates to plants. This study examines the interaction effects of wolves to coyotes to rodents (reversing mesopredator release in the absence of wolves). Coyotes (Canis latrans Say, 1823) generally avoided areas near a wolf den. However, when in the proximity of a den, they used woody habitats (pine or sage) compared with herbaceous habitats (grass or forb or sedge)- when they were away from the wolf den. Our data suggested a significant increase in rodent numbers, particularly voles (genus Microtus Schrank, 1798), during the 3-year study on plots that were within 3 km of the wolf den, but we did not detect a significant change in rodent numbers over time for more distant plots. Predation by coyotes may have depressed numbers of small mammals in areas away from the wolf den. These factors indicate a top-down effect by wolves on coyotes and subsequently on the rodents of the area. Restoration of wolves could be a powerful tool for regulating predation at lower trophic levels.

  5. Angiostrongylus vasorum in 20 cani della provincia di Chieti, Italia

    Directory of Open Access Journals (Sweden)

    Daniela Morelli

    2011-01-01

    Full Text Available A seguito di un caso di Angiostrongylus vasorum, diagnosticato all’inizio del 2008 nella provincia di Chieti, è stata organizzata una ricerca parassitologica al fine di indagare la presenza del parassita nei cani nella stessa area. Da gennaio a settembre 2008 sono stati esaminati 178 cani, 56 carcasse e 122 campioni di feci. Nelle carcasse sono stati ricercati i parassiti adulti nel ventricolo destro e nell’arteria polmonare e le forme larvali in tessuti di organi interni e cervello. Nelle feci è stata ricercata la forma larvale L1 con tre metodiche diagnostiche utilizzate correntemente per la ricerca di endoparassiti e larve di strongili broncopolmonari. Sono stati diagnosticati 20 casi (8,9% con identificazione di parassiti adulti in 5 cani e larve L1 in altri 15 soggetti. L’esame anatomopatologico delle carcasse dei cani con nematodi adulti ha evidenziato polmonite, pleurite, schiuma rossastra in trachea, versamento di liquido sieroemorragico in cavità toracica e ingrossamento di linfonodi medinici e meseraici. L’esame istologico dei tessuti ha evidenziato quadri gravi e sovrapponibili con lesioni da localizzazione dei parassiti in reni, linfonodi e cervello. Il numero cospicuo di casi riscontrati ha reso indispensabile considerare l’angiostrongilosi nelle diagnosi differenziali degli esami clinici e autoptici di cani della provincia di Chieti (Italia e dei territori confinanti.

  6. The Internet Marketing of Disney Theme Parks

    Directory of Open Access Journals (Sweden)

    Carol J. Auster

    2013-03-01

    Full Text Available The purpose of this study was to analyze the portrayal of gender and race in the images on the official Disney websites used to market five theme parks: the Disneyland Parks in California, Paris, Tokyo, and Hong Kong, and the Magic Kingdom in Florida. This is important because of the growth of e-commerce, Disney’s global influence, and the potential impact on those who view the images. The 452 images that had Disney human characters, human-like characters, animals, cast members, or guests were coded for gender. The main gender hypothesis, that the percentage of male-dominated images would exceed the percentage of female-dominated images, was tested using gender disparity values, which measured the gap between the percentage of male-dominated and female-dominated images. The hypothesis tended to be supported overall, and for most of the resorts (e.g., Florida, lands (e.g., Adventureland, and activities (attractions, entertainment, dining for human characters, human-like characters, animals, and cast members, but not for guests. Furthermore, the hypotheses that gender disparity values would be highest for images of animals and lowest for images of guests was supported for all five resorts, six of eight lands, and all three activities. Additional analysis also revealed the preponderance of same-sex pairings in parent–child combinations in the images. With regard to race, while the images of some theme parks displayed more racial diversity among their guests than others, in some images, individuals of different races were shown interacting whereas in others they were not. Explanations for these findings and suggestions for future research are discussed.

  7. Themes of Death and Violence in Lullabies of Different Countries.

    Science.gov (United States)

    Achte, Kalle; And Others

    1990-01-01

    Lullabies are often divided into songs describing death or funeral of child and songs which threaten child with violence if he/she does not sleep. Survey of lullabies from 26 countries and various ethnic groups revealed that threat songs were more common than lullabies with death themes. Latter were frequent in Finno-Ugris and Slavic cultures, not…

  8. Sarcocystis canis associated hepatitis in a Steller sea lion (Eumetopias jubatus) from Alaska.

    Science.gov (United States)

    Welsh, Trista; Burek-Huntington, Kathy; Savage, Kate; Rosenthal, Benjamin; Dubey, J P

    2014-04-01

    Sarcocystis canis infection was associated with hepatitis in a Steller sea lion (Eumetopias jubatus). Intrahepatocellular protozoal schizonts were among areas of necrosis and inflammation. The parasite was genetically identical to S. canis and is the first report in a Steller sea lion, indicating another intermediate host species for S. canis.

  9. Isolation of viable neospora caninum from brains of wild gray wolves (canis lupus)

    Science.gov (United States)

    Neospora caninum is a common cause of abortion in cattle worldwide. Canids, including the dog and the dingo (Canis familiaris), the coyote (Canis latrans), and the gray wolf (Canis lupus) are its definitive hosts, but also can act as intermediate hosts by harbor tissue stages of the parasite that ca...

  10. Environmental Protection Theme at Discourses of Corporative Social Responsibility

    Directory of Open Access Journals (Sweden)

    Alfredo Rodrigues Leite da Silva

    2009-01-01

    Full Text Available This paper views and discusses discourses on social responsibility in organizations and their use of the environmental theme. We suppose that strategies are used to disseminate some discourses concerning these matters. The ambiguities of themes within organizations point to a fragmented discourse (Fineman, 1996, revealing practices of openness and dissimulation. The theoretical discussion starts with the theme of social responsibility, confronting it with an environmental theme and discusses discourses with ambiguities of organizational practice stemming from two themes. At the end, a case study of Antena completes the discussion. Data was collected with documental research and semi-structured interviews. We made use of Discourse Analysis methodology (Fiorin, 1989. In conclusion, the concern with social responsibility and its environmental thematic lie within the organization. It is found in the discourse and actions at a high administration level including managers and a high number of technical workers. The silence about the limits of this responsibility is fulfilled by a technical workers group that reveals dissimulation when openness menaces some objectives.

  11. Mycoplasma canis and urogenital disease in dogs in Norway

    DEFF Research Database (Denmark)

    L'Abee-Lund, T.M.; Heiene, R.; Friis, N.F.

    2003-01-01

    Mycoplasmas identified as Mycoplasma canis were isolated from nine dogs with clinical signs of urogenital disease in Norway over a period of 20 months. Some of the dogs had been treated unsuccessfully with antibiotics, and three were euthanased as a result of severe persistent disease. Seven...... of the dogs had a urinary tract infection, one had chronic purulent epididymitis and one had chronic prostatitis. Overt haematuria was frequently observed among the dogs with cystitis. M canis was isolated in pure culture from seven of the dogs and in mixed culture from the other two. In three cases...... the mycoplasma was cultivated only from urinary sediment, and it was typically obtained in smaller numbers than would be considered indicative of a urinary tract infection. In contrast with most mycoplasmas, the M canis isolated from all the dogs grew on ordinary blood agar plates used for routine...

  12. Book review, Amati cani, José Jorge Letria

    Directory of Open Access Journals (Sweden)

    Manuel Graziani

    2008-03-01

    Full Text Available Con Amati cani ci discostiamo per una volta dalle pubblicazioni a carattere scientifico, per dare il giusto risalto ad un’interessante raccolta di narrativa che esplora il rapporto tra l'uomo e il suo miglior amico. José Jorge Latria, noto soprattutto per essere un esponente di spicco della canzone politica portoghese e per le sue opere poetiche, teatrali e di letteratura per ragazzi, nello scrivere questo libro compie un vero e proprio atto d’amore verso i cani, con il preciso intento di costringere i lettori ad eliminare dal proprio vocabolario il gratuito modo di dire ‘mondo cane’. L’Autore delinea brevi ritratti di cani che, da Argo in poi, hanno accompagnato da amici veri i loro celebri padroni nella buona e nella cattiva sorte: racconta cioè la storia di quei cani che non sono sprofondati nella voragine dell’oblio perchè i loro padroni hanno raggiunto la celebrità nel mondo della letteratura, della politica, del cinema, delle scienze o della musica. Con a fianco un amico fedele come un cane, la vita ha avuto un sapore diverso per Ernest Hemingway, Isaac Newton, Sigmund Freud, Buster Keaton, Marilyn Monroe, Pablo Picasso, John Steinbeck, Lord Byron, Tim Burton e altri ancora, tutti personaggi che sono presenti in questo libro grazie ai cani che hanno condiviso con loro la vita e le memorie. La lettura di Amati cani dà piacere poichè in ognuno di questi racconti batte, affettuoso e delicato, il cuore di un cane; ma dà anche un pò da pensare in quanto celebra in maniera molto tenera l’amore, la fedeltà e la solidarietà tra l’uomo e il suo speciale amico a quattro zampe.

  13. Survey of Ehrlichia canis, Babesia spp. and Hepatozoon spp. in dogs from a semiarid region of Brazil

    Directory of Open Access Journals (Sweden)

    Tereza Emmanuelle de Farias Rotondano

    Full Text Available This study assessed the occurrence of Ehrlichia spp., Babesia spp. and Hepatozoon spp. infections in 100 tick-harboring dogs from a semiarid region of the State of Paraíba, Northeastern Brazil. Blood samples and ticks were collected from the animals, and a questionnaire was submitted to dog owners to obtain general data. Blood samples were used to perform hemogram, direct blood smear and immunological and molecular hemoparasite detection. The 1,151 ticks collected were identified as Rhipicephalus sanguineus; direct smears revealed E. canis-like morulae in the monocytes of 4% (4/100 of the non-vaccinated female dogs, and 34% and 25% of the dogs tested positive for Ehrlichia canis by indirect immunofluorescence assay (IFA and polymerase chain reaction (PCR, respectively. Blood smear examination revealed Babesia-suggestive merozoites in the erythrocytes of 2% (2/100 of the animals. Babesia vogeli was detected by PCR in ten animals (10% and was correlated with young age (p = 0.007 and thrombocytopenia (p = 0.01. None of the animals showed Hepatozoon spp. positivity. These results indicate that E. canis is the main tick-borne canine pathogen in the study area and provide the first report of B. vogeli infection in dogs from Paraiba State.

  14. Survey of Ehrlichia canis, Babesia spp. and Hepatozoon spp. in dogs from a semiarid region of Brazil.

    Science.gov (United States)

    Rotondano, Tereza Emmanuelle de Farias; Almeida, Herta Karyanne Araújo; Krawczak, Felipe da Silva; Santana, Vanessa Lira; Vidal, Ivana Fernandes; Labruna, Marcelo Bahia; de Azevedo, Sérgio Santos; Ade lmeida, Alzira Maria Paiva; de Melo, Marcia Almeida

    2015-01-01

    This study assessed the occurrence of Ehrlichia spp., Babesia spp. and Hepatozoon spp. infections in 100 tick-harboring dogs from a semiarid region of the State of Paraíba, Northeastern Brazil. Blood samples and ticks were collected from the animals, and a questionnaire was submitted to dog owners to obtain general data. Blood samples were used to perform hemogram, direct blood smear and immunological and molecular hemoparasite detection. The 1,151 ticks collected were identified as Rhipicephalus sanguineus; direct smears revealed E. canis-like morulae in the monocytes of 4% (4/100) of the non-vaccinated female dogs, and 34% and 25% of the dogs tested positive for Ehrlichia canis by indirect immunofluorescence assay (IFA) and polymerase chain reaction (PCR), respectively. Blood smear examination revealed Babesia-suggestive merozoites in the erythrocytes of 2% (2/100) of the animals. Babesia vogeli was detected by PCR in ten animals (10%) and was correlated with young age (p = 0.007) and thrombocytopenia (p = 0.01). None of the animals showed Hepatozoon spp. positivity. These results indicate that E. canis is the main tick-borne canine pathogen in the study area and provide the first report of B. vogeli infection in dogs from Paraiba State.

  15. Case report of canine co-infection with Leishmania infantum and Ehrlichia canis

    Directory of Open Access Journals (Sweden)

    Stefanovska Jovana

    2011-05-01

    Full Text Available Canine leishmaniasis (CanL due to Leishmania infantum and canine monocytic ehrilichiosis (CME due to Ehrlichia canis are common diseases with zoonotic potential in the Mediterranean area. Their prevalence in R. Macedonia as a neighboring Mediterranean county is expected. In both diseases similar clinical symptoms can be manifested in dogs such as: lethargy, anorexia, weight loss, epistaxis, fever, pale mucous membranes, enlarged lymph nodes, splenomegaly, ocular signs. This case report present an atypical case of 11 year old female Samoyed with starting single clinical symptom epistaxys. Initial diagnostic procedures revealed the presence only of CanL, which was diagnosed using indirect immunofluorescence method and ELISA. First laboratory findings showed normal hematological and renal profiles. Dog was put on a treatment with Allopurinol (20mg/kg, p/o for at least 9 months. Termination of the therapy after 6 months brought a numerous clinical symptoms involving weakness, dehydration, pale mucous membranes lost pupilar reflex, uremic breath and biochemical parameters revealed a renal failure. Using a commercial ELISA kit Ehrlichia canis as a co infection was diagnosed. Most probably the second infectious agent was induced in the past 6 months, causing more severe pathological effects than CanL infection alone.

  16. Multiorgan fungal infection caused by Microsporum canis in a green iguana (Iguana iguana).

    Science.gov (United States)

    Chung, Tae-Ho; Kim, Eun-Ju; Choi, Ul Soo

    2014-06-01

    Multiple organ invasion by keratinophilic fungi in the green iguana (Iguana iguana) has not been previously reported. In this case, a 1-yr-old female green iguana presented with a nodular, darkly discolored skin lesion surrounded by necrosis in the right ventral abdominal region. A cytologic examination of the fine needle aspiration of the lesion revealed an exuberant proliferation of fibroblasts, macrophages, and multinucleated cells along with frequent filamentous structures consistent with hyphal elements. The necropsy revealed diffuse infiltration of the liver, lung, and cardiac apex with white nodules. A histopathologic examination of the lesions also confirmed a fungal infection associated with granulomatous inflammation. Rapid polymerase chain reaction (PCR) analysis of the chitin synthase 1 gene was conducted for rapid direct detection, and inter-simple sequence repeat fingerprinting was conducted to classify the infectious origin. The PCR analysis definitively demonstrated representative Microsporum canis fungus. The present report is the first case of disseminated M. canis infection with multiorgan involvement in a green iguana.

  17. A PCR-based epidemiological survey of Hepatozoon canis in dogs in Nigeria.

    Science.gov (United States)

    Sasaki, Mizuki; Omobowale, Olutayo; Ohta, Kaisaku; Tozuka, Morito; Matsuu, Aya; Hirata, Haruyuki; Nottidge, Helen Oyebukola; Ikadai, Hiromi; Oyamada, Takashi

    2008-07-01

    The prevalence of Hepatozoon canis infections in dogs in Nigeria was surveyed using molecular methods. DNA was extracted from blood samples obtained from 400 dogs. A primer set that amplified the Babesia canis 18S rRNA gene, which has high similarity to the H. canis 18S rRNA gene, was used for the PCR. As a result, samples from 81 dogs (20.3%) produced 757 bp bands, which differed from the 698 bp band that corresponded to B. canis infection. The sequence of the PCR products of 10 samples were determined, all of which corresponded with the H. canis sequence.

  18. Exploring Multicultural Themes through Picture Books.

    Science.gov (United States)

    Farris, Pamela J.

    1995-01-01

    Advocates inclusion of multicultural picture books in social studies instruction to offer different outlooks and visions in a short format. Describes selection of picture books with multicultural themes and those that represent various cultures, gender equity, and religious themes. Suggests that picture books may help students develop better…

  19. Hepatozoon canis infecting dogs in the State of Espírito Santo, southeastern Brazil.

    Science.gov (United States)

    Spolidorio, Mariana G; Labruna, Marcelo B; Zago, Augusto M; Donatele, Dirlei M; Caliari, Késia M; Yoshinari, Natalino H

    2009-08-26

    From May 2007 to March 2008, blood samples were collected from 92 healthy dogs living in 21 households (17 farms in rural area, and 4 homes in urban area) in 6 counties of the State of Espírito Santo, southeastern Brazil. In addition, ticks were collected from these dogs. A mean of 4.4+/-3.0 dogs (range: 1-12) were sampled per household; 78 and 14 dogs were from rural and urban areas, respectively. Polymerase chain reaction (PCR) designed to amplify fragments of the 18S rDNA gene of Babesia spp or Hepatozoon spp revealed amplicons of the expected size in 20 (21.7%) dogs for Babesia, and 54 (58.7%) dogs for Hepatozoon. All Babesia-positive dogs were also Hepatozoon-positive. Among the 21 households, 15 (71.4%) from 3 counties had at least one PCR-positive dog, including 13 farms (rural area) and 2 homes (urban area). A total of 40 PCR products from the Hepatozoon-PCR, and 19 products from the Babesia-PCR were submitted to DNA sequencing. All generated sequences from Hepatozoon-PCR were identical to each other, and to corresponding 18S rDNA sequences of H. canis in GenBank. Surprisingly, all generated sequences from the Babesia PCR were also identical to corresponding 18S rDNA sequences of H. canis in GenBank. Dogs from 10 rural and 2 urban households were found infested by Rhipicephalus sanguineus ticks. Immature of Amblyomma cajennense ticks were found in dogs from only 4 rural households (also infested by R. sanguineus). All but one household with R. sanguineus-infested dogs had at least one Hepatozoon-infected dog. Statistical analysis showed that the presence of ticks (i.e. R. sanguineus) infesting dogs in the households was significantly (P0.05) between PCR-positive dogs and urban or rural households. Canine hepatozoonosis caused by H. canis is a high frequent infection in Espírito Santo, Brazil, where it is possibly vectored by R. sanguineus. Since all infected dogs were found apparently healthy, the pathogenicity of H. canis for dogs in Espírito Santo is

  20. Hepatozoon canis infection in Slovakia: imported or autochthonous?

    Science.gov (United States)

    Majláthová, Viktória; Hurníková, Zuzana; Majláth, Igor; Petko, Branislav

    2007-01-01

    Tissue samples from nine red foxes (four samples of striated muscle tissue and five samples of heart tissue) that originated from the Michalovce district (Slovakia), an area with endemic occurrence of canine babesiosis were examined by PCR method using primers amplifying a fragment of the 18S rRNA spanning the V4 region of Babesia and Theileria. An unexpected determination of 450 bp DNA fragment of Hepatozoon canis was found in four samples. Partial sequences of the 18S rRNA gene from the H. canis showed 100% similarity with the sequence from Brasil isolate of H. canis from a pampas fox (Pseudalopex gymnocercus) (AY471615) as well as from a fox in Spain (AY150067) and from a dog in Brazil (AY864677). In the present study, we report the first PCR detection of Hepatozoon canis in a naturally infected red fox from Slovakia, a Rhipicephalus sanguineus-free region. We assume that the infection was spread by infected R. sanguineus that might have been brought to Slovakia by travelers, by golden jackals, or by foxes migrating because of expansion of golden jackals and environmental and climate changes.

  1. Infection of dogs with Babesia canis in Gwagwalada metropolis of ...

    African Journals Online (AJOL)

    Epidemiological investigation was carried out to determine the prevalence of infection with Babesia canis in dogs in Gwagwalada metropolis of the Federal Capital Territory, Abuja Nigeria, from November 2013 to January 2014. Blood samples were collected from 101 dogs and examined for the parasite. Data obtained were ...

  2. Serodetection of Ehrlichia canis amongst dogs in central Namibia

    Directory of Open Access Journals (Sweden)

    Rutendo Manyarara

    2015-06-01

    Full Text Available Ehrlichia canis is a major pathogen in dogs throughout Africa, yet it has not been reported in Namibia. The aim of this study was to determine the seroprevalence of canine ehrlichiosis in central Namibia using the ImmunoComb assay (Biogal, Galed Laboratories. The study included 76 dogs that presented to the Rhino Park Veterinary Clinic in the north-western suburb of Khomasdal, Windhoek, Namibia, as well as 30 stray dogs from the Windhoek branch of the Society for the Prevention of Cruelty to Animals. Of the 106 dogs tested, 53.8% were seropositive at titres > 1:80. Dogs that presented with symptoms of E. canis infection had a significantly higher seroprevalence (86.6% compared with apparently healthy dogs (41.6% (P = 0.00. Location of habitation was significant (P < 0.017, with a high percentage of dogs exposed to E. canis living in the northern or north-western part of Windhoek. As the first study to serologically establish E. canis as a major pathogen in dogs in central Namibia, it is notable that the highest proportion of seropositive dogs came from low-income areas. Further investigation is necessary to describe the ecology of this important tick-borne pathogen of companion animals in Namibia.

  3. Infection of dogs with Babesia canis in Gwagwalada metropolis of ...

    African Journals Online (AJOL)

    ADEYEYE

    2014-10-30

    Oct 30, 2014 ... determine the prevalence of Babesia canis and the correlation of infection with age, sex, breed, types of management and presence .... Table 3: Breed distribution of Babesia infection in dogs in Gwagwalada Area Council, FCT. Breed ... the management style of the dogs and infection with. Babesia. Table 5 ...

  4. MRI findings of spinal visceral larva migrans of Toxocara canis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, In Ho, E-mail: leeinho1974@hanmail.ne [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Department of Radiology, Chungnam National University Hospital, 33 Munhwa-ro, Jung-gu, Daejeon 301-721 (Korea, Republic of); Kim, Sung Tae, E-mail: st7.kim@hotmail.co [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Oh, Dae Kun, E-mail: odk6464@nate.co [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Kim, Hyung-Jin, E-mail: hyungkim@skku.ed [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Kim, Keon Ha, E-mail: somatom@skku.ed [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Jeon, Pyoung, E-mail: drpjeon@gmail.co [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of); Byun, Hong Sik, E-mail: byun5474@skku.ed [Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-Gu, Seoul 135-710 (Korea, Republic of)

    2010-08-15

    Purpose: The purpose of this study is to investigate the MRI findings of visceral larva migrans (VLS) of Toxocara canis in spinal cord. Materials and methods: We retrospectively reviewed spinal MRI findings in eight patients with serologically proven Toxocara canis between 2005 and 2008. We evaluated the location, length, extent and migration of the lesion, MR signal intensity (SI), enhancement pattern, and swelling of the spinal cord. We evaluated clinical features including presenting symptoms and signs and treatment response. Results: Total 8 patients (M = 8; age range 36-79 years) were included. The lesions were located in the cervical or thoracic spinal cord in all patients. All lesions showed high SI and minimal or mild swelling of involved spinal cord on T2WI and focal nodular enhancement on posterior or posterolateral segment of spinal cord. The length of involved lesion was relatively short in most patients. There was a migration of lesion in one patient. In spite of albendazole or steroid treatment, neurological symptoms or signs were not significantly improved in all patients. Conclusion: Although all lesions show non-specific imaging findings like non-tumorous myelopathy mimicking transverse myelitis, single lesion, focal nodular enhancement on posterior or posterolateral segment of spinal cord, relatively short segmental involvement and migration of lesion may be characteristic findings of spinal VLM of Toxocara canis. In addition, the reluctant response to the treatment may be characteristic of spinal VLM of Toxocara canis.

  5. MRI findings of spinal visceral larva migrans of Toxocara canis

    International Nuclear Information System (INIS)

    Lee, In Ho; Kim, Sung Tae; Oh, Dae Kun; Kim, Hyung-Jin; Kim, Keon Ha; Jeon, Pyoung; Byun, Hong Sik

    2010-01-01

    Purpose: The purpose of this study is to investigate the MRI findings of visceral larva migrans (VLS) of Toxocara canis in spinal cord. Materials and methods: We retrospectively reviewed spinal MRI findings in eight patients with serologically proven Toxocara canis between 2005 and 2008. We evaluated the location, length, extent and migration of the lesion, MR signal intensity (SI), enhancement pattern, and swelling of the spinal cord. We evaluated clinical features including presenting symptoms and signs and treatment response. Results: Total 8 patients (M = 8; age range 36-79 years) were included. The lesions were located in the cervical or thoracic spinal cord in all patients. All lesions showed high SI and minimal or mild swelling of involved spinal cord on T2WI and focal nodular enhancement on posterior or posterolateral segment of spinal cord. The length of involved lesion was relatively short in most patients. There was a migration of lesion in one patient. In spite of albendazole or steroid treatment, neurological symptoms or signs were not significantly improved in all patients. Conclusion: Although all lesions show non-specific imaging findings like non-tumorous myelopathy mimicking transverse myelitis, single lesion, focal nodular enhancement on posterior or posterolateral segment of spinal cord, relatively short segmental involvement and migration of lesion may be characteristic findings of spinal VLM of Toxocara canis. In addition, the reluctant response to the treatment may be characteristic of spinal VLM of Toxocara canis.

  6. The parasite assemblage in the spiral intestine of the shark Mustelus canis.

    Science.gov (United States)

    Cislo, P R; Caira, J N

    1993-12-01

    The parasite assemblage in the 8 chambers of the spiral intestine of 49 specimens of the shark Mustelus canis collected from Long Island Sound and off the coast of Virginia was investigated. Assemblages within host individuals were composed of up to 3 of 4 species of cestodes: the trypanorhynch species Prochristianella tumidula and Lacistorhynchus tenuis and the hooked tetraphyllidean species Calliobothrium verticillatum and Calliobothrium lintoni. Each individual shark hosted 1-3 (mean = 2.17) tapeworm species and 1-166 (mean = 34.3) tapeworm individuals. The assemblage consisted of 2 core species, 1 secondary species, and 1 satellite species. Analysis of variance (ANOVA) revealed significant differences among the areas of the 8 intestinal chambers. ANOVAs of worm density among chambers revealed that each of the 4 species exhibited site specificity within the spiral intestine. Least significant difference analysis revealed that each of the species, except C. verticillatum, was usually found in the anterior 3 chambers. Calliobothrium verticillatum was more commonly found in the middle region of the organ, centered around chamber 4. Horn's information index indicated that L. tenuis and C. lintoni had the greatest amount of overlap within the spiral intestine and the congeners C. lintoni and C. verticillatum had the least amount of overlap. No evidence of interaction among the species in this assemblage was found. In cases where observations could be made, neither cestode total length nor location within the spiral intestine appeared to be affected by the presence of other individuals or species respectively. There was some evidence of underutilized space; the posteriormost chamber was vacant in all 49 sharks examined and 91.8% of sharks had at least 2 vacant chambers. Linear regression revealed no relationship between shark total length and either total number of worms or total number of individuals of each of the 4 species of cestodes. The chi-square test revealed

  7. The effects of similarity of theme and instantiation in analogical reasoning.

    Science.gov (United States)

    Yanowitz, K L

    2001-01-01

    The influence of 2 types of structural similarity on analogical reasoning was examined. The theme of a story is a structural component that constrains other relationships in the story. Another structural component is the way in which the theme is implemented. Participants received pairs of stories that varied in the similarity of these two components. Participants in Experiment 1 judged stories containing similar themes as more analogous than stories with dissimilar themes. Likewise, stories with similar implementations were judged as more analogous than stories with dissimilar implementations. Experiment 2 revealed a similar pattern when participants had the opportunity to transfer information from source to target stories. Greater transfer was seen for stories with similar themes than for stories with dissimilar themes. Greater transfer was also seen for stories with similar implementations of different themes than for stories with different implementations.

  8. Pathology of dogs in Campo Grande, MS, Brazil naturally co-infected with Leishmania infantum and Ehrlichia canis

    Directory of Open Access Journals (Sweden)

    Gisele Braziliano Andrade

    2014-12-01

    Full Text Available Different parasites that commonly occur concomitantly can influence one another, sometimes with unpredictable effects. We evaluated pathological aspects of dogs naturally co-infected with Leishmania infantum and Ehrlichia canis. The health status of the dogs was investigated based on histopathological, hematological and biochemical analyses of 21 animals infected solely with L. infantum and 22 dogs co- infected with L. infantum and E. canis. The skin of both groups showed chronic, predominantly lymphohistioplasmacytic inflammatory reaction. The plasmacytosis in the lymphoid tissues was likely related with the hypergammaglobulinemia detected in all the dogs. The disorganization of extracellular matrix found in the reticular dermis of the inguinal region and ear, characterized by the substitution of thick collagen fibers for thin fibers, was attributed to the degree of inflammatory reaction, irrespective of the presence of parasites. In addition, the histopathological analysis revealed that twice as many dogs in the co-infected group presented Leishmania amastigotes in the ear skin than those infected solely with Leishmania, increasing the possibility of becoming infected through sand fly vectors. Our findings highlight the fact that the health of dogs infected concomitantly with L. infantum and E. canis is severely compromised due to their high levels of total plasma protein, globulins, alkaline phosphatase and creatine kinase, and severe anemia.

  9. Isolation of Aureimonas altamirensis, a Brucella canis-like bacterium, from an edematous canine testicle.

    Science.gov (United States)

    Reilly, Thomas J; Calcutt, Michael J; Wennerdahl, Laura A; Williams, Fred; Evans, Tim J; Ganjam, Irene K; Bowman, Jesse W; Fales, William H

    2014-11-01

    Microbiological and histological analysis of a sample from a swollen testicle of a 2-year-old Border Collie dog revealed a mixed infection of the fungus Blastomyces dermatitidis and the Gram-negative bacterium Aureimonas altamirensis. When subjected to an automated microbial identification system, the latter isolate was provisionally identified as Psychrobacter phenylpyruvicus, but the organism shared several biochemical features with Brucella canis and exhibited agglutination, albeit weakly, with anti-B. canis antiserum. Unequivocal identification of the organism was only achieved by 16S ribosomal RNA gene sequencing, ultimately establishing the identity as A. altamirensis. Since its first description in 2006, this organism has been isolated infrequently from human clinical samples, but, to the authors' knowledge, has not been reported from a veterinary clinical sample. While of unknown clinical significance with respect to the pathology observed for the polymicrobial infection described herein, it highlights the critical importance to unambiguously identify the microbe for diagnostic, epidemiological, infection control, and public health purposes. © 2014 The Author(s).

  10. The genome of obligately intracellular Ehrlichia canis revealsthemes of complex membrane structure and immune evasion strategies

    Energy Technology Data Exchange (ETDEWEB)

    Mavromatis, K.; Kuyler Doyle, C.; Lykidis, A.; Ivanova, N.; Francino, P.; Chain, P.; Shin, M.; Malfatti, S.; Larimer, F.; Copeland,A.; Detter, J.C.; Land, M.; Richardson, P.M.; Yu, X.J.; Walker, D.H.; McBride, J.W.; Kyrpides, N.C.

    2005-09-01

    Ehrlichia canis, a small obligately intracellular, tick-transmitted, gram-negative, a-proteobacterium is the primary etiologic agent of globally distributed canine monocytic ehrlichiosis. Complete genome sequencing revealed that the E. canis genome consists of a single circular chromosome of 1,315,030 bp predicted to encode 925 proteins, 40 stable RNA species, and 17 putative pseudogenes, and a substantial proportion of non-coding sequence (27 percent). Interesting genome features include a large set of proteins with transmembrane helices and/or signal sequences, and a unique serine-threonine bias associated with the potential for O-glycosylation that was prominent in proteins associated with pathogen-host interactions. Furthermore, two paralogous protein families associated with immune evasion were identified, one of which contains poly G:C tracts, suggesting that they may play a role in phase variation and facilitation of persistent infections. Proteins associated with pathogen-host interactions were identified including a small group of proteins (12) with tandem repeats and another with eukaryotic-like ankyrin domains (7).

  11. Investigation of tick vectors of Hepatozoon canis in Brazil.

    Science.gov (United States)

    Demoner, Larissa de Castro; Rubini, Adriano Stefani; Paduan, Karina dos Santos; Metzger, Betina; de Paula Antunes, João Marcelo Azevedo; Martins, Thiago Fenandes; Mathias, Maria Izabel Camargo; O'Dwyer, Lucia Helena

    2013-12-01

    Hepatozoon canis is a common apicomplexan parasite of dogs. In Brazil, in addition to Rhipicephalus sanguineus, Amblyomma ovale, Amblyomma cajennense, and Rhipicephalus (Boophilus) microplus have been suggested to act as vectors. The present study aimed to evaluate, under controlled conditions, the acquisition of H. canis by A. ovale, R. sanguineus, and A. cajennense after feeding on naturally infected dogs. Cytological and histophatological examinations were performed to recover oocysts and other sporogonic stages of the protozoan from the experimentally infected nymphs and adults. None of the R. sanguineus (n=30) or A. cajennense nymphs (n=15) that were dissected after feeding on H. canis naturally infected dogs became infected by the hemoparasite. Likewise, none of the R. sanguineus (n=165) and A. cajennense (n=114) adult ticks that were fed as nymphs on dogs demonstrated infection. Additionally, A. cajennense adult ticks were incapable of acquiring the infection, since no parasite was found in 62 adults that fed on H. canis-infected dogs. With regard to A. ovale ticks, 2 different infestations were carried out. Firstly, a dog with naturally occurring hepatozoonosis was infested with A. ovale adults originating from Rondônia, Brazil. Ticks fed to full engorgement. A total of 31 adults was collected from the dog and dissected on the third day after natural detachment. Oocysts were detected in 13 (42%) of the ticks. The second experimental infestation was carried out using adult ticks originating from São Paulo, Brazil. Surprisingly, of the 103 dissected ticks, only one (1%) contained oocysts in the hemocoel. No other sporogonic stage was found. Results indicate that different strains of A. ovale ticks may exist in Brazil with different susceptibilities to pathogens. Furthermore, it is possible that R. sanguineus and A. cajennense have little or no importance in the transmission of H. canis in rural areas of Brazil. Copyright © 2013 Elsevier GmbH. All rights

  12. Life cycle of Hepatozoon canis (Apicomplexa: Adeleorina: Hepatozoidae) in the tick Rhipicephalus sanguineus and domestic dog (Canis familiaris).

    Science.gov (United States)

    Baneth, Gad; Samish, Michael; Shkap, Varda

    2007-04-01

    The life cycle of the apicomplexan protozoon Hepatozoon canis in its natural hosts Rhipicephalus sanguineus (tick) and Canis familiaris (domestic dog) was studied in an experimental infection. Tick nymphs were fed on a naturally infected dog, or they were infected by percutaneous injection of blood. Dogs were inoculated by ingestion of adult ticks containing mature oocysts. Gamonts were in syzygy 24 hr after percutaneous injection of ticks. Early oocysts were detected 96 hr after nymph repletion, and mature oocysts in adult ticks were infective to dogs 40 days postmolt. Merogony was detected in dog bone marrow from 13 days postinoculation (PI) and included meronts containing 20-30 micromerozoites, and a second type with 2-4 macromerozoites. Monozoic cysts were observed in the spleen in conjunction with merogony. Gamontogony with infection of leukocytes by micromerozoites occurred from 26 days PI, and gamont parasitemia, which completed the life cycle, was detected 28 days PI. The length of the life cycle from nymphal attachment to parasitemia in dogs was 81 days. Increased body temperatures were evident from 16 to 27 days PI and paralleled the time of intensive bone marrow merogony. Skeletal pain and recumbency were manifested in 2 dogs. This study further elucidates the life cycle of H. canis and provides a sequential morphologic description of H. canis merogony, gamontogony, and sporogony.

  13. On the emergence theme of physics

    CERN Document Server

    Carroll, Robert

    2010-01-01

    The book surveys mathematical relations between classical and quantum mechanics, gravity, time and thermodynamics from various points of view and many sources (with appropriate attribution). The emergence theme is developed with an emphasis on the meaning via mathematics. A background theme of Bohemian mechanics and connections to the quantum equivalence principle of Matone et al. is also developed in great detail. Some original work relating the quantum potential and Ricci flow is also included.

  14. Future Research Themes in Supply Chain Management

    DEFF Research Database (Denmark)

    Wieland, Andreas

    2016-01-01

    Guest post on research results published in the article "Mapping the Landscape of Future Research Themes in Supply Chain Management" by Andreas Wieland, Robert Handfield and Christian Durach ( Journal of Business Logistics (2016). Vol. 37, no. 3, pp. 205-212).......Guest post on research results published in the article "Mapping the Landscape of Future Research Themes in Supply Chain Management" by Andreas Wieland, Robert Handfield and Christian Durach ( Journal of Business Logistics (2016). Vol. 37, no. 3, pp. 205-212)....

  15. Suicide note themes and suicide prevention.

    Science.gov (United States)

    Foster, Tom

    2003-01-01

    The aim was to determine if suicide note themes might inform suicide prevention strategies. The themes of 42 suicide notes from the Northern Ireland Suicide Study (major psychological autopsy study) were examined. The commonest themes were "apology/shame" (74%), "love for those left behind" (60%), "life too much to bear" (48%), "instructions regarding practical affairs post-mortem" (36%), "hopelessness/nothing to live for" (21%) and "advice for those left behind" (21%). Notes of suicides with major unipolar depression were more likely than notes of suicides without major unipolar depression to contain the themes "instructions regarding practical affairs post-mortem" (67% versus 19%, p = 0.005) and "hopelessness/nothing to live for" (40% versus 11%, p = 0.049). Notes of suicides with a previous history of deliberate self-harm were less likely than notes of suicides without a history of deliberate self-harm to contain the theme "apology/shame" (58% versus 87%, p = 0.04). Notes of elderly suicides were more likely than non-elderly notes to contain the theme "burden to others" (40% versus 3%, p = 0.03). The fact that three quarters of suicide notes contained the theme "apology/shame" suggests that the deceased may have welcomed alternative solutions for their predicaments. Scrutiny of suicide note themes in the light of previous research findings suggests that cognitive therapy techniques, especially problem solving, may have an important role to play in suicide prevention and that potential major unipolar depressive (possibly less impulsive) suicides, in particular, may provide fertile ground for therapeutic intervention (physical and psychological). Ideally all primary care doctors and mental health professionals working with (potentially) suicidal people should be familiar with basic cognitive therapy techniques, especially problem solving skills training.

  16. Interpreting hegemonic themes in the electronic forró

    Directory of Open Access Journals (Sweden)

    Jean Henrique Costa

    2014-03-01

    Full Text Available Current investigation analyzes hegemonic themes in the music of electronic forró (Brazilian dance. The critical theory of Theodor W. Adorno and Cultural Studies revealed: a the main thematic patterns and clichés of the genre; b the meanings of these thematic patterns; c and some hypothetical implications for the consumer. The above implies certain relations of domination reinforced in and by the consumption of the electronic forró.

  17. Anti-Hepatozoon canis serum antibodies and gamonts in naturally-occurring canine monocytic ehrlichiosis.

    Science.gov (United States)

    Mylonakis, Mathios E; Leontides, Leonidas; Gonen, Liat; Billinis, Charalambos; Koutinas, Alexander F; Baneth, Gad

    2005-05-15

    The prevalence of IgG antibodies to Hepatozoon canis and the presence of gamonts in the blood and hemolymphatic tissues were studied in dogs with canine monocytic ehrlichiosis (CME) caused by Ehrlichia canis. Both pathogens are transmitted by the tick Rhipicephalus sanguineus. Forty-five out of 69 (65.2%) dogs with CME were seropositive to H. canis by an enzyme-linked immunosorbent assay (ELISA). Intra-neutrophilic gamonts of H. canis were found in 2 out of 69 dogs (2.9%) comprising 4.5% of the seropositive dogs. The present study indicated that the prevalence of antibodies to H. canis was high among dogs with CME in an area where both infections are endemic. However, previous exposure to H. canis was not found as an important contributor to clinical or clinicopathologic abnormalities found in dogs with CME.

  18. [A case of the myelitis due to Toxocara canis infection complicated with cervical spondylosis].

    Science.gov (United States)

    Mitsuhashi, Yutaka; Naitou, Kentarou; Yamauchi, Shigeru; Naruse, Hirotsune; Matsuoka, Yoshimi; Nakamura-Uchiyama, Fukumi; Hiromatsu, Kenji

    2006-11-01

    A 59-year-old male had suffered from numbness of the hands for 7 months. With a diagnosis of cervical spondylosis, he had been treated conservatively at a nearby clinic. After he fell off his bicycle, the numbness intensified and limb weakness developed. Cervical MRI revealed spinal cord compression at the C4/5 and C5/6 levels due to cervical spondylosis with prominent edema in the spinal cord spreading from the C4 to C6 level. The edema was very serious. Therefore, we suspected that the traumatic spinal injury underlying the cervical spondylosis was complicated by another disease. Cervical spinal angiography revealed no apparent vascular disorder. Contrast enhanced MRI showed a small enhanced area in the spinal cord at the C5 level. Because of the rapid progression of gait disturbance, expansive laminoplasty was performed without further examination. Although remarkable amelioration of the symptoms was seen just after the surgery, the symptoms worsened again about 1 month later. The patient's clinical history was reconsidered, revealing that he likes raw bovine liver. Serological examination, because of suspicion of parasitic infection showed elevated titers of anti-Toxocara canis antibody in the serum and cerebrospinal fluid. Administration of albendazole improved the clinical symptoms, and normalized the serological and MRI findings. Myelitis due to T canis infection is a rare disease. For an early and accurate diagnosis, it is important to be fully aware of this disease and to include detailed information on food preferences and pet-keeping in the process of compiling a clinical history.

  19. Universal design characteristic on themed streets

    Science.gov (United States)

    Harsritanto, Bangun IR; Indriastjario; Wijayanti

    2017-12-01

    People around the world can access the streets to fulfil their daily activities regardless of their gender, age, and abilities. The streetscape is an urban public space which is built to facilitate the basic needs of people as social being. The themed street is an urban streetscape designed and built in detail with a theme or special purpose in an of urban development process. Universal design facilitates the full range of human diversity as physical appearance, perception, cognitive abilities, sizes, and shapes. By designing for the diversity, the specialized streets become more functional and user-friendly. The purpose of this study is to examine several design characteristics of themed streets in several countries from three different continents using universal design principles for giving proper directions to develop more user-friendly streets. Literature review and case study were used as research methods. The literature review was extracted and compiled from manuscripts, streetscape design books, and from universal design principles. Furthermore, the constructed theory were used to examine the case studies of themed streets. The findings indicated that themed streets’ character design were strongly influenced by local cultural aspect even though the basic guidelines were universal design principles; the resumed design direction can be suggested universal along with the richness of local aspects.

  20. Description of dogs naturally infected with Hepatozoon canis in the Aegean region of Turkey

    OpenAIRE

    PAŞA, Serdar; KIRAL, Funda; KARAGENÇ, Tülin; ATASOY, Abidin; SEYREK, Kamil

    2009-01-01

    Clinical and laboratory findings recorded in 10 dogs naturally infected with Hepatozoon canis in the Aegean region of Turkey were reported. The diagnosis was made by finding H. canis gamonts within leucocytes in Giemsa-stained blood smears. H. canis parasitaemia level was calculated manually by counting 500 neutrophils in blood smears. Parasitaemia varied from 1% to 23% of the circulating neutrophils. Anorexia, fever, depression, weight loss, and lymphadenopathy are the main clinical signs in...

  1. Molecular cloning and characterization of arginine kinase gene of Toxocara canis

    OpenAIRE

    Sahu, Shivani; Samanta, S.; Harish, D. R.; Sudhakar, N. R.; Raina, O. K.; Shantaveer, S. B.; Madhu, D. N.; Kumar, Ashok

    2013-01-01

    Toxocara canis is an important gastrointestinal nematode of dogs and also a causative agent of visceral larva migrans in humans. Arginine kinase (AK) gene is one of the important biomolecule of phosphagen kinase of T. canis which is emerging as an exciting novel diagnostic target in toxocarosis. The present study was carried out to clone and characterize AK gene of T. canis for future utilization as a diagnostic molecule. Total RNA was extracted from intact adult worms and reverse transcripti...

  2. MASTICATORY MUSCLE MYOSITIS IN A GRAY WOLF (CANIS LUPUS).

    Science.gov (United States)

    Kent, Marc; Glass, Eric N; Castro, Fernando A; Miller, Andrew D; de Lahunta, Alexander

    2017-03-01

    A 10-yr-old male, neutered gray wolf ( Canis lupus ) was presented for atrophy of the temporalis and masseter muscles. Clinical signs and magnetic resonance imaging were consistent with a myopathy. Positive serology for antibody titers directed against Type 2M myofibers, and the observation of a mixed mononuclear inflammatory cell infiltrate along with eosinophils and neutrophils within the temporalis muscle, were diagnostic for masticatory muscle myositis. Importantly, protozoal myositis was excluded based on other clinicopathologic data. The case highlights the potential for immune-mediated polymyositis in canids other than the domesticated dog ( Canis lupus familaris). Additionally, awareness of a diet in which raw meat is used should prompt a thorough investigation for an underlying infectious myositis in the gray wolf.

  3. Giardia and Cryptosporidium species and genotypes in coyotes (Canis latrans).

    Science.gov (United States)

    Trout, James M; Santín, Mónica; Fayer, Ronald

    2006-06-01

    Feces and duodenal scrapings were collected from 22 coyotes (Canis latrans) killed in managed hunts in northeastern Pennsylvania. Polymerase chain reaction (PCR) methods were used to detect Giardia and Cryptosporidium spp. PCR-amplified fragments of Giardia and Cryptosporidium spp. SSU-rRNA genes were subjected to DNA sequence analysis for species/genotype determination. Seven coyotes (32%) were positive for G. duodenalis: three assemblage C, three assemblage D, and one assemblage B. Six coyotes (27%) were positive for Cryptosporidium spp. One isolate shared 99.7% homology with C. muris, whereas five others (23%) shared 100% homology with C. canis, coyote genotype. This is the first report on multiple genotypes of Giardia spp. in coyotes and on the prevalence of Cryptosporidium spp. genotypes in coyotes.

  4. Haematopathological Changes in Dogs Affected with Ehrlichia Canis in Lesvos

    Directory of Open Access Journals (Sweden)

    Geromichalou A.

    2017-06-01

    Full Text Available Canine Ehrlichiosis is an important immunosuppressive tick borne disease in dogs. The geographical distribution and transmission is mostly related with Rhipicephalus sanguineus which acts as a vector. There is no predilection of age or sex; all breeds may be infected with Canine Monocytic Ehrlichiosis (CME. The primary targets are monocytic cells. Platelet disorders and serum protein alterations are the principal hematological and biochemical consequences of infections. Clinical signs are almost non-specific. A definitive diagnosis requires: visualization of morulae within monocytes on cytology, detection of serum antibodies with E. canis, the IFA test, or the PCR. The objective of this study was to present information about haematological and biochemical tests of E. canis infected dogs in Lesvos island in Greece, which is an endemic area.

  5. SCM, the M Protein of Streptococcus canis Binds Immunoglobulin G.

    Science.gov (United States)

    Bergmann, Simone; Eichhorn, Inga; Kohler, Thomas P; Hammerschmidt, Sven; Goldmann, Oliver; Rohde, Manfred; Fulde, Marcus

    2017-01-01

    The M protein of Streptococcus canis (SCM) is a virulence factor and serves as a surface-associated receptor with a particular affinity for mini-plasminogen, a cleavage product of the broad-spectrum serine protease plasmin. Here, we report that SCM has an additional high-affinity immunoglobulin G (IgG) binding activity. The ability of a particular S. canis isolate to bind to IgG significantly correlates with a scm -positive phenotype, suggesting a dominant role of SCM as an IgG receptor. Subsequent heterologous expression of SCM in non-IgG binding S. gordonii and Western Blot analysis with purified recombinant SCM proteins confirmed its IgG receptor function. As expected for a zoonotic agent, the SCM-IgG interaction is species-unspecific, with a particular affinity of SCM for IgGs derived from human, cats, dogs, horses, mice, and rabbits, but not from cows and goats. Similar to other streptococcal IgG-binding proteins, the interaction between SCM and IgG occurs via the conserved Fc domain and is, therefore, non-opsonic. Interestingly, the interaction between SCM and IgG-Fc on the bacterial surface specifically prevents opsonization by C1q, which might constitute another anti-phagocytic mechanism of SCM. Extensive binding analyses with a variety of different truncated SCM fragments defined a region of 52 amino acids located in the central part of the mature SCM protein which is important for IgG binding. This binding region is highly conserved among SCM proteins derived from different S. canis isolates but differs significantly from IgG-Fc receptors of S. pyogenes and S. dysgalactiae sub. equisimilis , respectively. In summary, we present an additional role of SCM in the pathogen-host interaction of S. canis . The detailed analysis of the SCM-IgG interaction should contribute to a better understanding of the complex roles of M proteins in streptococcal pathogenesis.

  6. Large dust grains in the wind of VY Canis Majoris

    OpenAIRE

    Scicluna, P.; Siebenmorgen, R.; Wesson, R.; Blommaert, J. A. D. L; Kasper, M.; Voshchinnikov, N. V.; Wolf, S.

    2015-01-01

    Massive stars live short lives, losing large amounts of mass through their stellar wind. Their mass is a key factor determining how and when they explode as supernovae, enriching the interstellar medium with heavy elements and dust. During the red supergiant phase, mass-loss rates increase prodigiously, but the driving mechanism has proven elusive. Here we present high-contrast optical polarimetric-imaging observations of the extreme red supergiant VY Canis Majoris and its clumpy, dusty, mass...

  7. Denning behaviour of non-gravid wolves, Canis lupus

    Science.gov (United States)

    Mech, L.D.; Phillips, M.K.; Smith, D.W.; Kreeger, T.J.

    1996-01-01

    Wild wolves (Canis lupus) that had produced pups in earlier years but were not currently pregnant, and ovariectomized captive wolves, dug dens during and after the whelping season even though they produced no pups. These observations suggest that den digging is not a function of pregnancy or of ovarian estrogen or progesterone. We hypothesize that increasing prolactin in spring elicits or mediates den-digging behavior.

  8. Model-Driven Theme/UML

    Science.gov (United States)

    Carton, Andrew; Driver, Cormac; Jackson, Andrew; Clarke, Siobhán

    Theme/UML is an existing approach to aspect-oriented modelling that supports the modularisation and composition of concerns, including crosscutting ones, in design. To date, its lack of integration with model-driven engineering (MDE) techniques has limited its benefits across the development lifecycle. Here, we describe our work on facilitating the use of Theme/UML as part of an MDE process. We have developed a transformation tool that adopts model-driven architecture (MDA) standards. It defines a concern composition mechanism, implemented as a model transformation, to support the enhanced modularisation features of Theme/UML. We evaluate our approach by applying it to the development of mobile, context-aware applications-an application area characterised by many non-functional requirements that manifest themselves as crosscutting concerns.

  9. Molecular and serological detection of Ehrlichia canis and Babesia vogeli in dogs in Colombia.

    Science.gov (United States)

    Vargas-Hernández, G; André, M R; Faria, J L M; Munhoz, T D; Hernandez-Rodriguez, M; Machado, R Z; Tinucci-Costa, M

    2012-05-25

    Ehrlichiosis and babesiosis are tick-borne diseases, caused mainly by Ehrlichia canis and Babesia canis, respectively, with a worldwide occurrence in dogs, whose main vector is the brown-dog tick, Rhipicephalus sanguineus. The present work aimed to detect the presence of E. canis and Babesia sp. in 91 dog blood samples in Colombia, by molecular and serological techniques. We also performed sequence alignment to indicate the identity of the parasite species infecting these animals. The present work shows the first molecular detection of E. canis and B. vogeli in dogs from Colombia. Immunoglobulin-G (IgG) antibodies to E. canis and Babesia vogeli were found in 75 (82.4%) and 47 (51.6%) sampled dogs, respectively. Thirty-seven (40.6%) and 5 (5.5%) dogs were positive in PCR for E. canis and Babesia sp., respectively. After sequencing, amplicons showed 99% of identity with isolates of E. canis and B. vogeli. The phylogenetic trees based on 16S rRNA-Anaplasmataceae sequences and 18S rRNA-piroplasmid sequences supported the identity of the found E. canis and B. vogeli DNAs, respectively. The present work shows the first molecular detection of E. canis and B. vogeli in dogs in Colombia. Copyright © 2011 Elsevier B.V. All rights reserved.

  10. Didelphis albiventris naturally infected with Hepatozoon canis in southeastern Brazil.

    Science.gov (United States)

    da Silva, Maria Regina Lucas; Fornazari, Felipe; Demoner, Larissa de Castro; Teixeira, Carlos Roberto; Langoni, Helio; O'Dwyer, Lucia Helena

    2017-10-01

    Hepatozoon species are vector-borne pathogens that infect domestic and wild animals. Marsupials of the species Didelphis albiventris are adapted to urban and peri-urban areas and act as reservoir hosts for several parasites. The present study evaluated the occurrence of infection by Hepatozoon species in synantropic D. albiventris from Botucatu, São Paulo, Brazil. Blood samples and ectoparasites from 19 D. albiventris were collected from urban and peri-urban areas. Hepatozoon spp. detection was performed by microscopy and molecular analysis. One opossum was positive for Hepatozoon spp. in microscopy analysis and PCR, while another animal was positive only in PCR. The obtained sequences were 100% identical to Hepatozoon canis. Six species of ticks and two species of fleas were detected on D. albiventris. This is the first report of H. canis in synantropic D. albiventris. In Brazil, H. canis transmission among dog populations is not well established, which highlights the importance of investigating the role that opossums might play in the epidemiology of this protozoan. Copyright © 2017 Elsevier GmbH. All rights reserved.

  11. Molecular characterization of Hepatozoon canis in dogs from Colombia.

    Science.gov (United States)

    Vargas-Hernandez, Giovanni; André, Marcos R; Munhoz, Thiago D; Faria, Joice M L; Machado, Rosangela Z; Tinucci-Costa, Mirela

    2012-01-01

    Hepatozoonosis is a tick-borne disease whose transmission to dogs occurs by ingestion of oocysts infected ticks or feeding on preys infested by infected ticks. Until now, there is no previous report of molecular characterization of Hepatozoon sp. in dogs from Colombia. EDTA blood samples were collected from 91 dogs from central-western region of Colombia (Bogotá, Bucaramanga, and Villavicencio cities) and submitted to 18S rRNA Hepatozoon sp. PCR and blood smears confection. Phylogenetic analysis was used to access the identity of Hepatozoon species found in sampled dogs. From 91 sampled dogs, 29 (31.8%) were positive to Hepatozoon sp. (25 dogs were only positive in PCR, 1 was positive only in blood smears, and 3 were positive in both blood smears and PCR). After sequencing, the found Hepatozoon sp. DNA showed 100% of identity with Hepatozoon canis DNA isolates. The phylogenetic tree supported the identity of the found Hepatozoon sp. DNA, showing that the isolates from Colombia were placed in the same clade than other H. canis isolates from Venezuela, Spain, and Taiwan. This is the first molecular detection of H. canis in dogs from Colombia.

  12. Comparative study of Microsporum canis isolates by DNA fingerprinting.

    Science.gov (United States)

    Shafiee, Shabnam; Khosravi, Ali Reza; Ashrafi Tamai, Iradj

    2014-08-01

    Microsporum canis is a zoophilic fungus and it is an important agent of dermatophytosis. Cats act as important reservoirs. Clinically, it is too difficult to differentiate dermatophytosis caused by various species, also this fungus loses its morphological characteristics easily because of subculture; so using of rapid and accurate laboratory techniques for identifying the dermatophytes is important, therefore, RAPD-PCR was applied for the differentiation of the isolates. In this study, 10 M. canis isolates were detected in cats, dog, human, fox and rabbit at the Mycology Research Center, Faculty of Veterinary Medicine, University of Tehran. For running the RAPD-PCR, PCR set system and three random primers OPU 15, OPU 13 and OPA 04 were used. Then phylogenetic tree and similarity coefficient table were drawn. The results showed that there were some common bands between M. canis isolates. There were some specific bands for each isolates, as well. Our study showed, despite the typical morphology of the whole isolates, they were placed in different branches in molecular typing. © 2014 Blackwell Verlag GmbH.

  13. Seroprevalence of Ehrlichia canis infection in stray dogs from Serbia

    Directory of Open Access Journals (Sweden)

    Nataša Bogićević

    2017-03-01

    Full Text Available Canine Monocytic Ehrlichiosis is a zoonotic bacterial disease with worldwide distribution. With regards to the population of stray dogs, the disease is facilitated due to their lifestyle and the lack of anti-parasitic protection. The aim of this study was to provide serological data on the presence of a specific Ehrlichia canis IgG antibodies in stray dogs, originating from 7 municipalities in Serbia. During the period from April 2013 to June 2014, 217 canine sera were submitted to the laboratory of the Department of Infectious Diseases of Animals and Bees, Faculty of Veterinary Medicine in Belgrade. An immunofluorescent antibody test (IFAT was performed to detect antibodies to Ehrlichia canis (cut off, 1:50. Seropositive dogs were found in 5 out of 7 counties with a seroprevalence varying from 3.57% to 20% and an overall seroprevalence of 11.06% (24/217. There was no statistically significant difference between the prevalence of infection and the host age or gender. Results showed that stray dogs contribute to maintaining and spreading of Ehrlichia canis in Serbia. Due to the close relationship between people and dogs, it is of great importance to constantly monitor and improve prevention of this disease.

  14. Effect of Saprotrophic Soil Fungi on Toxocara canis Eggs

    Directory of Open Access Journals (Sweden)

    Ciarmela, M. L.

    2010-01-01

    Full Text Available The purpose of this work was to assess the ovicidal activity of Chrysosporium merdarium, Trichoderma harzianum, Fusarium oxysporum, F. moniliforme and F. sulphureum isolated from public areas in the city of La Plata, Argentina, on Toxocara canis eggs in vitro. Each species were cultured on water agar 2% with a suspension of immature-stage T. canis eggs. At 4, 7, 14, 21 and 28 days post-culture, they were observed by light and scanning electron microscopy. One hundred eggs were evaluated and scored according to Lỳsek’s ovicidal effect classification. These procedures were repeated three times which each fungal species. Chrysosporium merdarium and F. oxysporum showed very high ovicidal activity, F. sulphureum high ovicidal activity, F. moniliforme intermediate ovicidal activity and T. harzianum did not affect the viability of T. canis eggs. Taking into account the effects on human and animal health and the environment, the species with better prospects for studying its potential use as biological control was F. sulphureum.

  15. ENCUESTA EXPLORATORIA DE INFECCION POR Brucella canis EN PERROS DE

    Directory of Open Access Journals (Sweden)

    Ana Pardo D

    2009-08-01

    Full Text Available Objetivo. Determinar la presencia de anticuerpos a B. canis en perros domésticos y callejeros del municipio de Villavicencio, Colombia. Materiales y métodos. Se utilizó la prueba de aglutinación rápida en placa con antígeno menos mucoide (M- en 201 muestras de suero. En dos animales seropositivos se realizó intento de aislamiento por hemocultivo en medio selectivo para Brucella (oxoid®. En un animal seropositivo, con crecimiento bacteriano con características morfológicas sugestivas a B. canis se realizó histopatología de testículo, bazo e hígado. Resultados. La seropositividad general fue de 1.49% y correspondió a tres caninos machos, dos de los cuales presentaron signos clínicos de epididimitis y orquitis (unilateral. El cultivo y la histopatología no fueron concluyentes para el diagnostico de B. canis. Conclusiones. La seropositividad fue baja y sugiere que la población estudiada no ha estado en contacto con la bacteria. La presencia de reactores puede estar asociado con falsos positivos. El no aislamiento de la bacteria no indica que la enfermedad no exista por lo que se requiere de nuevos estudios.

  16. An Interferometric Spectral-Line and Imaging Survey of VY Canis Majoris in the 345 GHz Band

    OpenAIRE

    Kaminski, T.; Gottlieb, C. A.; Young, K. H.; Menten, K. M.; Patel, N. A.

    2013-01-01

    A spectral line survey of the oxygen-rich red supergiant VY Canis Majoris was made between 279 and 355 GHz with the Submillimeter Array. Two hundred twenty three spectral features from 19 molecules (not counting isotopic species of some of them) were observed, including the rotational spectra of TiO, TiO2, and AlCl for the first time in this source. The parameters and an atlas of all spectral features is presented. Observations of each line with a synthesized beam of ~0.9 arcsec, reveal the c...

  17. Recent Themes in Social Networking Service Research.

    Directory of Open Access Journals (Sweden)

    John S Liu

    Full Text Available The body of literature addressing the phenomenon related to social networking services (SNSs has grown rather fast recently. Through a systematic and quantitative approach, this study identifies the recent SNS research themes, which are the issues discussed by a coherent and growing subset of this literature. A set of academic articles retrieved from the Web of Science database is used as the basis for uncovering the recent themes. We begin the analysis by constructing a citation network which is further separated into groups after applying a widely used clustering method. The resulting clusters all consist of articles coherent in citation relationships. This study suggests eight fast growing recent themes. They span widely encompassing politics, romantic relationships, public relations, journalism, and health. Among them, four focus their issues largely on Twitter, three on Facebook, and one generally on both. While discussions on traditional issues in SNSs such as personality, motivations, self-disclosure, narcissism, etc. continue to lead the pack, the proliferation of the highlighted recent themes in the near future is very likely to happen.

  18. Themes of Suicide in the Kalevala.

    Science.gov (United States)

    Achte, Kalle; And Others

    1988-01-01

    The Kalevala, Finland's national epic, is a crucial element of Finnish cultural identity and important to Finnish culture. Violence, death, and suicide are often repeated themes in Finnish folklore. The Kalevala provides insight into past attitudes toward death. Traditions passed through generations have influenced people's attitudes toward…

  19. FY16 Strategic Themes White Paper.

    Energy Technology Data Exchange (ETDEWEB)

    Leland, Robert W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-03-01

    The Science and Technology (S&T) Division 1000 Strategic Plan includes the Themes, Goals, and Actions for FY16. S&T will continue to support the Labs Strategic plan, Mission Areas and Program Management Units by focusing on four strategic themes that align with the targeted needs of the Labs. The themes presented in this plan are Mission Engagement, Bold Outcomes, Collaborative Environment, and the Safety Imperative. Collectively they emphasize diverse, collaborative teams and a self-reliant culture of safety that will deliver on our promise of exceptional service in the national interest like never before. Mission Engagement focuses on increasing collaboration at all levels but with emphasis at the strategic level with mission efforts across the labs. Bold Outcomes seeks to increase the ability to take thoughtful risks with the goal of achieving transformative breakthroughs more frequently. Collaborative environment strives for a self-aware, collaborative working environment that bridges the many cultures of Sandia. Finally, Safety Imperative aims to minimize the risk of serious injury and to continuously strengthen the safety culture. Each of these themes is accompanied by a brief vision statement, several goals, and planned actions to support those goals throughout FY16 and leading into FY17.

  20. Recent Themes in Social Networking Service Research.

    Science.gov (United States)

    Liu, John S; Ho, Mei Hsiu-Ching; Lu, Louis Y Y

    2017-01-01

    The body of literature addressing the phenomenon related to social networking services (SNSs) has grown rather fast recently. Through a systematic and quantitative approach, this study identifies the recent SNS research themes, which are the issues discussed by a coherent and growing subset of this literature. A set of academic articles retrieved from the Web of Science database is used as the basis for uncovering the recent themes. We begin the analysis by constructing a citation network which is further separated into groups after applying a widely used clustering method. The resulting clusters all consist of articles coherent in citation relationships. This study suggests eight fast growing recent themes. They span widely encompassing politics, romantic relationships, public relations, journalism, and health. Among them, four focus their issues largely on Twitter, three on Facebook, and one generally on both. While discussions on traditional issues in SNSs such as personality, motivations, self-disclosure, narcissism, etc. continue to lead the pack, the proliferation of the highlighted recent themes in the near future is very likely to happen.

  1. Endangered Species & Biodiversity: A Classroom Project & Theme

    Science.gov (United States)

    Lauro, Brook

    2012-01-01

    Students discover the factors contributing to species losses worldwide by conducting a project about endangered species as a component of a larger classroom theme of biodiversity. Groups conduct research using online endangered- species databases and present results to the class using PowerPoint. Students will improve computer research abilities…

  2. Ten themes of viscous liquid dynamics

    DEFF Research Database (Denmark)

    Dyre, J. C.

    2007-01-01

    Ten ‘themes' of viscous liquid physics are discussed with a focus on how they point to a general description of equilibrium viscous liquid dynamics (i.e., fluctuations) at a given temperature. This description is based on standard time-dependent Ginzburg-Landau equations for the density fields...

  3. Cross-infection between cats and cows: Origin and control of Streptococcus canis mastitis in a dairy herd

    OpenAIRE

    Tikofsky, L L; Zadoks, R N

    2005-01-01

    Group G streptococci in animals usually belong to the species Streptococcus canis and are most commonly found in dogs and cats. Occasionally, Strep. canis is detected in milk from dairy cows. An outbreak of Strep. canis mastitis in a dairy herd is described. Based on results from bacterial culture and ribotyping, a cat with chronic sinusitis was the most likely source of the outbreak. Subsequent cow-to-cow transmission of Strep. canis was facilitated by poor udder health management, including...

  4. 76 FR 81665 - Endangered and Threatened Wildlife and Plants; Revising the Listing of the Gray Wolf (Canis lupus...

    Science.gov (United States)

    2011-12-28

    ... Wolf (Canis lupus) in the Western Great Lakes; Final rule #0;#0;Federal Register / Vol. 76, No. 249... (Canis lupus) in the Western Great Lakes AGENCY: Fish and Wildlife Service, Interior. ACTION: Final rule... Minnesota population of gray wolves (Canis lupus) to conform to current statutory and policy requirements...

  5. A critical reflection on current control of Toxocara canis in household dogs

    NARCIS (Netherlands)

    Nijsse, E.R.|info:eu-repo/dai/nl/314103198

    2016-01-01

    Toxocara canis is a roundworm that is common worldwide and also in Dutch household dogs. Adult stages of T. canis can be present in the small intestines of dogs where they produce large numbers of eggs that are shed in the environment (patent infection). Because very young dogs and humans can

  6. Recurrent patent infections with Toxocara canis in household dogs older than six months

    NARCIS (Netherlands)

    Nijsse, Rolf; Mughini-Gras, Lapo; Wagenaar, Jaap A.; Ploeger, Harm W.

    2016-01-01

    Background: To reduce environmental contamination with Toxocara canis eggs, the current general advice is to deworm all dogs older than six months on average four times a year. However, only a small proportion of non-juvenile household dogs actually shed T. canis eggs, and some dogs shed eggs

  7. Recurrent patent infections with Toxocara canis in household dogs older than six months : a prospective study

    NARCIS (Netherlands)

    Nijsse, Rolf; Mughini-Gras, Lapo; Wagenaar, Jaap A; Ploeger, Harm W

    2016-01-01

    BACKGROUND: To reduce environmental contamination with Toxocara canis eggs, the current general advice is to deworm all dogs older than six months on average four times a year. However, only a small proportion of non-juvenile household dogs actually shed T. canis eggs, and some dogs shed eggs more

  8. Primers for polymerase chain reaction to detect genomic DNA of Toxocara canis and T. cati.

    Science.gov (United States)

    Wu, Z; Nagano, I; Xu, D; Takahashi, Y

    1997-03-01

    Primers for polymerase chain reaction to amplify genomic DNA of both Toxocara canis and T. cati were constructed by adapting cloning and sequencing random amplified polymorphic DNA. The primers are expected to detect eggs and/or larvae of T. canis and T. cati, both of which are known to cause toxocariasis in humans.

  9. Improvement of Theme Park Marketing Mode:A Case Study of Theme Parks in Chengdu

    Institute of Scientific and Technical Information of China (English)

    Min; LI; Gaoli; XIONG

    2013-01-01

    Construction of theme park has been launched since the early 1990s in Chengdu City,but ended up as a losing proposition after its short-term prosperity because of similar scale and similarity with those in other cities.As more international well-known theme parks entering the market,theme parks in Chengdu have been faced with the transition,and novel concepts are also introduced into the operation of these parks.To adapt to the market,it is imperative to make marketing strategies and combine marketing elements.Through analyzing current development of local theme parks and introducing successful marketing modes of domestic and overseas theme parks,a favorable marketing mode for theme parks in Chengdu was defined on the basis of fully exploring Ba-Shu culture(Ba and Shu are two ancient kingdoms in the history of Sichuan).By defining a favorable theme,focusing more on visitors’experience,devoting more in developing new products,adopting flexible price strategies,and integrating advertisement marketing,internet marketing,and other marketing methods,outstanding brands will be formed,and tourism cultures with distinguished features of Chengdu will be created.

  10. Meaning and Theme in Indian Style

    Directory of Open Access Journals (Sweden)

    Mojahed Gholami

    2016-12-01

    With a glimpse on what was said and a pause on the poems of Saeb Tabrizi, as one of the most seasoned poets in Indian style, it demonstrates part of his art and also illuminates the relation among word, meaning and theme in his poetry and viewpoint. He established multiple proportions among the concepts in his poem: sometimes he expressed a semantic unit as a content with diversities in word, or in some occasions, he expressed a semantic unit by different contents, with similar or dissimilar content maker elements, or even sometimes he use content maker elements for expressing multiple meanings and so on. Also it is necessary to be noted that when Saeb and the other poets of Indian style, measure the meaning by words, their meant is subjective matter and if the meaning comes with adjectives such as unfamiliar, narrow, distant, and so on, these words have used mainly in order to replace theme.

  11. Failure of combination therapy with imidocarb dipropionate and toltrazuril to clear Hepatozoon canis infection in dogs.

    Science.gov (United States)

    Pasa, Serdar; Voyvoda, Huseyin; Karagenc, Tulin; Atasoy, Abidin; Gazyagci, Serkal

    2011-09-01

    Current treatments with imidocarb dipropionate for infected dogs with Hepatozoon canis do not always provide parasitological cure. The objective of this study is to determine whether concomitant use of toltrazuril may potentiate the effect of imidocarb dipropionate in the management of H. canis infection (HCI). Twelve dogs were determined to have naturally HCI based on clinical signs, identification of the parasite in blood smears, and serologic assay. The animals were allocated randomly to one of two groups (n = 6 in each group). Dogs in Imi group were given imidocarb dipropionate at a dose of 6 mg/kg body weight subcutaneously in two injections 14 days apart. Imi plus Toltra group was given imidocarb dipropionate as dose mentioned above and toltrazuril at 10 mg/kg/day orally for the first five treatment days. Clinical findings, blood counts and parasitaemia levels in blood before and 14, 28 and 56 days after the initial treatment were performed to evaluate treatment response. The overall clinical efficacy of imidocarb dipropionate with and without toltrazuril was 83.3% and 66.7%, respectively; with a mean recovery time of 21.0 and 25.6 days, respectively. A substantial main effect of time on mean PCV, Hb, WBC, neutrophil and PLT and gradual reduction of parasitaemia were significantly observed in both groups (P < 0.05), whereas no significant difference was noticed between the studied protocols. The parasitologic cure rate at the end of eight weekly observation period was 16.6% and 33.3% in Imi and Imi plus Toltra groups, respectively. Similar clinicopathologic and parasitologic responses were observed in both treated groups; thus, it was concluded that toltrazuril does not reveal additional benefit to imidocarb therapy in dogs with HCI.

  12. Emerging themes in international business research

    OpenAIRE

    David A Griffith; Salih Tamer Cavusgil; Shichun Xu

    2008-01-01

    This study is motivated by two research questions: (1) Which recent contributions have been driving the research agenda in international business? (2) Which emerging themes in the literature are likely to set the stage for future work? To examine these questions, the study examined scholarly work in international business over the time period 1996–2006 in six leading international business journals (Journal of International Business Studies, Management International Review, Journal of World B...

  13. Acquisition and transmission of Hepatozoon canis (Apicomplexa: Hepatozoidae) by the tick Amblyomma ovale (Acari: Ixodidae).

    Science.gov (United States)

    Rubini, A S; Paduan, K S; Martins, T F; Labruna, M B; O'Dwyer, L H

    2009-10-14

    The present study aimed to evaluate under controlled conditions the acquisition of Hepatozoon canis by Amblyomma ovale after feeding on infected dogs, and the subsequent induction of infection in uninfected dogs that ingested the experimentally infected ticks. Two H. canis naturally infected dogs were infested with A. ovale adult ticks derived from an uninfected laboratory tick colony. After feeding, two A. ovale females presented H. canis oocysts in the hemolymph at the first and fourth days after removal of ticks from dogs. The oocysts had an average size of 244.34 microm x 255.46 microm. Three uninfected dogs were fed with ticks previously fed on the infected dogs. Only one dog became infected 32 days after oral inoculation, presenting circulating gametocytes, parasitemia less than 1%, and positive PCR confirmed to be H. canis by DNA sequencing. The results obtained indicated A. ovale ticks as potential vector of H. canis in rural areas of Brazil.

  14. Urinary creatinine to serum creatinine ratio and renal failure index in dogs infected with Babesia canis.

    Science.gov (United States)

    Zygner, Wojciech; Gójska-Zygner, Olga; Wesołowska, Agnieszka; Wędrychowicz, Halina

    2013-09-01

    Urinary creatinine to serum creatinine (UCr/SCr) ratio and renal failure index (RFI) are useful indices of renal damage. Both UCr/SCr ratio and RFI are used in differentiation between prerenal azotaemia and acute tubular necrosis. In this work the authors calculated the UCr/SCr ratio and RFI in dogs infected with Babesia canis and the values of these indices in azotaemic dogs infected with the parasite. The results of this study showed significantly lower UCr/SCr ratio in dogs infected with B. canis than in healthy dogs. Moreover, in azotaemic dogs infected with B. canis the UCr/SCr ratio was significantly lower and the RFI was significantly higher than in non-azotaemic dogs infected with B. canis. The calculated correlation between RFI and duration of the disease before diagnosis and treatment was high, positive and statistically significant (r = 0.89, p caused by B. canis in Poland acute tubular necrosis may develop.

  15. Comparative Foraging Efficiency of Two Sympatric Jackals, Silver-Backed Jackals (Canis mesomelas) and Golden Jackals (Canis aureus), in the Ngorongoro Crater, Tanzania

    OpenAIRE

    Temu, S. E.; Nahonyo, C. L.; Moehlman, P. D.

    2016-01-01

    The foraging efficiency of two sympatric species of jackals, silver-backed jackals (Canis mesomelas) and golden jackals (Canis aureus), was studied in the Ngorongoro crater from July 2014 through May 2015. The focal animal observation method was used and individuals of both species were followed as they foraged from morning to evening. Observations of individuals of both jackal species were made from a vehicle using binoculars and a spotting scope. Three major parameters were used for determi...

  16. Intraoperative bleeding in dogs from Grenada seroreactive to Anaplasma platys and Ehrlichia canis.

    Science.gov (United States)

    Lanza-Perea, M; Zieger, U; Qurollo, B A; Hegarty, B C; Pultorak, E L; Kumthekar, S; Bruhl-Day, R; Breitschwerdt, E B

    2014-01-01

    Frequent exposure of Grenadian dogs to Rhipicephalus sanguineus results in Anaplasma platys, and Ehrlichia canis seroreactivity. During elective surgeries, substantial intraoperative hemorrhage occurs in some seroreactive dogs. To assess hemostatic parameters and bleeding tendencies as well as prevalence of PCR positivity in apparently healthy A. platys and E. canis seroreactive and seronegative free-roaming dogs from Grenada. Forty-seven elective surgery dogs allocated to 4 groups: Seronegative control (n = 12), A. platys (n = 10), E. canis (n = 14) and A. platys, and E. canis (n = 11) seroreactive. Preoperatively, hemostasis was assessed by platelet count, prothrombin time, activated partial thromboplastin time, and buccal mucosal bleeding time. Intra- and postoperative bleeding scores were subjectively assigned. Blood, spleen, bone marrow, and lymph node aspirates were tested by PCR. Bleeding scores in dogs coseroreactive for A. platys and E. canis were higher (P = .015) than those of seronegative dogs. A. platys DNA was amplified from 7/21 (33%) A. platys seroreactive dogs and from 1 E. canis seroreactive dog; E. canis DNA was amplified from 21/25 (84%) E. canis seroreactive dogs. E. canis DNA was amplified most often from blood, whereas A. platys DNA was amplified most often from bone marrow. Apparently healthy, free-roaming dogs coseropositive for A. platys and E. canis may have increased intraoperative bleeding tendencies despite normal hemostatic parameters. Future investigations should explore the potential for vascular injury as a cause for bleeding in these dogs. Improved tick control is needed for dogs in Grenada. Copyright © 2014 by the American College of Veterinary Internal Medicine.

  17. MLVA and LPS Characteristics of Brucella canis Isolated from Humans and Dogs in Zhejiang, China

    Directory of Open Access Journals (Sweden)

    Dongri Piao

    2017-12-01

    Full Text Available BackgroundBrucella canis is a pathogenic bacterium that causes brucellosis in dogs, and its zoonotic potential has been increasing in recent years. B. canis is a rare source of human brucellosis in China, where Brucella melitensis has been the major pathogen associated with human brucellosis outbreaks. In late 2011, a case of a B. canis infection was detected in a human patient in Zhejiang Province, China. To compare the genotypes between strains of B. canis isolated from the patient and from dogs, a multiple-locus variable-number tandem-repeat analysis (MLVA-16 was performed. In addition, the lipopolysaccharide-synthesis-related genes were analyzed with the B. canis reference strain RM6/66.Results32 B. canis strains were divided into 26 genotypes using MLVA-16 [Hunter-Gaston Diversity Index (HGDI = 0.976]. The HGDI indexes for various loci ranged between 0.000 and 0.865. All four Hangzhou isolates were indistinguishable using panel 1 (genotype 3 and panel 2A (genotype 28. However, these strains were distinctly different from other isolates from Beijing, Jiangsu, Liaoning, and Inner Mongolia at Bruce 09. The emergence of a human B. canis infection was limited to an area. Comparative analysis indicated B. canis from canines and humans have no differences in lipopolysaccharide-synthesis locus.ConclusionThe comprehensive approaches have been used to analyze human and canine B. canis isolates, including molecular epidemiological and LPS genetic characteristics. Further detailed analysis of the whole genomic sequencing will contribute to understanding of the pathogenicity of B. canis in humans.

  18. High throughput pyrosequencing technology for molecular differential detection of Babesia vogeli, Hepatozoon canis, Ehrlichia canis and Anaplasma platys in canine blood samples.

    Science.gov (United States)

    Kaewkong, Worasak; Intapan, Pewpan M; Sanpool, Oranuch; Janwan, Penchom; Thanchomnang, Tongjit; Kongklieng, Amornmas; Tantrawatpan, Chairat; Boonmars, Thidarut; Lulitanond, Viraphong; Taweethavonsawat, Piyanan; Chungpivat, Sudchit; Maleewong, Wanchai

    2014-06-01

    Canine babesiosis, hepatozoonosis, ehrlichiosis, and anaplasmosis are tick-borne diseases caused by different hemopathogens. These diseases are causes of morbidity and mortality in dogs. The classic method for parasite detection and differentiation is based on microscopic observation of blood smears. The limitations of the microscopic method are that its performance requires a specially qualified person with professional competence, and it is ineffective in differentiating closely related species. This study applied PCR amplification with high throughput pyrosequencing for molecular differential detection of the following 4 hemoparasites common to tropical areas in dog blood samples: Babesia vogeli, Hepatozoon canis, Ehrlichia canis, and Anaplasma platys. PCR was initially used to amplify specific target regions of the ribosomal RNA genes of each parasite using 2 primer pairs that included 18S rRNA for protozoa (B. vogeli and H. canis) and 16S rRNA for rickettsia (E. canis and A. platys). Babesia vogeli and H. canis were discriminated using 9 nucleotide positions out of 30 base pairs, whereas E. canis and A. platys were differentiated using 15 nucleotide positions out of 34 base pairs that were determined from regions adjacent to 3' ends of the sequencing primers. This method provides a challenging alternative for a rapid diagnosis and surveillance of these tick-borne diseases in canines. Copyright © 2014 Elsevier GmbH. All rights reserved.

  19. The evolutionary state of the Beta Canis Majoris variables

    International Nuclear Information System (INIS)

    Shobbrook, R.R.

    1978-01-01

    New β photometry is presented for all the known β Canis Majoris variables and for other bright early B stars observable from the southern hemisphere which were close to the β CMa stars in a β/[c 1 ] diagram published earlier. The new β values are accurate to +- 0.002 or 0.003 mag and enable the 'instability strip' along which the variables lie to be defined much more precisely. Several of the other B stars also lie in the strip; most of these have already been found to be non-variable in a subsidiary observing programme. (author)

  20. Astrometry of red supergiant VY Canis Majoris with VERA

    Science.gov (United States)

    Choi, Y. K.; Hirota, T.; Honma, M.; Kobayashi, H.

    2008-07-01

    We present observational results on the red supergiant VY Canis Majoris with VERA. We have observed 22 GHz H2O masers and 43 GHz SiO masers (v=1 and 2 J=1-0) around VY CMa for 13 months. We succesfully detected a parallax of 0.87 ± 0.08 mas, corresponding to the distance of 1.15 +0.10-0.09 kpc using H2O masers. As the result of phase-referencing analyses, we have measured absolute positions for both H2O masers and SiO masers. The H2O maser features show rapid expansion off the central star.

  1. Assessment of the cytokine profile in peripheral blood mononuclear cells of naturally Sarcoptes scabiei var. canis infested dogs.

    Science.gov (United States)

    Singh, Shanker K; Dimri, Umesh; Sharma, Bhaskar; Saxena, Meeta; Kumari, Priyambada

    2014-12-15

    The mechanism of cytokine secretion from T lymphocytes plays an important role in the immune response of dogs and parasitic skin infestations. Assessment of the cytokine profile of naturally S. scabiei var. canis infested dogs could augment understanding of the pathobiology of canine sarcoptic mange. Therefore, the present study examined the cytokines in peripheral blood mononuclear cells of dogs suffering from sarcoptic mange. Thirteen dogs naturally infected with sarcoptic mange participated in the study. The dogs were found positive for S. scabiei var. canis mites in skin scraping examinations and revealed at least three clinical inclusion criteria. Another five clinically healthy dogs were kept as healthy controls. Peripheral blood mononuclear cells were isolated from heparinized blood samples and used for extraction of mRNA. Further, cDNA was synthesized by using 1 mg of mRNA by reverse transcription using oligonucleotide primers. Relative levels of cytokine expression were compared with normalized glyceraldehyde-3-phosphate dehydrogenase (GAPDH) transcripts. The levels of interleukin-4, interleukin-5 and transforming growth factor beta (TGF-β) mRNA expression in dogs with sarcoptic mange were significantly higher (P ≤ 0.01), whereas the level of tumor necrosis factor alpha (TNF-α) was significantly lower (P ≤ 0.01) in comparison with the healthy dogs. No remarkable difference was seen for interleukin-2 mRNA expression between these animals. An overproduction IL-4 and IL-5 might be involved in immuno-pathogenesis of canine sarcoptic mange. S. scabiei var. canis mites possibly induce an overproduction of TGF-β and reduced expression of TNF-α and thus could be conferring the immune suppression of infested dogs. Copyright © 2014 Elsevier B.V. All rights reserved.

  2. Violence and family bounds in Phaedra's theme

    OpenAIRE

    Soares, Filipe

    2016-01-01

    UID/HIS/04666/2013 In World Culture love is presented as one the major topics explored by its intervenients. Concerning our study, it presents love and sexuality in terms of its disruptiveness: they are characterized as a force that destabilizes the status quo of human communities, leading to situations of Love/ Violence and Love/ Death. From this point of view, the Theme of Phaedra (after Thompson‟s Motif-Index) can be analysed in this perspective. Its variations allow him to adapt to dif...

  3. Themes in human work interaction design

    DEFF Research Database (Denmark)

    Ørngreen, Rikke; Mark Pejtersen, Annelise; Clemmensen, Torkil

    2008-01-01

    Design (name HWID) through the last two and half years since the commencement of this Working Group. The paper thus provides an introduction to the theory and empirical evidence that lie behind the combination of empirical work studies and interaction design. It also recommends key topics for future......Abstract. This paper raises themes that are seen as some of the challenges facing the emerging practice and research field of Human Work Interaction Design. The paper has its offset in the discussions and writings that have been dominant within the IFIP Working Group on Human Work Interaction...

  4. The Underlying Theme of Shakespeare's Tragedy Tempest

    Institute of Scientific and Technical Information of China (English)

    谢倩

    2014-01-01

    The Tempest is one of William Shakespeare's famous play, which mainly focused on the magic and the Postcolonial oppression. The work exposed the crucial harm and inhumanity in those years. In order to demonstrate the deep meaning of this great work and everlasting influence it has made, this essay picks out two parts of its significant themes and gives them a detailed explanation. By demonstrate those profound meanings,the real value of The Tempest may be clearer and the readers can have a better understanding of it.

  5. A Hepatozoon species genetically distinct from H. canis infecting spotted hyenas in the Serengeti ecosystem, Tanzania.

    Science.gov (United States)

    East, Marion L; Wibbelt, Gudrun; Lieckfeldt, Dietmar; Ludwig, Arne; Goller, Katja; Wilhelm, Kerstin; Schares, Gereon; Thierer, Dagmar; Hofer, Heribert

    2008-01-01

    Health monitoring of spotted hyenas (Crocuta crocuta) in the Serengeti ecosystem, Tanzania, revealed Hepatozoon infection in all of 11 immature individuals examined following death from natural causes. Hepatozoon infection was probably an important factor contributing to mortality in two cases that exhibited clinical signs of ataxia, lethargy, ocular discharge, retching, and labored breathing before death. Whether Hepatozoon infection contributed to six deaths from fire, probable lion predation and unknown causes could not be determined. Four deaths from infanticide and starvation were unlikely to be associated with Hepatozoon infection. Histologic examination revealed lung tissue infected with cyst-like structures containing protozoan stages in all eight cases examined and interstitial pneumonia in most cases. Systemic spread of infection to several organs was found in three cases. Alignment of a 426 bp sequence from the parasite's 18s rRNA gene revealed a Hepatozoon species identical to that recently described from two domestic cats in Spain and only 7 bp substitutions when a 853 bp sequence was aligned to this cat Hepatozoon species. Previous reports of infection of wild carnivores in eastern and southern Africa with an unspecified Hepatozoon species similar in appearance to H. canis may have involved the species described in this study.

  6. Clinical, morphological, and molecular characterization of Penicillium canis sp. nov., isolated from a dog with osteomyelitis.

    Science.gov (United States)

    Langlois, Daniel K; Sutton, Deanna A; Swenson, Cheryl L; Bailey, Chris J; Wiederhold, Nathan P; Nelson, Nathan C; Thompson, Elizabeth H; Wickes, Brian L; French, Stephanie; Fu, Jianmin; Vilar-Saavedra, Paulo; Peterson, Stephen W

    2014-07-01

    Infections caused by Penicillium species are rare in dogs, and the prognosis in these cases is poor. An unknown species of Penicillium was isolated from a bone lesion in a young dog with osteomyelitis of the right ilium. Extensive diagnostic evaluation did not reveal evidence of dissemination. Resolution of lameness and clinical stability of disease were achieved with intravenous phospholipid-complexed amphotericin B initially, followed by long-term combination therapy with terbinafine and ketoconazole. A detailed morphological and molecular characterization of the mold was undertaken. Sequence analysis of the internal transcribed spacer revealed the isolate to be closely related to Penicillium menonorum and Penicillium pimiteouiense. Additional sequence analysis of β-tubulin, calmodulin, minichromosome maintenance factor, DNA-dependent RNA polymerase, and pre-rRNA processing protein revealed the isolate to be a novel species; the name Penicillium canis sp. nov. is proposed. Morphologically, smooth, ovoid conidia, a greenish gray colony color, slow growth on all media, and a failure to form ascomata distinguish this species from closely related Penicillium species. Copyright © 2014, American Society for Microbiology. All Rights Reserved.

  7. Large dust grains in the wind of VY Canis Majoris

    Science.gov (United States)

    Scicluna, P.; Siebenmorgen, R.; Wesson, R.; Blommaert, J. A. D. L.; Kasper, M.; Voshchinnikov, N. V.; Wolf, S.

    2015-12-01

    Massive stars live short lives, losing large amounts of mass through their stellar wind. Their mass is a key factor determining how and when they explode as supernovae, enriching the interstellar medium with heavy elements and dust. During the red supergiant phase, mass-loss rates increase prodigiously, but the driving mechanism has proven elusive. Here we present high-contrast optical polarimetric-imaging observations of the extreme red supergiant VY Canis Majoris and its clumpy, dusty, mass-loss envelope, using the new extreme-adaptive-optics instrument SPHERE at the VLT. These observations allow us to make the first direct and unambiguous detection of submicron dust grains in the ejecta; we derive an average grain radius ~0.5 μm, 50 times larger than in the diffuse ISM, large enough to receive significant radiation pressure by photon scattering. We find evidence for varying grain sizes throughout the ejecta, highlighting the dynamical nature of the envelope. Grains with 0.5 μm sizes are likely to reach a safe distance from the eventual explosion of VY Canis Majoris; hence it may inject upwards of 10-2 M⊙ of dust into the ISM. Based on observations made with European Southern Observatory (ESO) telescopes at the La Silla Paranal Observatory under program 60.A-9368(A).Appendix A is available in electronic form at http://www.aanda.org

  8. Memory-Based Quantity Discrimination in Coyotes (Canis latrans

    Directory of Open Access Journals (Sweden)

    Salif Mahamane

    2014-08-01

    Full Text Available Previous research has shown that the ratio between competing quantities of food significantly mediates coyotes‘ (Canis latrans ability to choose the larger of two food options. These previous findings are consistent with predictions made by Weber‘s Law and indicate that coyotes possess quantity discrimination abilities that are similar to other species. Importantly, coyotes‘ discrimination abilities are similar to domestic dogs (Canis lupus familiaris, indicating that quantitative discrimination may remain stable throughout certain species‘ evolution. However, while previously shown in two domestic dogs, it is unknown whether coyotes possess the ability to discriminate visual quantities from memory. Here, we address this question by displaying different ratios of food quantities to 14 coyotes before placing the choices out of sight. The coyotes were then allowed to select one of either non-visible food quantities. Coyotes‘ discrimination of quantity from memory does not follow Weber‘s Law in this particular task. These results suggest that working memory in coyotes may not be adapted to maintain information regarding quantity as well as in domestic dogs. The likelihood of a coyote‘s choosing the large option increased when it was presented with difficult ratios of food options first, before it was later presented with trials using more easily discriminable ratios, and when the large option was placed on one particular side. This suggests that learning or motivation increased across trials when coyotes experienced difficult ratios first, and that location of food may have been more salient in working memory than quantity of food.

  9. Seroprevalence of Toxocara canis infection in tropical Venezuela.

    Science.gov (United States)

    Lynch, N R; Eddy, K; Hodgen, A N; Lopez, R I; Turner, K J

    1988-01-01

    An enzyme-linked immunosorbent assay (ELISA) was used to determine the seroprevalence of Toxocara canis infection in different socio-economic groups of the tropical population of Venezuela. The lack of definitive independent diagnostic criteria for toxocariasis required the establishment of operational upper limits of normality for Toxocara ELISA values, based upon their log-normalized distribution in a presumptive "non-toxocariasis" sub-population. Only 1.8% of urban subjects of medium-high socio-economic level were considered to be clearly positive in Toxocara ELISA, compared to 20.0% of urban slum dwellers, 25.6% rural subsistence farmers and 34.9% Amazon Indians. As the test was performed using excretory-secretory antigen, and under conditions of competitive inhibition by soluble extracts of non-homologous parasites, co-infection by common intestinal helminths, protozoa or other organisms did not give rise to false positive results. However, strong cross-reactivity with Onchocerca volvulus may have influenced the prevalence figure obtained for the Amazon Indians. These results indicate that T. canis is yet another parasite that is widely distributed in economically underprivileged tropical populations.

  10. Molecular detection of Anaplasma platys, Anaplasma phagocytophilum and Wolbachia sp. but not Ehrlichia canis in Croatian dogs.

    Science.gov (United States)

    Huber, Doroteja; Reil, Irena; Duvnjak, Sanja; Jurković, Daria; Lukačević, Damir; Pilat, Miroslav; Beck, Ana; Mihaljević, Željko; Vojta, Lea; Polkinghorne, Adam; Beck, Relja

    2017-11-01

    The bacteria Anaplasma platys, Anaplasma phagocytophilum and Ehrlichia canis are tick-borne agents that cause canine vector-borne disease. The prevalence of these pathogens in South Eastern Europe is unknown with the exception of an isolated case of A. platys detected in a dog imported into Germany from Croatia. To gain a better insight into their presence and prevalence, PCR-based screening for these bacterial pathogens was performed on domesticated dogs from different regions of Croatia. Blood samples from 1080 apparently healthy dogs from coastal and continental parts of Croatia as well as tissue samples collected from 63 deceased dogs with a history of anaemia and thrombocytopenia were collected for molecular screening by an Anaplasmataceae-specific 16S rRNA conventional PCR. Positive samples were confirmed using a second Anaplasmataceae-specific PCR assay with the PCR product sequenced for the purpose of bacterial species identification. All sequenced isolates were georeferenced and a kernel intensity estimator was used to identify clusters of greater case intensity. 42/1080 (3.8%; CI 2.7-5.0) of the healthy dogs were PCR positive for bacteria in the Anaplasmataceae. Sequencing of the 16S rRNA gene amplified from these positive samples revealed the presence of A. platys in 2.5% (CI 1.6-3.4%, 27 dogs), A. phagocytophilum in 0.3% (CI 0-0.6%, 3 dogs) and a Wolbachia endosymbiont in 1.1% (CI 0.4-1.6%, 12 dogs) of dogs screened in this study. Necropsied dogs were free from infection. Notably, no evidence of E. canis infection was found in any animal. This survey represents a rare molecular study of Anaplasmataceae in dogs in South Eastern Europe, confirming the presence of A. platys and A. phagocytophilum but not E. canis. The absence of E. canis was surprising given it has been described in all other Mediterranean countries surveyed and raises questions over the regional vector capacity of the Rhipicephalus sanguineus tick.

  11. Prevalence of Demodex canis-positive healthy dogs at trichoscopic examination.

    Science.gov (United States)

    Fondati, Alessandra; De Lucia, Michela; Furiani, Nicla; Monaco, Moira; Ordeix, Laura; Scarampella, Fabia

    2010-04-01

    Demodex canis is thought to be present in small numbers in the skin of most healthy dogs; however, available data on the prevalence of normal dogs harbouring D. canis are scarce. The purpose of this study was to investigate, using microscopic examination of plucked hairs, the prevalence of healthy dogs harbouring D. canis. Seventy-eight clinically healthy dogs with no history of dermatological problems and clinically normal skin and hair coat were included in the study. Five areas (perioral skin 2-3mm from both labial commissures, periungual skin of the third digit of both anterior paws and chin) were examined in each dog. Fifty to sixty hairs were plucked from each skin site and microscopically examined. No D. canis mites were observed and only one adult form of Demodex injai was found in the labial commissure of one dog. Based on these results, the estimated prevalence of healthy dogs harbouring D. canis in clinically normal skin should not exceed the threshold of 5.4%, with 95% confidence level. Considering our and previous findings, we propose that, although small numbers of D. canis might inhabit the skin of normal dogs, the probability of finding these mites in normal dogs is low. Consequently, in most cases, the presence of a D. canis mite in the skin should not be considered as indicative of normality.

  12. SCM-positive Streptococcus canis are predominant among pet-associated group G streptococci.

    Science.gov (United States)

    Verkühlen, Gerd-Josef; Pägelow, Dennis; Valentin-Weigand, Peter; Fulde, Marcus

    2016-01-01

    Streptococcus (S.) canis is a neglected zoonotic pathogen with increasing impor- tance. Since knowledge about its distribution in pets in Germany is scant, we designed a study and tested 335 dogs and 71 cats for colonization by S. canis. S. canis was isolated from swabs taken from the perianal region by culture and subsequent identification was performed biochemically as well as by PCR. In total, 15.8% (53) of the canine and 8.5% (six) of the feline strains grown on Staphlyo- coccus/Streptococcus Selective Agar were tested positive for the Lancefield group G antigen. The vast majority of strains expressing the Lancefield Group G carbohy- drate (56 out of 59) were further identified as S. canis underlining their outstanding role among animal-associated Group G streptococci (GGS). Furthermore, 90.0% of the canine and 83.3% of the feline S. canis strains harbour the species-specific anti- phagocytic M protein homologue SCM, which has been described as an important virulence factor. In contrast, emm-genes typically encoded by human-specific GGS could not be detected in any of the S. canis isolates. Taken together, this study provides insights into the distribution of the neglected zoonotic pathogen S. canis in a population of pets in Germany. The presence of SCM in the vast majority of strains indicates their pathogenic potential.

  13. Zoonotic enteric parasites transmitted from dogs in Egypt with special concern to Toxocara canis infection

    Directory of Open Access Journals (Sweden)

    Maysa A. I. Awadallah

    2015-08-01

    Full Text Available Aim: This work aimed to study the role played by dogs in transmitting zoonotic enteric parasites to humans in Egypt and to analyze the risk factors associated with the occurrence of such infection in dogs. Serodiagnosis of anti-Toxocara immunoglobulin G (IgG antibodies among human beings as well as analyzing risk factors predispose to Toxocara canis infection in human beings are another objectives of this study. Materials and Methods: From June to December 2013, a total of 130 fecal samples from 4 dog populations (Military, nomadic and domiciled dogs from rural and high standard districts and 150 stool samples of 6 occupational groups were examined for the presence of enteric parasitic infection. Moreover, 150 serum samples were collected from humans from whom stool samples were collected and examined for the presence of anti-T. canis antibodies. Results: Enteric parasites were detected in 30% of fecal samples from 4 dog populations in Egypt. High infectivity had been reported in nomadic dogs (63.33% (Crude odds ratios [COR]=67.36, 95% confidence interval [CI]=8.09-560.8, p˂0.000, followed by domiciled dogs from rural areas (40% (COR=26, 95% CI=3.14-215.54, p=0.003, domiciled dogs from high standard areas (23.33% (COR=11.87, 95% CI=1.37-102.69, p=0.025 and military dogs (2.5%. Twelve species of enteric parasites were identified, Ancylostomatidae (6.15%, T. canis and Cryptosporidium spp. (5.38%, each, Heterophyes spp. (3.85%, Toxocara leonina and Blastocystis spp. (3.07%, Taenidae eggs (2.31%, Hymenolepis diminuta (1.54% and Entamoeba canis, Cyclospora cayetanensis, and Paragonimus spp. (0.77%, each. Univariate logestic regression revealed significant association of age (COR=4.73, 95% CI=2.13-10.53, p˂0.000, gender (COR=2.63, 95% CI=1.22-5.68, p˂0.014, housing system (COR=5.10, 95% CI=2.04-12.75, p˂0.000 with enteric parasitic infection in dogs. However, breeds (COR=6.91, 95% CI=0.88-54.52, p=0.067 and type of feeding (COR ranged from 3.5 to

  14. Molecular detection of Dirofilaria immitis, Hepatozoon canis, Babesia spp., Anaplasma platys and Ehrlichia canis in dogs on Costa Rica.

    Science.gov (United States)

    Wei, Lanjing; Kelly, Patrick; Ackerson, Kate; El-Mahallawy, Heba S; Kaltenboeck, Bernhard; Wang, Chengming

    2014-03-01

    Although vector-borne diseases are important causes of morbidity and mortality in dogs in tropical areas, there is little information on these conditions in Costa Rica. In PCRs of blood from dogs in Costa Rica, we did not detect DNAs of Rickettsia (R.) felis and Coxiella (C.) burnetii but we did find evidence of infection with Dirofilaria (D.) immitis (9/40, 22.5%), Hepatozoon (H.) canis (15/40, 37.5%), Babesia spp. (10/40, 25%; 2 with B. gibsoni and 8 with B. vogeli), Anaplasma (A.) platys (3/40, 7.5%) and Ehrlichia (E.) canis (20/40, 50%). Nine dogs (22.5%) were free of any vector-borne pathogens while 14 (35%) were infected with a single pathogen, 11 (27.5%) with two, 4 (10%) with three, 1 (2.5%) with four, and 1 (2.5%) with five pathogens. Dogs in Costa Rica are commonly infected with vector-borne agents.

  15. Infestivity of Demodex canis to hamster skin engrafted onto SCID mice.

    Science.gov (United States)

    Tani, Kenji; Une, Satoshi; Hasegawa, Atsuhiko; Adachi, Makoto; Kanda, Naoko; Watanabe, Shin-ichi; Nakaichi, Munekazu; Taura, Yasuho

    2005-04-01

    We demonstrated that Demodex canis was transferred to skin xenografts of a dog and a hamster onto severe combined immunodeficiency mice. After the transfer of mites, the number of eggs, larvae, nymphs and adult mites per gram of canine and hamster xenografts increased, whereas no live mites were detected on murine allograft. These results indicate that D. canis proliferates in hair follicles of dog and hamster skins but not in murine allograft. Therefore, D. canis may have host preference but not strict host-specificity.

  16. Creation of meanings on the theme

    Directory of Open Access Journals (Sweden)

    Eveline Borges

    2011-12-01

    Full Text Available Investments in policies for science teachers, as well as their adaptation to new realities and technologies are essential, since the teacher is the key to changing mindsets and attitudes of their students. Thus, conceptual discussions are proposed between chemistry teachers in a virtual environment on the Moodle platform on topics previously chosen by the education teacher. The objective is to analyze the process of creating meanings of participants of the forum on the theme "nature of science." It was noticed that new media can help building students' knowledge and motivate them to expand their research and scientific readings; however, rules must be preestablished so that a real interaction and mediation could occur. Initiatives like these are useful for the understanding of scientific and technical fields, and may also facilitate communication and interaction between teachers and students.

  17. Rotating swings—a theme with variations

    Science.gov (United States)

    Pendrill, Ann-Marie

    2016-01-01

    Rotating swing rides can be found in many amusement parks, in many different versions. The ‘wave swinger’ ride, which introduces a wave motion by tilting the roof, is among the classical amusement rides that are found in many different parks, in different sizes, from a number of different makes and names, and varying thematization. The ‘StarFlyer’ is a more recent version, adding the thrill of lifting the riders 60 m or more over the ground. These rotating swing rides involve beautiful physics, often surprising, but easily observed, when brought to attention. The rides can be used for student worksheet tasks and assignments of different degrees of difficulty, across many math and physics topics. This paper presents a number of variations of student tasks relating to the theme of rotating swing rides.

  18. Mercosur's regional health agenda: architecture and themes

    Directory of Open Access Journals (Sweden)

    Luisa Guimaraes Queiroz

    Full Text Available This article describes the shaping of institutional health spaces in the Mercosur, with analysis of themes and results and considerations on the construction of the regional agenda and on the effects of regional economic integration processes on health policies and systems. We discuss the organization, operation, focus topics, and results achieved in specific health forums (Meeting of Ministers of Health and Sub-Working Group 11, seeking to analyze the architecture and issues addressed by the regional agenda and drawing parallels with the European experience. The aim of this reflection is to identify how the work done by Mercosur structures contributes to building a regional agenda, with the expectation that the integration can contribute to reducing inequalities in access to health care in the region.

  19. I. L. Caragiale. Theme and Variations

    Directory of Open Access Journals (Sweden)

    Adela Drăucean

    2010-11-01

    Full Text Available Analyzing Caragiale’s work, a so called “unity in variety” can be noticed and his entire creation may be named after one of his sketches, Plot and variations. Since the fire on Dealul Spirii, a real story, had been given five different interpretations by the local media, so must we understand Caragiale’s literary pieces: they have a “plot”, i.e. the society, and several “variants” (forms, i.e. the events or happenings of all kinds. As an urban writer, Caragiale was preoccupied with the town and its very life, but also with folk themes and motifs. He also described the countryside with its scenery, inns and innkeepers, the places where people used to meet and talk. Trades and their professions were presented in his sketches and stories, too

  20. Enhancing Students’ Local Knowledge Through Themed Garden Project

    Directory of Open Access Journals (Sweden)

    Esa Norizan

    2015-01-01

    Full Text Available Traditional or local knowledge is a major issue to be focused on, particularly since the implementation of the Strategic Plan for Biodiversity 2011–2020 and the Aichi Targets “Living in Harmony with Nature”. According to the strategic goals, by 2020, conservation of biodiversity and its sustainable use incorporate what local and indigenous communities have within their traditional knowledge, innovation and practice and their customary use of biological resources are respected at all relevant levels. The older generation among the local people usually use medicinal herbs for various ailments, health care and other cultural purposes. However, encroaching industrialization and the changes in today’s life styles are responsible for the decreasing practice in the local use of herbs especially for healing purposes. It is, therefore, felt worthwhile to encourage young generations such as school children to gain knowledge about these local herbs and record the native uses of these herbs before the information is lost. One biodiversity education program was conducted to facilitate secondary school students to set up a themed garden and find out the local knowledge of the plants they grew in their garden from their family members or communities. The findings revealed that students’ local knowledge on healing improved after they joined the program. Therefore, it is proposed that the themed garden project can enhance students’ local knowledge.

  1. Results from the Coded Aperture Neutron Imaging System (CANIS)

    International Nuclear Information System (INIS)

    Brubaker, Erik; Steele, John T.; Brennan, James S.; Hilton, Nathan R.; Marleau, Peter

    2010-01-01

    Because of their penetrating power, energetic neutrons and gamma rays (∼1 MeV) offer the best possibility of detecting highly shielded or distant special nuclear material (SNM). Of these, fast neutrons offer the greatest advantage due to their very low and well understood natural background. We are investigating a new approach to fast-neutron imaging- a coded aperture neutron imaging system (CANIS). Coded aperture neutron imaging should offer a highly efficient solution for improved detection speed, range, and sensitivity. We have demonstrated fast neutron and gamma ray imaging with several different configurations of coded masks patterns and detectors including an 'active' mask that is composed of neutron detectors. Here we describe our prototype detector and present some initial results from laboratory tests and demonstrations.

  2. Prolonged intensive dominance behavior between gray wolves, Canis lupus

    Science.gov (United States)

    Mech, L. David; Cluff, H. Dean

    2010-01-01

    Dominance is one of the most pervasive and important behaviors among wolves in a pack, yet its significance in free-ranging packs has been little studied. Insights into a behavior can often be gained by examining unusual examples of it. In the High Arctic near Eureka, Nunavut, Canada, we videotaped and described an unusually prolonged and intensive behavioral bout between an adult male Gray Wolf (Canis lupus) and a male member of his pack, thought to be a maturing son. With tail raised, the adult approached a male pack mate about 50 m from us and pinned and straddled this packmate repeatedly over 6.5 minutes, longer than we had ever seen in over 50 years of studying wolves. We interpreted this behavior as an extreme example of an adult wolf harassing a maturing offspring, perhaps in prelude to the offspring?s dispersal.

  3. [Diphyllobothrium pacificum (Nybelin,1931) margolis, 1956 in Canis familiaris from Chincha city, Peru].

    Science.gov (United States)

    Cabrera, R; Tantaleán, M; Rojas, R

    2001-01-01

    In this communication is presented the finding of the tapeworm Diphyllobothrium pacificum, parasite of sea lions, in Canis familiaris (dog) in Chincha city, Peru. This is the first canine infection with D. pacificum in the South Peruvian coast.

  4. Prevalence of Toxoplasma gondii and Toxocara canis among Patients with Uveitis.

    Science.gov (United States)

    Lim, Su Jin; Lee, Sang Eun; Kim, Sun Hyun; Hong, Sung-Hee; You, Yong Sung; Kwon, Oh Woong; Kim, Hyeun Seung

    2015-04-01

    To investigate the prevalence of Toxoplasma gondii and Toxocara canis in patients with uveitis. Patients with uveitis were examined. Serum antibodies to T. gondii and T. canis were tested by using the enzyme-linked immunosorbent assay. Polymerase chain reaction (PCR) was done using blood and aqueous humor (AH). Ninety-eight patients were enrolled. Mean age was 43.5 ± 13.2 years. Six patients were seropositive for T. gondii with the following pattern: anterior uveitis, 1; posterior uveitis with retinitis, 2; pan uveitis, 2. One patient had a positive PCR result for T. gondii in AH, who showed panuveitis. Twenty-three patients were positive to serum IgG for T. canis with the following clinical manifestation: granuloma, 6; pigmented scar, 3; vitritis, 6--but none were PCR positive. T. gondii and T. canis are still important causes of uveitis. Ocular toxocariasis is not an uncommon cause of uveitis, even in adults.

  5. First isolation and molecular characterization of Ehrlichia canis in Costa Rica, Central America.

    Science.gov (United States)

    Romero, L E; Meneses, A I; Salazar, L; Jiménez, M; Romero, J J; Aguiar, D M; Labruna, M B; Dolz, G

    2011-08-01

    The present study investigated Ehrlichia species in blood samples from dogs suspected of clinical ehrlichiosis, using molecular and isolation techniques in cell culture. From a total of 310 canine blood samples analyzed by 16S rRNA nested PCR, 148 (47.7%) were positive for Ehrlichia canis. DNA from Ehrlichia chaffeensis or Ehrlichia ewingii was not detected in any sample using species-specific primers in separated reactions. Leukocytes from five PCR-positive dogs were inoculated into DH82 cells; successful isolation of E. canis was obtained in four samples. Partial sequence of the dsb gene of eight canine blood samples (including the five samples for in vitro isolation) was obtained by PCR and their analyses through BLAST showed 100% of identity with the corresponding sequence of E. canis in GenBank. This study represents the first molecular diagnosis, isolation, and molecular characterization of E. canis in dogs from Costa Rica. Copyright © 2010 Elsevier Ltd. All rights reserved.

  6. [Characterization of the genetic variability of field strains of Brucella canis isolated in Antioquia].

    Science.gov (United States)

    Vidal Arboleda, Juana L; Ortiz Roman, Luisa F; Olivera Angel, Martha

    2017-12-22

    Brucella canis is a facultative intracellular pathogen responsible for canine brucellosis, a zoonotic disease that affects canines, causing abortions and reproductive failure; and the production of non-specific symptoms in humans. In 2005 the presence of B. canis in Antioquia was demonstrated and the strains were identified as type 2. The sequencing of the genome of a field strain denoted Brucella canis str. Oliveri, showed species-specific indel events, which led us to investigate the genomic characteristics of the B. canis strain isolated and to establish the phylogenetic relationships and the divergence time of B. canis str. Oliveri. Conventional PCR sequencing was performed in 30 field strains identifying 5 indel events recognized in B. canis str. Oliveri. ADN from Brucella suis, Brucella melitensis and vaccine strains from Brucella abortus were used as control, and it was determined that all of the studied field strains shared 4 out of the 5 indels of the sequenced Oliveri strain, indicating the presence of more than one strain circulating in the region. Phylogenetic analysis was performed with 24 strains of Brucella using concatenated sequences of genetic markers for species differentiation. The molecular clock hypothesis and Tajima's relative rate test were tested, showing that the Oliveri strain, similarly to other canis species, diverged from B. suis. The molecular clock hypothesis between Brucella species was rejected and an evolution rate and a similar genetic distance between the B. canis were demonstrated. Copyright © 2017 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

  7. Behavioral changes in Rattus norvegicus coinfected by Toxocara canis and Toxoplasma gondii

    Directory of Open Access Journals (Sweden)

    Maisa Leite de Queiroz

    2013-02-01

    Full Text Available Using an elevated plus maze apparatus and an activity cage, behavioral changes in Rattus norvegicus concomitantly infected by Toxocara canis and Toxoplasma gondii were studied, during a period of 120 days. Rats infected by Toxocara canis or Toxoplasma gondii showed significant behavioral changes; however, in the group coinfected by both parasites a behavioral pattern similar to that found in the group not infected was observed thirty days after infection, suggesting the occurrence of modulation in the behavioral response.

  8. On Themes of the Eagle by Alfred Tennyson

    Institute of Scientific and Technical Information of China (English)

    陈晓庆

    2009-01-01

    Theme is significant to poetry.Not only music but also theme is related to poetry since its birth.Usually great poems have more than one theme.Nowadays different approaches of literary analysis are on stage.The different approaches are employed to expound the rich themes of The Eagle-in memorial of Hallam,in praise of Britain's colonial expansion and in eulogy of nature.

  9. Taoism themes in modern chinese cinematography

    OpenAIRE

    Andreev, D. I.; Андреев, Д. И.

    2014-01-01

    The paper demonstrates some peculiarities of Taoism, a Chinese national religion, in its intersection with Chinese cinematography. The paper analyses how Taoism themes influence modern Chinese films and how they are interpreted in plots, characters and symbolism of these films. В работе рассматриваются некоторые особенности Даосизма, национальной религии Китая, в его корреляции с китайским кинематографом. В работе анализируется, каким образом Даосские мотивы влияют на современный китайский...

  10. Effects of Instructions on Theme Grading: Grammatical vs. Holistic

    Science.gov (United States)

    Follman, John; And Others

    1971-01-01

    Twelve college seniors in an English methods course were assigned to three treatment groups, Grammatical, Holistic, and Both. Each group received different instructions but graded the same 10 themes. Themes graded for grammatical errors received lower grades than the same themes graded holistically. (NH)

  11. Theme 10: greenhouse effect transport policies and urban organization

    International Nuclear Information System (INIS)

    2002-07-01

    This document describes the reference framework of the theme 10 ''greenhouse effect, transport policies and urban organization'' which is a part of the urban transports interface. It presents the specific actions realized by the theme 10 for a future integration in theme 1, 5 and 8. (A.L.B.)

  12. Size‐assortative choice and mate availability influences hybridization between red wolves (Canis rufus) and coyotes (Canis latrans)

    Science.gov (United States)

    Hinton, Joseph W.; Gittleman, John L.; van Manen, Frank T.; Chamberlain, Michael J.

    2018-01-01

    Anthropogenic hybridization of historically isolated taxa has become a primary conservation challenge for many imperiled species. Indeed, hybridization between red wolves (Canis rufus) and coyotes (Canis latrans) poses a significant challenge to red wolf recovery. We considered seven hypotheses to assess factors influencing hybridization between red wolves and coyotes via pair‐bonding between the two species. Because long‐term monogamy and defense of all‐purpose territories are core characteristics of both species, mate choice has long‐term consequences. Therefore, red wolves may choose similar‐sized mates to acquire partners that behave similarly to themselves in the use of space and diet. We observed multiple factors influencing breeding pair formation by red wolves and found that most wolves paired with similar‐sized conspecifics and wolves that formed congeneric pairs with nonwolves (coyotes and hybrids) were mostly female wolves, the smaller of the two sexes. Additionally, we observed that lower red wolf abundance relative to nonwolves and the absence of helpers increased the probability that wolves consorted with nonwolves. However, successful pairings between red wolves and nonwolves were associated with wolves that maintained small home ranges. Behaviors associated with territoriality are energetically demanding and behaviors (e.g., aggressive interactions, foraging, and space use) involved in maintaining territories are influenced by body size. Consequently, we propose the hypothesis that size disparities between consorting red wolves and coyotes influence positive assortative mating and may represent a reproductive barrier between the two species. We offer that it may be possible to maintain wild populations of red wolves in the presence of coyotes if management strategies increase red wolf abundance on the landscape by mitigating key threats, such as human‐caused mortality and hybridization with coyotes. Increasing red wolf abundance would

  13. Brucella canis: inquéritos sorológico e bacteriológico em população felina Brucella canis: serological and bacteriological surveys in the feline population

    Directory of Open Access Journals (Sweden)

    Maria Helena Matiko Akao Larsson

    1984-02-01

    Full Text Available De 134 soros de felinos domésticos examinados pela prova de soroaglutinação lenta em tubos, 4 (3% foram positivos para Brucella canis, todos com título igual a 100. Não se obteve êxito na tentativa de isolamento de Brucella canis através de hemocultura desses animais.Of the 134 feline sera tested by tube agglutination test, 4 (3% were positive for Brucella canis antibodies, all with titer 100. It was not possible to isolate Brucella canis by blood culture in the case of these animals.

  14. Hepatozoon canis (James, 1905 in dogs from Uberlândia, Minas Gerais. Reports of two cases.

    Directory of Open Access Journals (Sweden)

    Antonio Vicente Mundim

    1992-12-01

    Full Text Available Hepatozoon canis gametocytes, measuring 9,56 µm x 5,60 µm were identified in circulating leukocytes of two dogs admitted to the Veterinary Hospital of the Universidade Federal de Uberlândia. Morulae of Ehrlichia canis were also found in circulating monocytes. The authors report the first occurrence of H. canis in Uberlândia, Minas Gerais state.

  15. Child injury control: trends, themes, and controversies.

    Science.gov (United States)

    Johnston, Brian D; Ebel, Beth E

    2013-01-01

    Injury is a major cause of morbidity and mortality among US children, and an important driver of health status globally. Despite its enormous burden, injury is preventable. Over the last 10 years, significant progress has been made in the reduction of unintentional injury among US children. However, aggregate trends mask important disparities by age group, region, and injury mechanism. Basic and translation research is needed to develop and test prevention strategies to address these new or recalcitrant problems. Motor vehicle occupant injury has fallen to historic lows, but challenges remain in protecting novice drivers and managing the distraction of new technologies. Injury to pedestrians has also declined, but likely as a result of decreased exposure as fewer children walk. This calls for a broader public health perspective to promote activity while enhancing safety. Deaths due to drowning are common and illustrate the difficulty in measuring and promoting appropriate supervision. Environmental modification and use of protective products may be a more appropriate response. Concussion in sport is another challenging issue: public health laws promote identification and appropriate management of concussed athletes, but less progress has been made on primary prevention of these injuries. Unintentional poisoning is on the rise, attributable to misuse of, and overdose with, prescription opioids. Injury deaths to infants are also increasing. This trend is driven in part by better death investigation that classifies more sleep-related deaths as suffocation events. Finally, we examine a sample of cross-cutting themes and controversies in injury control that might be amenable to empiric evaluation. Copyright © 2013 Academic Pediatric Association. Published by Elsevier Inc. All rights reserved.

  16. A gene expression signature of confinement in peripheral blood of red wolves (Canis rufus).

    Science.gov (United States)

    Kennerly, Erin; Ballmann, Anne; Martin, Stanton; Wolfinger, Russ; Gregory, Simon; Stoskopf, Michael; Gibson, Greg

    2008-06-01

    The stresses that animals experience as a result of modification of their ecological circumstances induce physiological changes that leave a signature in profiles of gene expression. We illustrate this concept in a comparison of free range and confined North American red wolves (Canis rufus). Transcription profiling of peripheral blood samples from 13 red wolf individuals in the Alligator River region of North Carolina revealed a strong signal of differentiation. Four hundred eighty-two out of 2980 transcripts detected on Illumina HumanRef8 oligonucleotide bead arrays were found to differentiate free range and confined wolves at a false discovery rate of 12.8% and P stress responses in confined animals. Consequently, characterization of differential transcript abundance in an accessible tissue such as peripheral blood identifies biomarkers that could be useful in animal management practices and for evaluating the impact of habitat changes on population health, particularly as attention turns to the impact of climate change on physiology and in turn species distributions.

  17. An Interferometric Spectral Line and Imaging Survey of VY Canis Majoris in the 345 GHz Band

    Science.gov (United States)

    Kamiński, T.; Gottlieb, C. A.; Young, K. H.; Menten, K. M.; Patel, N. A.

    2013-12-01

    A spectral line survey of the oxygen-rich red supergiant VY Canis Majoris was made between 279 and 355 GHz with the Submillimeter Array (SMA). Two hundred twenty-three spectral features from 19 molecules (not counting isotopic species of some of them) were observed, including the rotational spectra of TiO, TiO2, and AlCl for the first time in this source. The parameters and an atlas of all spectral features are presented. Observations of each line with a synthesized beam of ~0.''9, reveal the complex kinematics and morphology of the nebula surrounding VY CMa. Many of the molecules are observed in high-lying rotational levels or in excited vibrational levels. From these, it was established that the main source of the submillimeter-wave continuum (dust) and the high-excitation molecular gas (the star) are separated by about 0.''15. Apparent coincidences between the molecular gas observed with the SMA, and some of the arcs and knots observed at infrared wavelengths and in the optical scattered light by the Hubble Space Telescope are identified. The observations presented here provide important constraints on the molecular chemistry in oxygen-dominated circumstellar environments and a deeper picture of the complex circumstellar environment of VY CMa.

  18. The Asymmetric Nebula Surrounding the Extreme Red Supergiant VY Canis Majoris

    Science.gov (United States)

    Smith, Nathan; Humphreys, Roberta M.; Davidson, Kris; Gehrz, Robert D.; Schuster, M. T.; Krautter, Joachim

    2001-02-01

    We present HST/WFPC2 images plus ground-based infrared images and photometry of the very luminous OH/IR star VY Canis Majoris. Our WFPC2 data show a complex distribution of knots and filamentary arcs in the asymmetric reflection nebula around the obscured central star. The reflection arcs may result from multiple, asymmetric ejection episodes due to localized events on VY CMa's surface. Such events probably involve magnetic fields and convection, by analogy with solar activity. Surface photometry indicates that the star may have experienced enhanced mass loss over the past 1000 yr. We also demonstrate that the apparent asymmetry of the nebula results from a combination of high extinction and backscattering by dust grains. Thermal-infrared images reveal a more symmetric distribution, elongated along a nearly east-west direction. VY CMa probably has a flattened disklike distribution of dust with a northeast-southwest polar axis and may be experiencing activity analogous to solar prominences. The presence of an axis of symmetry raises interesting questions for a star the size of Saturn's orbit. Magnetic fields and surface activity may play an important role in VY CMa's mass-loss history. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.

  19. Physical Properties and Evolution of the Eclipsing Binary System XZ Canis Minoris

    Science.gov (United States)

    Poochaum, R.; Komonjinda, S.; Soonthornthum, B.; Rattanasoon, S.

    2010-07-01

    This research aims to study the eclipse binary system so that its physical properties and evolution can be determined and used as an example to teach high school astronomy. The study of an eclipsing binary system XZ Canis Minoris (XZ CMi) was done at Sirindhorn Observatory, Chiang Mai University using a 0.5-meter reflecting telescope with CCD photometric system (2184×1417 pixel) in B V and R bands of UVB System. The data obtained were used to construct the light curve for each wavelength band and to compute the times of its light minima. New elements were derived using observations with linear to all available minima. As a result, linear ephemeris is HDJmin I = .578 808 948+/-0.000 000 121+2450 515.321 26+/-0.001 07 E, and the new orbital period of XZ CMi is 0.578 808 948+/-0.000 000 121 day. The values obtained were used with the previously published times of minima to get O-C curve of XZ CMi. The result revealed that the orbital period of XZ CMi is continuously decreased at a rate of 0.007 31+/-0.000 57 sec/year. This result indicates that the binary stars are moving closer continuously. From the O-C residuals, there is significant change to indicate the existence of the third body or magnetic activity cycle on the star. However, further analysis of the physical properties of XZ CMi is required.

  20. Eastern Coyote/Coywolf (Canis latrans x lycaon Movement Patterns: Lessons Learned in Urbanized Ecosystems

    Directory of Open Access Journals (Sweden)

    Jonathan G. Way

    2011-01-01

    Full Text Available Activity and movement patterns represent a fundamental aspect of a species natural history. Twenty four-hour movements of eastern coyotes or coywolves (Canis latrans x lycaon; hereafter eastern coyote for consistency purposes ranged up to 31.9 linear km and averaged 23.5 + 7.3 (SD km from 5-14 radio-fixes during each 24 hr monitoring period. Coyotes moved mostly at night and through altered open areas (e.g., powerlines, dumps more than expected when compared to residential and natural areas. Coyotes inhabiting urbanized areas generally use residential areas for traveling and/or foraging. With large daily (or more aptly, nightly movement patterns, resident coyotes can potentially be located anywhere within their large home ranges at any given time, as data revealed that one pack (3-4 individuals can cover a combined 75-100 km per night, in a territory averaging 20-30 km2. Transient movements from capture location to end location varied from 23.0—100.5 km and averaged 63.8 km for two females and 49.3 km for four males. Eastern coyotes travel long distances even in human-dominated areas, allowing transients to find vacant territories. Because of their ability to move through urban areas and to colonize and recolonize areas, management efforts should focus more on educating the public about actual coyote behavior and their life history needs than on killing them.

  1. Theme 10: greenhouse effect transport policies and urban organization; Theme 10: effet de serre politiques de deplacements et organisation urbaine

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This document describes the reference framework of the theme 10 ''greenhouse effect, transport policies and urban organization'' which is a part of the urban transports interface. It presents the specific actions realized by the theme 10 for a future integration in theme 1, 5 and 8. (A.L.B.)

  2. Efficacy of Zingiber officinale ethanol extract on the viability, embryogenesis and infectivity of Toxocara canis eggs.

    Science.gov (United States)

    El-Sayed, Nagwa Mostafa

    2017-12-01

    This study evaluated the effect of Zingiber officinal e ( Z. officinal e) ethanol extract on the viability, embryogenesis and infectivity Toxocara canis ( T. canis ) eggs. It was carried out both in vitro and in vivo. In the in vitro experiment, unembryonated T. canis eggs were incubated with 25, 50 and 100 mg/mL Z. officinal e extract at 25 °C for 6, 12, and 24 h to assess the effect of Z. officinal e on their viability and for two weeks to assess the effect of Z. officinal e on their embryogenesis. In vivo experiment was performed to assess the effect of Z. officinal e on infectivity of T. canis eggs. Treated embryonated eggs by Z. officinale extract at concentrations of 25, 50 and 100 mg/mL for 24 h were inoculated into mice and their livers were examined for the presence of T. canis larvae on the 7th day after infection and for histopathological evaluation at 14th day post-infection. Z. officinal e showed a significant ovicidal activity on T. canis eggs. The best effect was observed with 100 mg/mL concentration after 24 h with an efficacy of 98.2%. However, the treated eggs by 25, 50 mg/mL of Z. officinale extract after 24 h showed ovicidal activity by 59.22 and 82.5% respectively. Moreover, this extract effectively inhibited T. canis eggs embryogenesis by 99.64% and caused their degeneration at the concentration of 100 mg/mL after 2 weeks of treatment. However, the lower concentrations, 25 and 50 mg/mL inhibited embryogenesis by 51.19 and 78.57% respectively. The effect of Z. officinal e on the infectivity T. canis eggs was proven by the reduction of larvae recovery in the livers by 35.9, 62.8 and 89.5% in mice groups inoculated by Z. officinale treated eggs at concentrations of 25, 50 and 100 mg/mL respectively. Histopathologically, the liver tissues of mice infected with Z. officinale treated eggs at the concentration of 100 mg/mL appeared healthy with slight degenerative changes of hepatocytes, opposite to that recorded in the infected mice

  3. Diagnosis of Hepatozoon canis in young dogs by cytology and PCR

    Directory of Open Access Journals (Sweden)

    Decaprariis Donato

    2011-04-01

    Full Text Available Abstract Background Hepatozoon canis is a widespread tick-borne protozoan affecting dogs. The diagnosis of H. canis infection is usually performed by cytology of blood or buffy coat smears, but this method may not be sensitive. Our study aimed to evaluate the best method to achieve a parasitological diagnosis of H. canis infection in a population of receptive young dogs, previously negative by cytology and exposed to tick infestation for one summer season. Results A total of 73 mongrel dogs and ten beagles younger than 18 months of age, living in an animal shelter in southern Italy where dogs are highly infested by Rhipicephalus sanguineus, were included in this study. In March-April 2009 and in October 2009, blood and bone marrow were sampled from each dog. Blood, buffy coat and bone marrow were examined by cytology only (at the first sampling and also by PCR for H. canis (second sampling. In March-April 2009, only one dog was positive for H. canis by cytological examination, whereas in October 2009 (after the summer season, the overall incidence of H. canis infection by cytological examinations was 43.9%. Molecular tests carried out on samples taken in October 2009 showed a considerably higher number of dogs positive by PCR (from 27.7% up to 51.2% on skin and buffy coat tissues, respectively, with an overall positivity of 57.8%. All animals, but one, which were positive by cytology were also PCR-positive. PCR on blood or buffy coat detected the highest number of H. canis-positive dogs displaying a sensitivity of 85.7% for both tissues that increased up to 98% when used in parallel. Twenty-six (74.8% out of the 28 H. canis-positive dogs presented hematological abnormalities, eosinophilia being the commonest alteration observed. Conclusions The results suggest that PCR on buffy coat and blood is the best diagnostic assay for detecting H. canis infection in dogs, although when PCR is not available, cytology on buffy coat should be preferred to

  4. Diagnosis of Hepatozoon canis in young dogs by cytology and PCR

    Science.gov (United States)

    2011-01-01

    Background Hepatozoon canis is a widespread tick-borne protozoan affecting dogs. The diagnosis of H. canis infection is usually performed by cytology of blood or buffy coat smears, but this method may not be sensitive. Our study aimed to evaluate the best method to achieve a parasitological diagnosis of H. canis infection in a population of receptive young dogs, previously negative by cytology and exposed to tick infestation for one summer season. Results A total of 73 mongrel dogs and ten beagles younger than 18 months of age, living in an animal shelter in southern Italy where dogs are highly infested by Rhipicephalus sanguineus, were included in this study. In March-April 2009 and in October 2009, blood and bone marrow were sampled from each dog. Blood, buffy coat and bone marrow were examined by cytology only (at the first sampling) and also by PCR for H. canis (second sampling). In March-April 2009, only one dog was positive for H. canis by cytological examination, whereas in October 2009 (after the summer season), the overall incidence of H. canis infection by cytological examinations was 43.9%. Molecular tests carried out on samples taken in October 2009 showed a considerably higher number of dogs positive by PCR (from 27.7% up to 51.2% on skin and buffy coat tissues, respectively), with an overall positivity of 57.8%. All animals, but one, which were positive by cytology were also PCR-positive. PCR on blood or buffy coat detected the highest number of H. canis-positive dogs displaying a sensitivity of 85.7% for both tissues that increased up to 98% when used in parallel. Twenty-six (74.8%) out of the 28 H. canis-positive dogs presented hematological abnormalities, eosinophilia being the commonest alteration observed. Conclusions The results suggest that PCR on buffy coat and blood is the best diagnostic assay for detecting H. canis infection in dogs, although when PCR is not available, cytology on buffy coat should be preferred to blood smear evaluation

  5. A new PCR assay for the detection and differentiation of Babesia canis and Babesia vogeli.

    Science.gov (United States)

    Annoscia, Giada; Latrofa, Maria Stefania; Cantacessi, Cinzia; Olivieri, Emanuela; Manfredi, Maria Teresa; Dantas-Torres, Filipe; Otranto, Domenico

    2017-10-01

    Babesia spp. are globally distributed tick-borne protozoan parasites that infect the red blood cells of a wide range of vertebrate hosts, including humans. Diagnosis of babesiosis is often impeded by the transient presence of the parasites in peripheral blood, as well as by their pleomorphic nature. Given the reports of an expanding and, in some cases, sympatric geographical distribution of Babesia canis and Babesia vogeli in dogs and associated vectors, in Europe, the development of time-efficient and cost-effective diagnostic tools to detect and differentiate these two species is warranted. In this study, we designed and developed a novel polymerase chain reaction (PCR) assay targeting the parasite cytochrome c oxidase subunit 1 (cox1) gene, for the simultaneous detection and differentiation of B. canis and B. vogeli. The analytical sensitivity of the PCR was evaluated using serial dilutions of genomic DNA extracted from individual and artificially mixed canine blood samples infected by B. canis (3×10 2 infected erythrocytes/ml, ie/ml) and B. vogeli (2.1×10 1 ie/ml). The analytical specificity of the assay was assessed using blood samples positive for Hepatozoon canis, Ehrlichia canis, Anaplasma platys, Babesia microti, Babesia rossi and Theileria annae (syn. Babesia vulpes). The clinical specificity of the PCR assay was evaluated on 147 blood samples from dogs and 128 tick specimens (Dermacentor reticulatus and Rhipicephalus sanguineus sensu lato). Species-specific bands of the expected sizes (i.e., 750bp for B. canis and 450bp for B. vogeli), and two bands in the mixed blood samples were obtained. The PCR assay developed herein detected a low number of infected erythrocytes (i.e., 3×10 -2 B. canis, 2.1×10 -2 B. vogeli ie/ml). Of the 147 blood samples, nine (6.1%) were positive for B. canis and six (4.1%) for B. vogeli, whereas only one tick (D. reticulatus) was positive for B. canis. This PCR assay represents a rapid and reliable tool for the diagnosis of B

  6. Diagnosis of Hepatozoon canis in young dogs by cytology and PCR.

    Science.gov (United States)

    Otranto, Domenico; Dantas-Torres, Filipe; Weigl, Stefania; Latrofa, Maria Stefania; Stanneck, Dorothee; Decaprariis, Donato; Capelli, Gioia; Baneth, Gad

    2011-04-13

    Hepatozoon canis is a widespread tick-borne protozoan affecting dogs. The diagnosis of H. canis infection is usually performed by cytology of blood or buffy coat smears, but this method may not be sensitive. Our study aimed to evaluate the best method to achieve a parasitological diagnosis of H. canis infection in a population of receptive young dogs, previously negative by cytology and exposed to tick infestation for one summer season. A total of 73 mongrel dogs and ten beagles younger than 18 months of age, living in an animal shelter in southern Italy where dogs are highly infested by Rhipicephalus sanguineus, were included in this study. In March-April 2009 and in October 2009, blood and bone marrow were sampled from each dog. Blood, buffy coat and bone marrow were examined by cytology only (at the first sampling) and also by PCR for H. canis (second sampling). In March-April 2009, only one dog was positive for H. canis by cytological examination, whereas in October 2009 (after the summer season), the overall incidence of H. canis infection by cytological examinations was 43.9%. Molecular tests carried out on samples taken in October 2009 showed a considerably higher number of dogs positive by PCR (from 27.7% up to 51.2% on skin and buffy coat tissues, respectively), with an overall positivity of 57.8%. All animals, but one, which were positive by cytology were also PCR-positive. PCR on blood or buffy coat detected the highest number of H. canis-positive dogs displaying a sensitivity of 85.7% for both tissues that increased up to 98% when used in parallel. Twenty-six (74.8%) out of the 28 H. canis-positive dogs presented hematological abnormalities, eosinophilia being the commonest alteration observed. The results suggest that PCR on buffy coat and blood is the best diagnostic assay for detecting H. canis infection in dogs, although when PCR is not available, cytology on buffy coat should be preferred to blood smear evaluation. This study has also demonstrated

  7. Light in Architecture as an Inspired Theme

    Science.gov (United States)

    Dębowska, Danuta

    2017-10-01

    The theme of the article is to highlight the important role of natural light in architecture. Natural light, or solar radiation absorbed by our sense of sight was a strong inspiration from ancient times. Originally constituted as a link between heaven and earth. It played a major role in shaping the places of worship, such as even Stonehenge. In the church architecture it was and still is the guiding element, the main matrix around builds an architecture narrative. Over the centuries, the study of the role of light in architecture, and in fact chiaroscuro, led to the culmination of solutions full of fantasy and “quirks” in the Baroque era (Baroque with Italian barocco: strange, exaggerated). Enamored of carved body and the use of multipurpose ornament topped was the discovery of a concave-convex façade parete ondulata created by Francesca Borrromini. Conscious manipulation of light developed, at the time, to a maximum of the art illusion and optical illusions in architectural buildings. Changing the perception of privilege in detail and introduce the principle of “beauty comes from functionality” in times of modernism meant that architects started to look for the most extreme simplicity. Sincerity of forms, and thus the lack of ornamentation, however, did not result in a lack of interest in light. On the contrary, the light became detail, eye-catching element against a smooth surface of the wall. The continuation of this concept of creating a strong password exposing Mies van der Rohe’s „less is more” took over the architecture created in the current minimalism. To minimize the detail with the introduction of large glazing resulted in strengthening the effect of opening the flow of light and penetrating the interior to the exterior. The principle of deep reflection on the light is certainly used in the design of monumental buildings, such as galleries, museums. It could be used more widely in the common architecture, noting the heritage and

  8. THE EGIPTIAN THEME IN THE WORK OF A. P. CHEKHOV

    Directory of Open Access Journals (Sweden)

    Elena L. Suzryukova

    2017-06-01

    Full Text Available The present article deals with the biblical themes of the escape to Egypt and the exodus from Egypt as depicted in the narrative and the epistolary fiction of the writer. In the letters of A. P. Chekhov Egypt is associated with favorable living conditions for those who suffer from lung diseases. Besides, the author was taken with the idea of visiting this country, but his dream did not come true. In the early Anton Chekhov’s short story “Holiday” [“Prazdnichnye”] the motif of the escape to Egypt is put in a humorous context. The same motif along with the motif of the Exodus from Egypt was used by the author in the story “Men” [“Muzhiki”]. Both in the letters and in the stories and novels of the writer, the motif of the escape to Egypt keeps the Christian semantics of Salvation. In the short story “Misery” [“Toska”] Egypt is implicitly present — it is linked with the epigraph to the text, the basis for which is a spiritual verse “Weeping of Joseph, when his brothers sold him in Egypt”. The motif of being in Egyptian slavery — another aspect of the theme in question — translates into a number of works and letters of A. P. Chekhov. This motif is associated with the meanings of freedom and grief. The article reveals and analyses the antinomic images of St. Mary of Egypt and Cleopatra of Egypt. Besides, it explores semantic realization of the set expression “plague of Egypt”.

  9. Object permanence in domestic dogs (Canis lupus familiaris) and gray wolves (Canis lupus).

    Science.gov (United States)

    Fiset, Sylvain; Plourde, Vickie

    2013-05-01

    Recent evidence suggests that phylogenetic constraints exerted on dogs by the process of domestication have altered the ability of dogs to represent the physical world and the displacement of objects. In this study, invisible (Experiment 1) and visible (Experiment 2) displacement problems were administered to determine whether domestic dogs' and gray wolves' cognitive capacities to infer the position of a hidden object differ. The results revealed that adult dogs and wolves performed similarly in searching for disappearing objects: Both species succeeded the visible displacement tasks but failed the invisible displacement problems. We conclude that physical cognition for finding hidden objects in domestic dogs and gray wolves is alike and unrelated to the process of domestication.

  10. First molecular evidence of Hepatozoon canis infection in red foxes and golden jackals from Hungary.

    Science.gov (United States)

    Farkas, Róbert; Solymosi, Norbert; Takács, Nóra; Hornyák, Ákos; Hornok, Sándor; Nachum-Biala, Yaarit; Baneth, Gad

    2014-07-02

    Recently, Hepatozoon canis infection has been detected among shepherd, hunting and stray dogs in the southern part of Hungary, which is considered to be free of Rhipicephalus sanguineus sensu lato and close to the border with Croatia. The aim of this study was to acquire information on the possibility that red foxes and/or golden jackals could play a role in the appearance and spread of H. canis in Hungary. A conventional PCR was used to amplify a 666 bp long fragment of the Hepatozoon 18S rRNA gene from blood samples collected from 334 foxes shot in 231 locations in 16 counties and 15 golden jackals shot in 9 locations in two southwestern counties close to Croatia. A second PCR assay was performed in some of the samples positive by the first PCR to amplify a larger segment (approximately 1500 bp) of the 18S rRNA gene of Hepatozoon spp. for further phylogenetic analysis. Hepatozoon infection was detected in canids shot in 30 locations and 9 counties. Altogether 26 foxes (8.0%, 95% CI: 5-11%) and 9 jackals (60%, 95% CI: 33-81%) were PCR positive. Hepatozoon canis sequences were obtained from 12 foxes and 7 jackals. DNA sequences from 16 animals were 99-100% similar to H. canis from Croatian foxes or dogs while two of the sequences were 99% similar to an Italian fox. Half (13/26) of the infected red foxes and all golden jackals were shot in the two southwestern counties. This is the first report on molecular evidence of H. canis in red foxes (Vulpes vulpes) and golden jackals (Canis aureus) from Hungary, which is considered free from the tick vector of H. canis, R. sanguineus. Although no R. sanguineus sensu lato had been found on infected or non-infected wild canids, the detection of authochnous canine hepatozoonosis in Hungary might imply that the range of R. sanguineus sensu lato has reached this country.

  11. Digital gene expression analysis of Microsporum canis exposed to berberine chloride.

    Directory of Open Access Journals (Sweden)

    Chen-Wen Xiao

    Full Text Available Berberine, a natural isoquinoline alkaloid of many medicinal herbs, has an active function against a variety of microbial infections including Microsporum canis (M. canis. However, the underlying mechanisms are poorly understood. To study the effect of berberine chloride on M. canis infection, a Digital Gene Expression (DGE tag profiling was constructed and a transcriptome analysis of the M. canis cellular responses upon berberine treatment was performed. Illumina/Hisseq sequencing technique was used to generate the data of gene expression profile, and the following enrichment analysis of Gene Ontology (GO and Pathway function were conducted based on the data of transcriptome. The results of DGE showed that there were 8476945, 14256722, 7708575, 5669955, 6565513 and 9303468 tags respectively, which was obtained from M. canis incubated with berberine or control DMSO. 8,783 genes were totally mapped, and 1,890 genes have shown significant changes between the two groups. 1,030 genes were up-regulated and 860 genes were down-regulated (P<0.05 in berberine treated group compared to the control group. Besides, twenty-three GO terms were identified by Gene Ontology functional enrichment analysis, such as calcium-transporting ATPase activity, 2-oxoglutarate metabolic process, valine catabolic process, peroxisome and unfolded protein binding. Pathway significant enrichment analysis indicated 6 signaling pathways that are significant, including steroid biosynthesis, steroid hormone biosynthesis, Parkinson's disease, 2,4-Dichlorobenzoate degradation, and tropane, piperidine and Isoquinoline alkaloid biosynthesis. Among these, eleven selected genes were further verified by qRT-PCR. Our findings provide a comprehensive view on the gene expression profile of M. canis upon berberine treatment, and shed light on its complicated effects on M. canis.

  12. Content Themes of Alcohol Advertising in U.S. Television-Latent Class Analysis.

    Science.gov (United States)

    Morgenstern, Matthis; Schoeppe, Franziska; Campbell, Julie; Braam, Marloes W G; Stoolmiller, Michael; Sargent, James D

    2015-09-01

    There is little alcohol research that reports on the thematic contents of contemporary alcohol advertisements in U.S. television. Studies of alcohol ads from 2 decades ago did not identify "Partying" as a social theme. Aim of this study was to describe and classify alcohol advertisements aired in national television in terms of contents, airing times, and channel placements and to identify different marketing strategies of alcohol brands. Content analysis of all ads from the top 20 U.S. beer and spirit brands aired between July 2009 and June 2011. These were 581 unique alcohol ads accounting for 272,828 (78%) national television airings. Ads were coded according to predefined definitions of 13 content areas. A latent class analysis (LCA) was conducted to define content cluster themes and determine alcoholic brands that were more likely to exploit these themes. About half of the advertisements (46%) were aired between 3 am and 8 pm, and the majority were placed either in Entertainment (40%) and Sports (38%) channels. Beer ads comprised 64% of the sample, with significant variation in airing times and channels between types of products and brands. LCA revealed 5 content classes that exploited the "Partying," "Quality," "Sports," "Manly," and "Relax" themes. The partying class, indicative of ad messages surrounding partying, love, and sex, was the dominant theme comprising 42% of all advertisements. Ads for alcopops, flavored spirits, and liqueur were more likely to belong to the party class, but there were also some beer brands (Corona, Heineken) where more than 67% of ads exploited this theme. This is the first analysis to identify a partying theme to contemporary alcohol advertising. Future analyses can now determine whether exposure to that or other themes predicts alcohol misuse among youth audiences. Copyright © 2015 by the Research Society on Alcoholism.

  13. Content Themes of Alcohol Advertising in US Television — Latent Class Analysis

    Science.gov (United States)

    Morgenstern, Matthis; Schoeppe, Franziska; Campbell, Julie; Braam, Marloes W.G.; Stoolmiller, Michael; Sargent, James D.

    2015-01-01

    Background There is little alcohol research that reports on the thematic contents of contemporary alcohol advertisements in US television. Studies of alcohol ads from two decades ago did not identify “partying” as a social theme. Aim of the present study was to describe and classify alcohol advertisements aired in national television in terms of contents, airing times, and channel placements and to identify different marketing strategies of alcohol brands. Methods Content analysis of all ads from the top 20 US beer and spirit brands aired between July 2009 and June 2011. These were 581 unique alcohol ads accounting for 272,828 (78%) national television airings. Ads were coded according to predefined definitions of 13 content areas. A latent class analysis (LCA) was conducted to define content cluster themes and determine alcoholic brands that were more likely to exploit these themes. Results About half of the advertisements (46%) were aired between 3am and 8pm, and the majority were placed either in Entertainment (40%) and Sports (38%) channels. Beer ads comprised 64% of the sample, with significant variation in airing times and channels between types of products and brands. LCA revealed five content classes that exploited the “Partying”, “Quality”, “Sports”, “Manly”, and “Relax” themes. The partying class, indicative of ad messages surrounding partying, love and sex, was the dominant theme, comprising 42% of all advertisements. Ads for alcopops, flavored spirits, and liqueur were more likely to belong to the party class, but there were also some beer brands (Corona, Heineken) where more than 67% of ads exploited this theme. Conclusions This is the first analysis to identify a partying theme to contemporary alcohol advertising. Future analyses can now determine whether exposure to that or other themes predicts alcohol misuse among youth audiences. PMID:26207317

  14. Themes, scenes, and taste in the history of Japanese garden art

    NARCIS (Netherlands)

    Kuitert, W.

    1988-01-01

    The present study deals - in its three parts - with three fragments of the garden history of Japan. It reveals how the meaning a garden had to the people of its time was significantly different in all of these periods.

    Part one, titled "Themes", deals with the later Heian period,

  15. Variations on a theme by Kepler

    CERN Document Server

    Guillemin, Victor W

    2006-01-01

    This book is based on the Colloquium Lectures presented by Shlomo Sternberg in 1990. The authors delve into the mysterious role that groups, especially Lie groups, play in revealing the laws of nature by focusing on the familiar example of Kepler motion: the motion of a planet under the attraction of the sun according to Kepler's laws. Newton realized that Kepler's second law-that equal areas are swept out in equal times-has to do with the fact that the force is directed radially to the sun. Kepler's second law is really the assertion of the conservation of angular momentum, reflecting the rot

  16. The oxytocin receptor gene, an integral piece of the evolution of Canis familaris from Canis lupus

    Directory of Open Access Journals (Sweden)

    Jessica Lee Oliva

    2016-07-01

    Full Text Available Previous research in canids has revealed both group (dog versus wolf and individual differences in object choice task (OCT performance. These differences might be explained by variation in the oxytocin receptor (OXTR gene, as intranasally administered oxytocin has recently been shown to improve performance on this task by domestic dogs. This study looked at microsatellites at various distances from the OXTR gene to determine whether there was an association between this gene and: i species (dog/wolf and ii good versus bad OCT performers. Ten primer sets were designed to amplify 10 microsatellites that were identified at various distances from the canine OXTR gene. We used 94 (52 males, 42 females blood samples from shelter dogs, 75 (33 males, 42 females saliva samples from pet dogs and 12 (6 males, 6 females captive wolf saliva samples to carry out our analyses. Significant species differences were found in the two markers closest to the OXTR gene, suggesting that this gene may have played an important part in the domestic dogs’ evolution from the wolf. However, no significant, meaningful differences were found in microsatellites between good versus bad OCT performers, which suggests that other factors, such as different training and socialisation experiences, probably impacted task performance

  17. Detecção molecular de Ehrlichia canis e Babesia canis vogeli em Rhipicephalus sanguineus sensu lato de carrapatos em Cuba

    Directory of Open Access Journals (Sweden)

    Maylin Gonzalez Navarrete

    2016-12-01

    Full Text Available Os carrapatos (Acari: Ixodidae são de importância médica e veterinária relevantes em todo o mundo por causa da variedade de agentes patogênicos que podem transmitir. No presente trabalho, foi realizada uma pesquisa para identificar Babesia spp. e Ehrlichia spp. em carrapatos coletados de cães de Cuba. Foram coletados 431 carrapatos de 378 cães, tendo sido identificados como pertencentes às espécies de Ripicephalus sanguineus sensu lato (s. 1. O DNA genômico foi extraído com protocolo usando fenol/clorofórmio. Os carrapatos foram organizados em “pools” e o DNA extraído foi testado pela reação em cadeia da polimerase (nPCR para amplificar 398 pares de bases (pb do DNA ribossômico 16S (rDNA de Ehrlichia canis e PCR para amplificar aproximadamente 560 pb do DNA ribossômico 18S (rDNA. Dos 49 pools testados, 8,16% (n = 4/49 foram positivos para o E. canis por nPCR visando o gene do 16S rDNA e apenas um pool (n = 1/49; 2,04% foi positivo para o gene 18S rDNA para Babesia canis. As quatro sequências obtidas para o fragmento de 16S rDNA foram idênticas entre si e resultaram em 100% de identidade com E. canis de diferentes países. A sequência obtida do gene do 18S rDNA para Babesia spp. apresentou semelhança de 100% com Babesia canis vogeli quando comparada às sequências depositadas no Genbank. Esta foi a primeira detecção molecular desses agentes no carrapato R. sanguineus s. l. em Cuba.

  18. [Toxocara canis: frequency of detection and extent of infection in bitches of various breeds and husbandry and their litters in South Germany].

    Science.gov (United States)

    Gothe, R; Reichler, I

    1990-06-01

    Epidemiological investigations of 100 randomly selected dog families in Southern Germany revealed eggs of Toxocara canis in 67% of the litters and in 45% of the bitches. Eggs were isolated from litters at the earliest on the 16th day and at the latest on the 55th day post partum, in bitches on the 19th and 60th day respectively after giving birth. With regard to the coproscopically detected frequency of T. canis eggs in separate analyses of the dog breeds, only slight differences were found; very large breeds, however, revealed substantially a greater excretion extent. An evaluation exclusively concerned with the way the dog families were kept showed a higher percentage of 76.2% for litters from kennels than among those kept indoors, which amounted only to 51.4%. Relating the excretion extent to the number of additionally kept fully grown dogs/breeder, evident correlations were found, as the number of positive litters increased together with the number of additionally kept adult dogs/dog family. In comparison with dog families exclusively kept indoors, kennel dogs had a higher extent of excretion. Regarding the number of litters born per year/stock compared with excretion extent a positive correlation could be drawn for dog families up to 5 litters/year only. The number of litters born per bitch had no influence on the excretion extent of the litters. Correlations between the number of anthelminthic treatments of litters or bitches during and following pregnancy and the excretion extent of T. canis could not be deduced. The litters remained positive even after 5-8 treatments during the investigation period of 9 weeks and positive results continued after the puppies had been sold.(ABSTRACT TRUNCATED AT 250 WORDS)

  19. [Dog (Canis familiaris) infectivity to Lutzomyia youngi in Trujillo, Venezuela].

    Science.gov (United States)

    Hernández, Dalila; Rojas, Elina; Scorza, José Vicente; Jorquera, Alicia

    2006-10-01

    In Trujillo, Venezuela the prevalence for American tegumentary leishmaniasis (ATL) is 38 per 100,000 inhabitants. In a periurban, rural settlement of the capital city Trujillo, we studied the potential capability of the domestic dog (Canis familiaris) as a source of infection for Lutzomyia youngi, a phlebotomine sand fly species abundant in the study area and whose domestic vectorial activity has been proven. Dogs with dermal lesions suggestive of ATL and parasitological confirmation of infection, were selected for xenodiagnosis by allowing sylvatic phlebotomines from a ATL free area, to feed ad libitum over each animal's entire body surface. The insects' intestinal tracts were dissected 5 days after the blood meal in order to look for flagellate forms. When these were found, parasitological identification was performed by the multiplex-PCR technique. Four hundred and fifty five sand flies engorged over two dogs in three different assays; promastigotes were found in 4 (0.88%) of the specimens on only one occasion. PCR identified DNA of the Leishmania Viannia subgenus. The household dog has the potential of being a domestic risk factor in the ATL transmission cycle.

  20. Accounts of famous North American Wolves, Canis lupus

    Science.gov (United States)

    Gipson, P.S.; Ballard, W.B.

    1998-01-01

    We examined historical accounts of 59 famous North American Gray Wolves (Canis lupus) reported during the late nineteenth and early twentieth centuries. Fifty of the 59 wolves were purportedly responsible for great losses to livestock, but for 29 reports, evidence suggested that ???2 wolves (e.g., packs) were responsible for the purported kills; in addition, seven wolves had traits that suggested they were hybrids with dogs, and one wolf was probably not from the area where the damage purportedly occurred. Reported livestock losses, especially to Longhorn cattle, from individual wolves appeared excessively high in relation to current literature. Most famous wolves were old and/or impaired from past injuries: 19 were reportedly ???10 years old, 18 had mutilated feet from past trap injuries, and one had a partially severed trachea from being in a snare. Old age and physical impairments probably contributed to livestock depredations by some famous wolves. Several accounts appeared exaggerated, inaccurate, or fabricated. Historical accounts of famous wolves should be interpreted with great caution, especially when considering impacts of wolf reintroductions or when modeling predation rates.

  1. Helminth parasites in the endangered Ethiopian wolf, Canis simensis.

    Science.gov (United States)

    van Kesteren, F; Piggott, K J; Bengui, T; Kubri, S B; Mastin, A; Sillero-Zubiri, C; Paris, M; Millar, R P; Macdonald, D W; Shiferaw, F; Craig, P S

    2015-07-01

    Ethiopian wolves, Canis simensis, are an endangered carnivore endemic to the Ethiopian highlands. Although previous studies have focused on aspects of Ethiopian wolf biology, including diet, territoriality, reproduction and infectious diseases such as rabies, little is known of their helminth parasites. In the current study, faecal samples were collected from 94 wild Ethiopian wolves in the Bale Mountains of southern Ethiopia, between August 2008 and February 2010, and were screened for the presence of helminth eggs using a semi-quantitative volumetric dilution method with microscopy. We found that 66 of the 94 faecal samples (70.2%) contained eggs from at least one group of helminths, including Capillaria, Toxocara, Trichuris, ancylostomatids, Hymenolepis and taeniids. Eggs of Capillaria sp. were found most commonly, followed by Trichuris sp., ancylostomatid species and Toxocara species. Three samples contained Hymenolepis sp. eggs, which were likely artefacts from ingested prey species. Four samples contained taeniid eggs, one of which was copro-polymerase chain reaction (copro-PCR) and sequence positive for Echinococcus granulosus, suggesting a spillover from a domestic parasite cycle into this wildlife species. Associations between presence/absence of Capillaria, Toxocara and Trichuris eggs were found; and egg burdens of Toxocara and ancylostomatids were found to be associated with geographical location and sampling season.

  2. Where and How Wolves (Canis lupus Kill Beavers (Castor canadensis.

    Directory of Open Access Journals (Sweden)

    Thomas D Gable

    Full Text Available Beavers (Castor canadensis can be a significant prey item for wolves (Canis lupus in boreal ecosystems due to their abundance and vulnerability on land. How wolves hunt beavers in these systems is largely unknown, however, because observing predation is challenging. We inferred how wolves hunt beavers by identifying kill sites using clusters of locations from GPS-collared wolves in Voyageurs National Park, Minnesota. We identified 22 sites where wolves from 4 different packs killed beavers. We classified these kill sites into 8 categories based on the beaver-habitat type near which each kill occurred. Seasonal variation existed in types of kill sites as 7 of 12 (58% kills in the spring occurred at sites below dams and on shorelines, and 8 of 10 (80% kills in the fall occurred near feeding trails and canals. From these kill sites we deduced that the typical hunting strategy has 3 components: 1 waiting near areas of high beaver use (e.g., feeding trails until a beaver comes near shore or ashore, 2 using vegetation, the dam, or other habitat features for concealment, and 3 immediately attacking the beaver, or ambushing the beaver by cutting off access to water. By identifying kill sites and inferring hunting behavior we have provided the most complete description available of how and where wolves hunt and kill beavers.

  3. Bibliography of Papers Published in the Journal Migration Themes / Migration and Ethnic Themes (1985 – 2014

    Directory of Open Access Journals (Sweden)

    Sanja Klempić Bogadi

    2015-04-01

    Full Text Available To mark the 30th anniversary of the publication of the journal Migracijske i etničke teme / Migration and Ethnic Themes (up to 2000 it was issued under the title Migration Themes: a Journal for Migration and Ethic Studies, we consider it important and necessary to provide an overview in one place of the papers published in the journal from its first issue in 1985 to the last one in 2014. The most important aim of this bibliography is to introduce the scientific and professional public, especially new researchers, to the topics covered by this journal as well as to enable easier access to the journal and its more convenient use. The bibliography is selective. It includes scientific papers (the original scientific paper, preliminary communication and review paper professional papers, conference papers, panel discussions, discussions, reviews and bibliographies, while reviews of books and periodicals (i.e. papers from the sections Books, Reviews, From Foreign Periodicals and Movie as well as Introductions, Memories, In Memoriam and Conference Reviews (from the sections Reviews and Conferences are not included. All the papers are available at Hrčak – Portal of Scientific Journals of Croatia. Given that all kinds of papers are not included, but primarily in order to provide its better examination and insight into published papers according to specific topics and dealing with various issues, as well as to provide easier and faster access, we have decided to make a subject bibliography, and not a chronological one. (On the occasion of the 10th anniversary of the Migration Themes journal, the chronological bibliography prepared by Josip Kumper was published in the 3-4/1994 issue. From the very first issue, migration and ethnicity have been the main themes represented in the journal, but the emphasis on the basic issues in previous papers, which involved external migration, internal migration, emigration and minorities/nationalities, have gradually

  4. Themes of nanoscience for the introductory physics course

    International Nuclear Information System (INIS)

    Planinsic, Gorazd; Lindell, Anssi; Remskar, Maja

    2009-01-01

    We present three experimental themes and one discussion theme that proved to be suitable for introducing nanoscience through topics that can be integrated into the existing introductory physics or teacher training courses. The experimental themes include two teaching models of an atomic force microscope (AFM) and an experiment with an elastic optical grating. They are all based on simple experiments that give also quantitative results and can be explained using basic physics theory.

  5. Themes of nanoscience for the introductory physics course

    Energy Technology Data Exchange (ETDEWEB)

    Planinsic, Gorazd [Faculty for Mathematics and Physics, University of Ljubljana (Slovenia); Lindell, Anssi [Department of Teacher Education, University of Jyvaskyla (Finland); Remskar, Maja [Josef Stefan Institute, Ljubljana (Slovenia)

    2009-07-15

    We present three experimental themes and one discussion theme that proved to be suitable for introducing nanoscience through topics that can be integrated into the existing introductory physics or teacher training courses. The experimental themes include two teaching models of an atomic force microscope (AFM) and an experiment with an elastic optical grating. They are all based on simple experiments that give also quantitative results and can be explained using basic physics theory.

  6. New Themes in Physics Teaching: A personal retrospective

    OpenAIRE

    Dykstra, Dewey

    2012-01-01

    For a little over 40 years, what we label now, physics education research, has been conducted.  As a result, new themes in the research in physics learning and in physics education have emerged.  Some of these themes are cognitivism, qualitative research, learning as construction of knowledge, epistemological underpinnings that are not realist, student understanding-driven pedagogies, and scholarship in fields outside physics.  These themes have arisen in minds of our colleagues, who focus th...

  7. Detection and molecular identification of Hepatozoon canis and Babesia vogeli from domestic dogs in Palestine.

    Science.gov (United States)

    Azmi, Kifaya; Al-Jawabreh, Amer; Nasereddin, Abedelmajeed; Abdelkader, Ahmad; Zaid, Taher; Ereqat, Suheir; Sawalha, Samer S; Baneth, Gad; Abdeen, Ziad

    2017-04-01

    Dogs serve as hosts for a great number of parasites, which may affect their health and wellbeing. This study aimed to observe tick borne pathogens in dogs from Palestine including Hepatozoon canis and Babesia species. The prevalence of both H. canis and Babesia species infections in apparently healthy dogs, from ten districts of the West Bank was surveyed. DNA was extracted from blood samples obtained from dogs (n = 362) and ticks (n = 213) collected from dogs (n = 77). A primer set that amplifies a partial sequence of the Babesia and Hepatozoon 18S rRNA gene was used for PCR and the DNA sequences of the PCR products of all samples were determined. Twenty-nine (8·0%) of the dogs were found infected including 20 with H. canis (5·5%), seven with Babesia vogeli (1·9%) and two with undefined Babesia spp. (0·6%). Twelve Rhipicephalus sanguineus s.l ticks were pathogen-positive, including ten with H. canis (4·7%), one with B. vogeli (0·5%), and one with Hepatozoon felis (0·5%). The results indicated that a wide range of tick borne pathogens is circulating in the canine population in the surveyed region. This study is the first report on the prevalence of H. canis, B. vogeli and Babesia spp. in dogs in Palestine and its results will assist in the management of diseases associated with these blood parasites.

  8. Trichoderma virens as a biocontrol of Toxocara canis: In vivo evaluation.

    Science.gov (United States)

    de Souza Maia Filho, Fernando; da Silva Fonseca, Anelise Oliveira; Persici, Beatriz Maroneze; de Souza Silveira, Julia; Braga, Caroline Quintana; Pötter, Luciana; de Avila Botton, Sônia; Brayer Pereira, Daniela Isabel

    Microorganisms have been widely studied as biological control agents of parasites of medical and veterinary importance. Coprophagous arthropods, bacteria and fungi are among the different organisms evaluated as potential biological control agents. Nematophagous fungi capture and digest the free forms of nematodes in the soil. Due to its zoonotic potential, Toxocara canis have been brought to the attention of researchers. The aim of the present study was to determine whether the administration of embryonated T. canis eggs exposed to the nematophagous fungus Trichoderma virens reduces parasite infection in experimental animals. Embryonated T. canis eggs were exposed to T. virens mycelium for 15 days at 25°C. Subsequently, 100 fungus-exposed eggs were orally administered to 20 Swiss mice. As a positive control, another 20 mice received 100 embryonated eggs that were not exposed to the fungus. After 48h, the animals were killed, and heart, lungs and liver were harvested for the recovery of larvae. The organs of the animals that received embryonated T. canis eggs exposed to the fungus showed a lower mean larval recovery when compared with the animals that received embryonated eggs without fungus exposure (p<0.05). The exposure of T. canis eggs to T. virens reduces the experimental infection, demonstrating the potential of this nematophagous fungus as a biocontrol agent. Copyright © 2016 Asociación Española de Micología. Publicado por Elsevier España, S.L.U. All rights reserved.

  9. Babesia canis vogeli infection in dogs and ticks in the semiarid region of Pernambuco, Brazil

    Directory of Open Access Journals (Sweden)

    Andreina C. Araujo

    2015-05-01

    Full Text Available Abstract:This study aimed to report the prevalence of Babesia canis vogeli in dogs and ticks in the urban and rural areas of Petrolina, Pernambuco. Serum and peripheral blood samples of 404 dogs were tested by indirect immunofluorescence assay (IFA and by blood smears, respectively. The presence of tick infestation was evaluated, and some specimens were submitted to DNA amplification by polymerase chain reaction (PCR. The presence of antibodies anti-B. canis vogeli was determinate in 57.9% (234/404 of dogs. The direct detection of Babesia spp was obtained in 0.5% (2/404 dogs by visualization of intraerythrocytic forms. Infestation by Rhipicephalus sanguineus sensu lato was observed in 54.5% (220/404 of dogs in both urban and rural areas. DNA of Babesia canis vogeli were obtained by PCR in 6% individual (3/50 and 8.7% of pool of ticks (7/80. The risk factors for the presence of anti-B. canis vogeli antibodies, as determined through the application of logistic regression models (P<0.05, were the following: medium breed size variables (P<0.001; contact with areas of forest (P=0.021; and access on the street (P=0.046. This study describes, for the first time, the confirmation of infection of B. canis vogeli in dogs and ticks in the semiarid region of Pernambuco, Brazil.

  10. Evidence of morphine like substance and μ-opioid receptor expression in Toxacara canis (Nematoda: Ascaridae).

    Science.gov (United States)

    Golabi, Mostafa; Naem, Soraya; Imani, Mehdi; Dalirezh, Nowruz

    2016-01-01

    Toxocara canis (Nematoda: Ascaridae) is an intestinal nematode parasite of dogs, which can also cause disease in humans. Transmission to humans usually occurs because of direct contact with T. canis eggs present in soil contaminated with the feces of infected dogs. This nematode has extraordinary abilities to survive for many years in different tissues of vertebrates, and develop to maturity in the intestinal tract of its definitive host. Survival of parasitic nematodes within a host requires immune evasion using complicated pathways. Morphine-like substance, as well as opioids, which are known as down regulating agents, can modulate both innate and acquired immune responses, and let the parasite survives in their hosts. In the present study, we aimed to find evidences of morphine-like substance and µ-opiate receptor expression in T. canis , using high performance liquid chromatography (HPLC) and reverse transcription polymerase chain reaction (RT-PCR). The results indicated that T. canis produced morphine-like substances at the level of 2.31± 0.26 ng g -1 wet weight, and expressed µ-opiate receptor as in expected size of 441 bp. According to our findings, it was concluded that T. canis , benefits using morphine-like substance to modulate host immunity.

  11. Molecular cloning and characterization of arginine kinase gene of Toxocara canis.

    Science.gov (United States)

    Sahu, Shivani; Samanta, S; Harish, D R; Sudhakar, N R; Raina, O K; Shantaveer, S B; Madhu, D N; Kumar, Ashok

    2015-06-01

    Toxocara canis is an important gastrointestinal nematode of dogs and also a causative agent of visceral larva migrans in humans. Arginine kinase (AK) gene is one of the important biomolecule of phosphagen kinase of T. canis which is emerging as an exciting novel diagnostic target in toxocarosis. The present study was carried out to clone and characterize AK gene of T. canis for future utilization as a diagnostic molecule. Total RNA was extracted from intact adult worms and reverse transcription was done with oligo dT primers to obtain complementary DNA (cDNA). Polymerase chain reaction (PCR) was carried out using cDNA as template with specific primers which amplified a product of 1,202 bp. The amplicon was cloned into pDrive cloning vector and clone was confirmed by colony PCR and restriction endonuclease analysis. Sequence analysis of the gene showed 99.8 and 77.9 % homology with the published AK gene of T. canis (EF015466.1) and Ascaris suum respectively. Structural analysis shown that the mature AK protein consist of 400 amino acids with a molecular wt of 45360.73 Da. Further expression studies are required for producing the recombinant protein for its evaluation in the diagnosis of T. canis infection in humans as well as in adult dogs.

  12. Molecular structure, bioinformatics analysis, expression and bioactivity of BAFF (TNF13B) in dog (Canis familiaris).

    Science.gov (United States)

    Shen, Yuefen; Wang, Shule; Ai, Hongxin; Min, Cui; Chen, Yuqing; Zhang, Shuangquan

    2011-07-15

    B cell activating factor (BAFF), belonging to the tumor necrosis factor (TNF) family, plays an important role in B cell survival, proliferation and differentiation. In the present study, we amplified the cDNA of dog (Canis familiaris) BAFF (designated doBAFF) from spleen by reverse transcription-PCR (RT-PCR) and rapid amplification of cDNA ends (RACE) strategies. The open reading frame (ORF) of doBAFF covers 879 bp encoding 292 amino acids, with a 152-aa mature peptide. The soluble mature part of doBAFF (dosBAFF) shares 91.5%, 72.1%, 96.7%, 94.0% and 91.5% identity with the human, mouse, cattle, pig and rabbit counterparts, respectively. The predicted three-dimensional (3D) structural analysis of dosBAFF analyzed by "comparative protein modeling" revealed that it was very similar to its human counterpart. Real-time quantitative PCR analysis revealed that doBAFF was mainly expressed in spleen. Two fusion proteins SUMO-dosBAFF and GFP/dosBAFF were efficiently expressed in Escherichia coli BL21 (DE3) and purified using metal chelate affinity chromatography (Ni-NTA). Laser scanning confocal microscopy analysis showed that GFP/dosBAFF could bind to the mouse splenic B-cell. In vitro, SUMO-dosBAFF and GFP/dosBAFF were able to promote the survival/proliferation of dog lymphocytes or mouse splenic B cells with/without anti-IgM. Therefore, BAFF may be a potential immunologic factor for enhancing immunological efficacy in dog. Copyright © 2011 Elsevier B.V. All rights reserved.

  13. A Framework for Mobile User Experiences in Theme Parks

    DEFF Research Database (Denmark)

    Østergaard, Claus Møller

    2013-01-01

    This paper proposes a framework, which contributes to a better theoretical understanding of mobile user experience in theme parks that is not limited to (a) personal smartphones, (b) a specific theme park, or (c) specific mobile content. Thus, the paper contributes to the field of mobile user...... experience in theme parks within HCI. The identified aspects constituting the mobile user experience in theme parks are the environmental context, the social context, the functional context, the mobile interface, and of course the mobile content. The framework is developed based on five diverse case studies...

  14. Globalisation of commercial theme parks: the walt Disney Company

    OpenAIRE

    DE GROOTE, Patrick

    2009-01-01

    The Economics Research Associates (ERA) defines a theme park as ‘A gated attraction that contains rides and/or shows in a themed environment, offers a pay-one-price ticket for its guests and attracts at least 500,000 annual visits’ (ERA, 2007). A more detailed description for theme parks is given by Philip L. Pearce (in Jafar Jafari, 2000, 124-5): ‘Theme parks are capital intensive, highly developed, self-contained recreational spaces which invariably charge admission. The entertainment, ride...

  15. Theme-Based Bidisciplinary Chemistry Laboratory Modules

    Science.gov (United States)

    Leber, Phyllis A.; Szczerbicki, Sandra K.

    1996-12-01

    A thematic approach to each of the two introductory chemistry laboratory sequences, general and organic chemistry, not only provides an element of cohesion but also stresses the role that chemistry plays as the "central science" and emphasizes the intimate link between chemistry and other science disciplines. Thus, in general chemistry the rubric "Environmental Chemistry" affords connections to the geosciences, whereas experiments on the topic of "Plant Assays" bridge organic chemistry and biology. By establishing links with other science departments, the theme-based laboratory experiments will satisfy the following multidisciplinary criteria: (i) to demonstrate the general applicability of core methodologies to the sciences, (ii) to help students relate concepts to a broader multidisciplinary context, (iii) to foster an attitude of both independence and cooperation that can transcend the teaching laboratory to the research arena, and (iv) to promote greater cooperation and interaction between the science departments. Fundamentally, this approach has the potential to impact the chemistry curriculum significantly by including student decision-making in the experimental process. Furthermore, the incorporation of GC-MS, a powerful tool for separation and identification as well as a state-of-the-art analytical technique, in the modules will enhance the introductory general and organic chemistry laboratory sequences by making them more instrument-intensive and by providing a reliable and reproducible means of obtaining quantitative analyses. Each multifaceted module has been designed to meet the following criteria: (i) a synthetic protocol including full spectral characterization of products, (ii) quantitative and statistical analyses of data, and (iii) construction of a database of results. The database will provide several concrete functions. It will foster the idea that science is a continuous incremental process building on the results of earlier experimentalists

  16. Cross-infection between cats and cows: origin and control of Streptococcus canis mastitis in a dairy herd.

    Science.gov (United States)

    Tikofsky, L L; Zadoks, R N

    2005-08-01

    Group G streptococci in animals usually belong to the species Streptococcus canis and are most commonly found in dogs and cats. Occasionally, Strep. canis is detected in milk from dairy cows. An outbreak of Strep. canis mastitis in a dairy herd is described. Based on results from bacterial culture and ribotyping, a cat with chronic sinusitis was the most likely source of the outbreak. Subsequent cow-to-cow transmission of Strep. canis was facilitated by poor udder health management, including use of a common udder cloth and failure to use postmilking teat disinfection. Infected cows had macroscopically normal udders and milk, but significantly higher somatic cell counts than Strep. canis-negative herd mates. The outbreak was controlled through antibiotic treatment of lactating cows, early dry-off with dry cow therapy, culling of infected animals, and implementation of standard mastitis prevention measures. Cure was significantly more likely in dry-treated cows (87.5%) and cows treated during lactation (67%) than in untreated cows (9%). Whereas mastitis due to group G streptococci or Strep. canis in dairy cows is usually limited to sporadic cases of environmental (canine or feline) origin, this case study shows that crossing of the host species barrier by Strep. canis may result in an outbreak of mastitis if management conditions are conducive to contagious transmission. In such a situation, measures that are successful in control of Strep. agalactiae can also be used to control Strep. canis mastitis.

  17. The interleukin 1 (IL-1 system in the uteroplacental complex of a cartilaginous fish, the smoothhound shark, Mustelus canis

    Directory of Open Access Journals (Sweden)

    Hamlett William C

    2003-02-01

    Full Text Available Abstract Cartilaginous fish are the oldest extant jawed vertebrates and the oldest line to have placentae. Their pivotal evolutionary position makes them attractive models to investigate the mechanisms involved in the maternal-fetal interaction. This study describes the tissue expression of the cytokine interlukin-1 (IL-1 α, IL-1 β and its specific membrane receptor, IL-1 receptor type I (IL-1R tI in a placental cartilaginous fish, the smoothhound shark, Mustelus canis. The presence of this cytokine has been reported in many mammalian placentae, as well as in the placenta of a squamate reptile and this study extends these observations to the cartilaginous fishes. The uteroplacental complex in M. canis consists of a yolk sac modified into a functional yolk sac placenta and complimentary uterine attachment sites. Immunohistochemistry for IL-1 α, IL-1 β and the receptor reveals leucocytes of both the mother and fetus to be positive, as well as the apical aspect of paraplacental cells and the apical vesicles in the umbilical cord epithelium. Yolk sac endoderm is also positive with all the stains while the ectoderm is positive only for IL-1 α. Immunoreactivity in the uterine epithelium was obtained for IL-1 α and the receptor. The egg envelope is always negative. In light of the recent finding of IL-1 β gene in a cartilaginous fish and of the high level of conservation of proteins implicated in IL-1 action, our data suggest that IL-1 system is a key mediator of the materno-fetal interaction since the oldest extant placental vertebrates.

  18. Rangelia vitalii and Hepatozoon canis coinfection in pampas fox Lycalopex gymnocercus from Santa Catarina State, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Regina Lucas da Silva

    2018-05-01

    Full Text Available Abstract Rangelia vitalii is a haemoparasite that infects erythrocytes, white blood cells and the cytoplasm of endothelial cells of blood capillaries of canids in South America, and has been detected in both domestic dogs and sylvatic canids. Hepatozoon canis is a parasite that infects neutrophils and monocytes of many mammalian hosts. This study reports the infection of Lycalopex gymnocercus from Santa Catarina, Brazil, with R. vitalii and H. canis. The piroplasm was observed on both blood smears and molecular tests. Many large piroplasms were detected inside the erythrocytes, with round, oval, or teardrop-shaped organism, that occurred singly or in pairs. They had an abundant, pale blue cytoplasm and decentral dark red small nucleus. The animal was also infected with H. canis that was detected only by molecular tests. The majority of haematological and biochemistry parameters were within the reference values for domestic dog and wild canids.

  19. Rangelia vitalii and Hepatozoon canis coinfection in pampas fox Lycalopex gymnocercus from Santa Catarina State, Brazil.

    Science.gov (United States)

    Silva, Maria Regina Lucas da; Mattoso, Cláudio Roberto Scabelo; Costa, Adson; Saito, Mere Erika; Tchaicka, Lygia; O'Dwyer, Lucia Helena

    2018-05-24

    Rangelia vitalii is a haemoparasite that infects erythrocytes, white blood cells and the cytoplasm of endothelial cells of blood capillaries of canids in South America, and has been detected in both domestic dogs and sylvatic canids. Hepatozoon canis is a parasite that infects neutrophils and monocytes of many mammalian hosts. This study reports the infection of Lycalopex gymnocercus from Santa Catarina, Brazil, with R. vitalii and H. canis. The piroplasm was observed on both blood smears and molecular tests. Many large piroplasms were detected inside the erythrocytes, with round, oval, or teardrop-shaped organism, that occurred singly or in pairs. They had an abundant, pale blue cytoplasm and decentral dark red small nucleus. The animal was also infected with H. canis that was detected only by molecular tests. The majority of haematological and biochemistry parameters were within the reference values for domestic dog and wild canids.

  20. Establishment of Demodex canis on canine skin engrafted onto scid-beige mice.

    Science.gov (United States)

    Caswell, J L; Yager, J A; Barta, J R; Parker, W

    1996-12-01

    A small animal model of canine demodicosis is described. Normal canine skin was engrafted onto scid (severe combined immunodeficient)-beige mice, which lack functional B and T lymphocytes and have reduced natural killer cell activity. The xenografts were later infected with Demodex canis collected from a dog with demodicosis. At 30-112 days following infection, mites were seen histologically in the canine hair follicles of the engrafted skin. Demodex canis adults, nymphs, larvae, and eggs were present in samples macerated in sodium hydroxide. Mite infestations could not be demonstrated in the mouse skin, nor were mites passed from the infected graft to uninfected skin grafts on in-contact mice. This model may be utilized to assess the efficacy of miticidal treatments, to evaluate the importance of specific components of the immune response, and to study the biology of D. canis.

  1. Scanning electron microscopy description of a new species of Demodex canis spp.

    Science.gov (United States)

    Tamura, Y; Kawamura, Y; Inoue, I; Ishino, S

    2001-10-01

    Between 1997 and 1999, the prevalence of Demodex canis mites was determined in 150 dogs. In two dogs, we found two different species of mites; Demodex canis and another, unidentified, Demodex mite. The unidentified Demodex mite species had several different morphological features. First, it had a short opisthosoma and an obtuse end. In addition, the fourth coxisternal plate was rectangular and there was a band-like segmental plate between the fourth coxisternal plate and opisthosoma. Although all of the morphology and the development of male mites could not be investigated in this study, the location of the opisthosoma and the genital pore clearly differed from Demodex canis, suggesting that this unidentified mite is a new species.

  2. Konsentrasi Serum Anjing yang Optimum untuk Menumbuhkan dan Memelihara Babesia canis dalam Biakan

    Directory of Open Access Journals (Sweden)

    Tutuk Astyawati

    2010-12-01

    Full Text Available The use of cultivation system in vitro is very important in the future study of Babesia canis. Theaim of this study was to cultivate B. canis in vitro using RPMI media with different concentration of dogsera. B. canis infected erythrocytes were collected from splenectomized infected dog. Parasites werecultivated with RPMI 1640 medium supplemented with normal dog sera at the concentration of 10%, 20%and 40%, the culture were then incubated in 5% CO2 , 37oC temperature for 17 days and subcultured every48 hours. The Percentage of Parasitized Erythrocytes (PPE in culture with 10% dog serum was significantlylower than those 20%, and 40% The used of 20% and 40 % sera were better than 10%. It is recommendedthat 40 % serum can be used for initiation phase of cultivation, whereas 20% concentration were used formaintenance of the culture.

  3. Death Related Themes in Anorexia Nervosa: A Practical Exploration.

    Science.gov (United States)

    Russell, Janice; And Others

    1990-01-01

    Explored death-related themes in psychodynamic etiology of anorexia nervosa by comparing anorexic adolescent patients (n=28) to age-matched controls (n=238). Results suggest that death-related themes are of significance in the understanding and management of anorexia nervosa. (Author/ABL)

  4. Reinventing spatial planning in a borderless Europe : Emergent themes

    NARCIS (Netherlands)

    Waterhout, B.; Faludi, A.K.F.; Stead, D.; Zonneveld, W.; Milder, J.; Nadin, V.

    2009-01-01

    This paper is a follow-up to the Chicago Round Table ‘Emergent Research Themes on European Territorial Governance’ in 2008 questioning the view of EU territory as the sum of mutually exclusive territories under nation-state control and pointing out the existence of overlapping jurisdictions. Themes

  5. Teaching Public Administration: Key Themes 1996-2016

    Science.gov (United States)

    Fenwick, John

    2018-01-01

    In this article, the aim is to explore some of the key themes to emerge in the journal during the past two decades. Each selected theme will be reviewed in the light of issues raised in particular papers. The aim of this approach is, first, to facilitate reflection upon the contribution of the journal as its subject matter has moved from a concern…

  6. Supernatural Themes in Selected Children's Stories of Isaac Bashevis Singer.

    Science.gov (United States)

    Schlessinger, June H.; Vanderryst, June D.

    1989-01-01

    Discusses the impact of the traditional folklore theme of good versus evil on children's development and analyzes the development of this theme using magical and supernatural situations in the work of Isaac Bashevis Singer. A selected bibliography of work by and literary criticisms of Singer's writings is provided. (five references) (CLB)

  7. The New Nuffield Combined Science Themes for the Middle Years

    Science.gov (United States)

    Bingham, C. D.

    1976-01-01

    Described are the development, materials, and use of English developed science activities for junior high schools, the Nuffield Combined Science Themes for the Middle Years. The program, when completed will present 24 themes including: color, water, air, plastics, metals, insects, food, light, and electricity. (SL)

  8. Complex, Dynamic Systems: A New Transdisciplinary Theme for Applied Linguistics?

    Science.gov (United States)

    Larsen-Freeman, Diane

    2012-01-01

    In this plenary address, I suggest that Complexity Theory has the potential to contribute a transdisciplinary theme to applied linguistics. Transdisciplinary themes supersede disciplines and spur new kinds of creative activity (Halliday 2001 [1990]). Investigating complex systems requires researchers to pay attention to system dynamics. Since…

  9. New Themes in Physics Teaching: A Personal Retrospective

    Science.gov (United States)

    Dykstra, Dewey I., Jr.

    2012-01-01

    For a little over 40 years, what we label now physics education research has been conducted. As a result, a new type of theme in the research and in physics education has emerged. Some of these themes are cognitivism, research as qualitative, learning as construction of knowledge, theoretical underpinnings that are not realist, student-centered…

  10. Prokaryotic Argonautes - variations on the RNA interference theme

    Science.gov (United States)

    van der Oost, John; Swarts, Daan C.; Jore, Matthijs M.

    2014-01-01

    The discovery of RNA interference (RNAi) has been a major scientific breakthrough. This RNA-guided RNA interference system plays a crucial role in a wide range of regulatory and defense mechanisms in eukaryotes. The key enzyme of the RNAi system is Argonaute (Ago), an endo-ribonuclease that uses a small RNA guide molecule to specifically target a complementary RNA transcript. Two functional classes of eukaryotic Ago have been described: catalytically active Ago that cleaves RNA targets complementary to its guide, and inactive Ago that uses its guide to bind target RNA to down-regulate translation efficiency. A recent comparative genomics study has revealed that Argonaute-like proteins are also encoded by prokaryotic genomes. Interestingly, there is a lot of variation among these prokaryotic Argonaute (pAgo) proteins with respect to domain architecture: some resemble the eukaryotic Ago (long pAgo) containing a complete or disrupted catalytic site, while others are truncated versions (short pAgo) that generally contain an incomplete catalytic site. Prokaryotic Agos with an incomplete catalytic site often co-occur with (predicted) nucleases. Based on this diversity, and on the fact that homologs of other RNAi-related protein components (such as Dicer nucleases) have never been identified in prokaryotes, it has been predicted that variations on the eukaryotic RNAi theme may occur in prokaryotes. PMID:28357239

  11. Integrated pathway clusters with coherent biological themes for target prioritisation.

    Directory of Open Access Journals (Sweden)

    Yi-An Chen

    Full Text Available Prioritising candidate genes for further experimental characterisation is an essential, yet challenging task in biomedical research. One way of achieving this goal is to identify specific biological themes that are enriched within the gene set of interest to obtain insights into the biological phenomena under study. Biological pathway data have been particularly useful in identifying functional associations of genes and/or gene sets. However, biological pathway information as compiled in varied repositories often differs in scope and content, preventing a more effective and comprehensive characterisation of gene sets. Here we describe a new approach to constructing biologically coherent gene sets from pathway data in major public repositories and employing them for functional analysis of large gene sets. We first revealed significant overlaps in gene content between different pathways and then defined a clustering method based on the shared gene content and the similarity of gene overlap patterns. We established the biological relevance of the constructed pathway clusters using independent quantitative measures and we finally demonstrated the effectiveness of the constructed pathway clusters in comparative functional enrichment analysis of gene sets associated with diverse human diseases gathered from the literature. The pathway clusters and gene mappings have been integrated into the TargetMine data warehouse and are likely to provide a concise, manageable and biologically relevant means of functional analysis of gene sets and to facilitate candidate gene prioritisation.

  12. Neospora caninum and Ehrlichia canis co-infection in a dog with meningoencephalitis.

    Science.gov (United States)

    Aroch, Itamar; Baneth, Gad; Salant, Harold; Nachum-Biala, Yaarit; Berkowitz, Asaf; Shamir, Merav; Chai, Orit

    2018-06-01

    An 8-year-old mixed-breed dog was presented for acute, progressive weakness and ataxia, inappetence, and weight loss. The patient was mentally normal, but nonambulatory, with a right head tilt, right positional ventral strabismus, and slight head tremors. A neurologic lesion was localized to the cerebellum and right brainstem. Cerebrospinal fluid (CSF) analysis showed a markedly increased protein concentration and mixed pleocytosis, with eosinophil predominance (44%), intracytoplasmic inclusions within eosinophils, consistent with Ehrlichia canis (E canis) morulae, and Toxoplasma gondii (T gondii) or Neospora caninum (N caninum) tachyzoites within eosinophils and monocytes. A serum indirect immunofluorescent antibody test was positive for N caninum (titer 1:12 800) and negative for T gondii. Both blood and CSF PCR results were N caninum- and E canis-positive and T gondii- and Anaplasma phagocytophilum-negative, and blood PCR, but not CSF PCR, was Hepatozoon canis-positive. The dog was treated for 30 days with clindamycin, sulfamethoxazole-trimethoprim, doxycycline, prednisone, and cephalosporin, but did not improve neurologically, and was euthanized. Brain histopathology showed moderate multifocal, subacute meningoencephalitis with necrosis and gliosis. The neurologic disease was mostly attributed to central nervous system (CNS) neosporosis, with the possible contribution of ehrlichiosis, which was likely a manifestation of blood-brain barrier disruption. Hepatozoonosis was probably a result or cause of underlying immunosuppression. To our knowledge, this is the first report of CNSN caninum and E canis co-infection detected by both CSF PCR and cytology and E canis morulae identified within CSF eosinophils. © 2018 American Society for Veterinary Clinical Pathology.

  13. Toxocara canis, Trichinella spiralis and Taenia solium helminthozoonoses: seroprevalence among selected populations in north India.

    Science.gov (United States)

    Singh, B B; Sharma, R; Gill, J P S

    2015-09-01

    Helminthozoonoses are being considered as a research priority in India and many other tropical and subtropical countries. Taenia solium and Trichinella spiralis are emerging public health and food safety issues in the country and the developing world. The asymptomatic Ta. solium carriers act as important risk for neurocysticercosis, leading to adult onset epilepsy in the country. Human toxocariasis is another common zoonosis which occurs due to larvae of Toxocara canis or T. cati. The current study was planned to obtain baseline seropositivity data for Ta. solium, To. canis and Tr. spiralis antibodies among selected populations in Punjab province of northern India. In the present study, 122 human subjects belonging to selected occupations viz. farmers and veterinary practitioners were screened using the RIDASCREEN(®) Ta. solium IgG, RIDASCREEN(®) Toxocara IgG and RIDASCREEN(®) Trichinella IgG enzyme immunoassays for the qualitative determination of IgG antibodies against Ta. solium, Tr. spiralis and To. canis, respectively in human serum. The seropositivity of To. canis, Tr. spiralis and Ta. solium infections were found to be 22.13, 5.73 and 11.47 %, respectively in human serum samples. The relative risk of being infected for To. canis, Tr. spiralis and Ta. solium infections was found to be 1.91 (95 % CI 0.786-4.669), 2.61 (95 % CI 0.3258-20.94) and 1.596 (95 % CI 0.427-5.3893) times high respectively in farmers when compared to veterinary practitioners. The present study indicates that exposure to To. canis and Ta. solium is not uncommon among farmers and veterinary practitioners in this part of the country. These results provided evidence of Tr. spiralis among selected human populations in the country and demand more research related to trichinellosis in their respective animal and human hosts.

  14. Mortalidad por meningitis por Pasteurella canis. Oportunidades de aprendizaje

    Directory of Open Access Journals (Sweden)

    Ana Rosa Ropero Vera

    2016-01-01

    Full Text Available La meningitis bacteriana es una enfermedad importante de distribución mundial, causa mayor y sustancial de mortalidad y morbilidad en países en desarrollo. La Organización Mundial de la Salud (OMS sostiene que la meningitis es una de las diez afecciones principales del ser humano y debe ser considerada como una emergencia infectológica; por eso es fundamental reconocer que esta enfermedad es causa de muerte en niños de todo el mundo, sin distinción de raza, nivel económico o sociocultural. Se realizó una investigación de caso en menor de 53 días de nacido, que cumplía con los criterios clínicos y de laboratorio compatible con meningitis bacteriana, con el propósito de analizar y fortalecer la toma de decisiones en salud pública por parte de la secretaría local de salud del municipio de Valledupar (Colombia. Entre los hallazgos se encontró antecedentes infecciosos en el menor, coloración de Gram y cultivo de LCR, en el que se identificó cocobacilos Gram negativos, que fueron aislados como agente causal Pasteurella canis. Este estudio pretende sensibilizar a los prestadores de salud para que cuenten con personal altamente capacitado para brindar tratamientos adecuados y prevenir complicaciones en la meningitis bacteriana en niños, y así disminuir la posibilidad de secuelas o muerte, tanto en pacientes con compromiso inmunológico o sin este.

  15. Serum Zinc, Iron and Copper Concentrations in Dogs Infected with Hepatozoon canis

    Directory of Open Access Journals (Sweden)

    Kamil Seyrek

    2009-01-01

    Full Text Available In Turkey, canine hepatozoonosis is an emerging infection with a large number of cases detected during the past five years. In the present study, serum zinc, copper and iron concentrations of dogs infected with Hepatozoon canis were measured for the first time. Compared to the controls (n = 10, serum zinc and iron concentrations in infected animals (n = 14 decreased significantly (p p p Hepatozoon canis infection may cause alterations in serum zinc iron and copper concentrations. Furthermore, in the treatment of infected animals addition of zinc and iron to the ration of infected animals should be taken into consideration.

  16. Morphometric variations in gametocytes of Hepatozoon canis from naturally infected dogs.

    Science.gov (United States)

    Eljadar, Mohamed S M; Singla, L D; Mustafa, Radya A A; Uppal, S K

    2013-04-01

    This study presents the morphometric characteristic of canine haemoprotozoan, Hepatozoon canis, using software DP2-BSW (OLYMPUS). The gametocytes of H. canis found inside the neutrophils were characteristic in shape and size and varied from 9.50 to 11.80 μm × 5.10-6.00 μm. Parasitaemia ranged from 1.00 to 39.00 %. Few gametocytes without nuclei and of abnormal shapes were also observed. The results were compared with the measurements done by using ocular micrometer.

  17. ELEVATED TRANS-MAMMARY TRANSMISSION OF Toxocara canis LARVAE IN BALB/c MICE

    Directory of Open Access Journals (Sweden)

    Paula de Lima Telmo

    2015-02-01

    Full Text Available Toxocariasis is a widespread zoonosis and is considered an important worldwide public health problem. The aim of this study was to investigate the frequency of trans-mammary Toxocara canis infection in newborn BALB/c mice nursed by females experimentally infected with 1,200 eggs after delivery. After 50 days of age, the presence of larvae in different organs of the offspring was investigated. Trans-mammary infection was confirmed in 73.9% of the mice that had been nursed by infected females. These data show a high trans-mammary transmission of T. canis and confirm the significance of this transmission route in paratenic hosts.

  18. Ehrlichia canis morulae and DNA detection in whole blood and spleen aspiration samples.

    Science.gov (United States)

    Faria, Joice Lara Maia; Dagnone, Ana Sílvia; Munhoz, Thiago Demarchi; João, Carolina Franchi; Pereira, Wanderson Adriano Biscola; Machado, Rosângela Zacarias; Tinucci-Costa, Mirela

    2010-01-01

    The aim of this study was to compare the detection of Ehrlichia canis morulae and DNA by nPCR in whole blood and spleen aspiration. The sample included 40 dogs showing thrombocytopenia associated to clinical signs suggestive of canine ehrlichiosis. Morulae detection showed that in 35 of the dogs studied, 17 had morulae in spleen tissue, and two in buffy coat smears. E. canis DNA was detected in 29/40 blood samples. We verified that morulae detection is more efficient in cytological preparations from spleen aspiration. On the other hand, nPCR on spleen and blood samples were equally efficient for disease diagnosis.

  19. Serology, molecular detection and risk factors of Ehrlichia canis infection in dogs in Costa Rica.

    Science.gov (United States)

    Barrantes-González, Alexander V; Jiménez-Rocha, Ana E; Romero-Zuñiga, Juan José; Dolz, Gaby

    2016-10-01

    A cross-sectional study combining different serological and molecular techniques for the detection of Ehrlichia species in dogs and their ticks was carried out with data from all regions of Costa Rica. A seroprevalence of 32.1% (131/408), and infection with E. canis of 3.2% (13/407) was found, whereas 6.9% (9/130) of ticks attached to the dogs were PCR positive to E. canis. Higher prevalences were found outside the Greater Metropolitan Area (GMA). Risk factors associated with E. canis seropositivity were age, between 2 and 7 years (RR: 1.6, 95% CI: 1.2-2.2) and 8-15 years (RR: 1.8, 95% CI: 1.2-3.0), number of dogs/total of households [Dogs per Household Ratio (DHR) ≥3.1 (RR: 2.0; 95% CI: 1.4-3.0)], number of dogs infested with at least one tick/total of dogs sampled [Tick Infestation Prevalence (TIP)≥31% (RR: 2.1; 95% CI:1.3-3.3)] and living outside the GMA (RR: 1.7; 95% CI: 1.2-2.4) and being a mixed-breed dog (RR: 1.5; 95% CI: 1.1-2.1). Risk factors for E. canis PCR positive dogs were a depressive attitude (OR: 11.2; 95% CI: 1.1-115.9), fever (OR:4.8; 95% CI:1.2-19.3), DHR≥3.1 (OR: 5.7; 95% CI:1.7-19.2)], number of ticks/total of dogs sampled [Tick Distribution Ratio (TDR) ≥2.1 (OR: 6.5; 95% CI: 1.3-31.8)], and TIP≥40% (OR: 5.7; 95% CI: 1.7-19.2). This paper describes E. canis seroprevalence, PCR prevalence and tick analysis in dogs from Costa Rica, with associated clinical signs and owner perceptions. In summary, most of the E. canis infections in dogs in our country seemed to pass unnoticed by owners. Since most of the seropositive dogs (97.7%, 131/134) were negative for E. canis DNA in their blood, it is important to determine in future studies if these dogs recovered from the E. canis infection without any medication, or are persistently infected, and will develop chronic disease. Copyright © 2016 Elsevier GmbH. All rights reserved.

  20. Prevalence of Toxocara canis infection in dogs in the Warszawa area.

    Science.gov (United States)

    Borecka, A; Gawor, J

    2000-01-01

    The evaluation of Toxocara canis infection in stray dogs from two shelters and private owners dogs in the Warszawa district was the aim of this study. In 1998 five hundred faecal samples were examined. The homeless dogs were found more infected than those kept as pets. T. canis was recorded in 3.4% and 8.8% of stray dogs from the shelters and in 0.4% of animals from flats. The higher prevalence of infection in homeless dogs was due to high density of dogs population, worse environmental condition and irregular anthelmintic treatment in the shelters when compare with housed dogs.

  1. Construction of a cDNA library from female adult of Toxocara canis, and analysis of EST and immune-related genes expressions.

    Science.gov (United States)

    Zhou, Rongqiong; Xia, Qingyou; Huang, Hancheng; Lai, Min; Wang, Zhenxin

    2011-10-01

    Toxocara canis is a widespread intestinal nematode parasite of dogs, which can also cause disease in humans. We employed an expressed sequence tag (EST) strategy in order to study gene-expression including development, digestion and reproduction of T. canis. ESTs provided a rapid way to identify genes, particularly in organisms for which we have very little molecular information. In this study, a cDNA library was constructed from a female adult of T. canis and 215 high-quality ESTs from 5'-ends of the cDNA clones representing 79 unigenes were obtained. The titer of the primary cDNA library was 1.83×10(6)pfu/mL with a recombination rate of 99.33%. Most of the sequences ranged from 300 to 900bp with an average length of 656bp. Cluster analysis of these ESTs allowed identification of 79 unique sequences containing 28 contigs and 51 singletons. BLASTX searches revealed that 18 unigenes (22.78% of the total) or 70 ESTs (32.56% of the total) were novel genes that had no significant matches to any protein sequences in the public databases. The rest of the 61 unigenes (77.22% of the total) or 145 ESTs (67.44% of the total) were closely matched to the known genes or sequences deposited in the public databases. These genes were classified into seven groups based on their known or putative biological functions. We also confirmed the gene expression patterns of several immune-related genes using RT-PCR examination. This work will provide a valuable resource for the further investigations in the stage-, sex- and tissue-specific gene transcription or expression. Copyright © 2011. Published by Elsevier Inc.

  2. Serological cross-reactivity of Trypanosoma cruzi, Ehrlichia canis, Toxoplasma gondii, Neospora caninum and Babesia canis to Leishmania infantum chagasi tests in dogs

    Directory of Open Access Journals (Sweden)

    Maurício Franco Zanette

    2014-01-01

    Full Text Available Introduction: The aim of this study was to evaluate the serological cross-reactivity between Leishmania sp. and other canine pathogens. Methods: Positive serum samples for Ehrlichia canis, Babesia canis, Toxoplasma gondii, Neospora caninum and Trypanosoma cruzi were tested using three serological methods enzyme linked immunosorbent assay (ELISA, indirect immunofluorescent antibody test (IFAT and Kalazar Detect™, for canine visceral leishmaniasis. Results: Of the 57 dog samples tested, 24 (42.1% tested positive using one of the three serological methods: 10/57 (17.5% for ELISA, 11/57 (19.3% for IFAT and 3/57 (5.3% for Kalazar Detect™. Conclusions: Our results demonstrated that the presence of other infectious agents may lead to cross-reactivity on leishmaniasis serological tests.

  3. [Evaluation standards and application for photography of schistosomiasis control theme].

    Science.gov (United States)

    Chun-Li, Cao; Qing-Biao, Hong; Jing-Ping, Guo; Fang, Liu; Tian-Ping, Wang; Jian-Bin, Liu; Lin, Chen; Hao, Wang; You-Sheng, Liang; Jia-Gang, Guo

    2018-02-26

    To set up and apply the evaluation standards for photography of schistosomiasis control theme, so as to offer the scientific advice for enriching the health information carrier of schistosomiasis control. Through the literature review and expert consultation, the evaluation standard for photography of schistosomiasis control theme was formulated. The themes were divided into 4 projects, such as new construction, natural scenery, working scene, and control achievements. The evaluation criteria of the theme photography were divided into the theme (60%), photographic composition (15%), focus exposure (15%), and color saturation (10%) . A total of 495 pictures (sets) from 59 units with 77 authors were collected from schistosomiasis epidemic areas national wide. After the first-step screening and second-step evaluation, the prizes of 3 themes of control achievements and new construction, working scene, and natural scenery were selected, such as 6 pictures of first prize, 12 pictures of second prize, 18 pictures of third prize, and 20 pictures of honorable prize. The evaluation standards of theme photography should be taken into the consideration of the technical elements of photography and the work specification of schistosomiasis prevention and control. In order to improve the ability of records for propaganda purpose of schistosomiasis control and better play a role of guiding correct propaganda, the training and guidance of photography of professionals should be carried out.

  4. The use of negative themes in television food advertising.

    Science.gov (United States)

    Pettigrew, Simone; Roberts, Michele; Chapman, Kathy; Quester, Pascale; Miller, Caroline

    2012-04-01

    The ability of food advertising to trigger food consumption and influence social norms relating to food consumption has resulted in increasing attention being given to the prevalence and nature of food advertising. The present study investigated the use of negative themes in food advertisements aired on Australian television to determine the prevalence of depictions of violence/aggression, mocking, nagging, boredom, loneliness, food craving, mood enhancement, and the emotional use of food across 61 days of programming time. The results suggest that advertisers are using negative themes to capture attention and invoke an emotional response in the target audience. Sixteen percent (14,611) of the 93,284 food advertisements contained negative themes, with mood enhancement and food craving being the most commonly depicted negative themes. Advertisements with negative themes were more likely to be for non-core foods and to be aired during children's popular viewing times than at other times. The potential for negative themes in food advertising to promote unhealthy food consumption behaviors among children is likely to be of concern to policy makers. Building on this exploratory study, further research is needed to investigate how nutrition-related decision making is affected by exposure to food advertisements employing negative emotional themes. Copyright © 2011 Elsevier Ltd. All rights reserved.

  5. Detecting Themed Streets Using a Location Based Service Application

    Directory of Open Access Journals (Sweden)

    Byeongsuk Ji

    2016-07-01

    Full Text Available Various themed streets have recently been developed by local governments in order to stimulate local economies and to establish the identity of the corresponding places. However, the motivations behind the development of some of these themed street projects has been based on profit, without full considerations of people’s perceptions of their local areas, resulting in marginal effects on the local economies concerned. In response to this issue, this study proposed a themed street clustering method to detect the themed streets of a specific region, focusing on the commercial themed street, which is more prevalent than other types of themed streets using location based service data. This study especially uses “the street segment” as a basic unit for analysis. The Sillim and Gangnam areas of Seoul, South Korea were chosen for the evaluation of the adequacy of the proposed method. By comparing trade areas that were sourced from a market analysis report by a reliable agent with the themed streets detected in this study, the experiment results showed high proficiency of the proposed method.

  6. Changes in themes over time from medical student journaling.

    Science.gov (United States)

    Cayley, William; Schilling, Rae; Suechting, Ralph

    2007-12-01

    There has been little exploration of journaling in medical student education. To document the themes on which medical students reflect during training. We evaluated journals kept by primary care medical students to identify prominent themes and determine change or constancy in themes over time. We looked at third-year medical students participating in a required primary care clerkship in a university-affiliated, community-based family medicine residency program with a rural catchment area. During 1994-1996 and 2001-2003, students were asked to keep weekly journals reflecting on their thoughts and feelings regarding "topical content, course processes and methods, and personal reflections on becoming a doctor." Faculty evaluated journals to identify change or constancy in themes over time. Prominent themes included gender issues, professional identity emergence, career choice, and rural practice, the experience of learning, the experience of relating to patients, and the nature of medical practice. We found both constancy and change in student journal themes over time. Changes in journal themes appeared to correlate with outside events and educational trends, including increased attention to reflective practice, changing demographics in medicine and the increasing acceptance of female physicians, and personal life events.

  7. Canis mtDNA HV1 database: a web-based tool for collecting and surveying Canis mtDNA HV1 haplotype in public database.

    Science.gov (United States)

    Thai, Quan Ke; Chung, Dung Anh; Tran, Hoang-Dung

    2017-06-26

    Canine and wolf mitochondrial DNA haplotypes, which can be used for forensic or phylogenetic analyses, have been defined in various schemes depending on the region analyzed. In recent studies, the 582 bp fragment of the HV1 region is most commonly used. 317 different canine HV1 haplotypes have been reported in the rapidly growing public database GenBank. These reported haplotypes contain several inconsistencies in their haplotype information. To overcome this issue, we have developed a Canis mtDNA HV1 database. This database collects data on the HV1 582 bp region in dog mitochondrial DNA from the GenBank to screen and correct the inconsistencies. It also supports users in detection of new novel mutation profiles and assignment of new haplotypes. The Canis mtDNA HV1 database (CHD) contains 5567 nucleotide entries originating from 15 subspecies in the species Canis lupus. Of these entries, 3646 were haplotypes and grouped into 804 distinct sequences. 319 sequences were recognized as previously assigned haplotypes, while the remaining 485 sequences had new mutation profiles and were marked as new haplotype candidates awaiting further analysis for haplotype assignment. Of the 3646 nucleotide entries, only 414 were annotated with correct haplotype information, while 3232 had insufficient or lacked haplotype information and were corrected or modified before storing in the CHD. The CHD can be accessed at http://chd.vnbiology.com . It provides sequences, haplotype information, and a web-based tool for mtDNA HV1 haplotyping. The CHD is updated monthly and supplies all data for download. The Canis mtDNA HV1 database contains information about canine mitochondrial DNA HV1 sequences with reconciled annotation. It serves as a tool for detection of inconsistencies in GenBank and helps identifying new HV1 haplotypes. Thus, it supports the scientific community in naming new HV1 haplotypes and to reconcile existing annotation of HV1 582 bp sequences.

  8. A Foundation for Mobile User Experiences in Theme Parks

    DEFF Research Database (Denmark)

    Østergaard, Claus Møller

    2013-01-01

    Based on case studies, this paper proposes a theoretical understanding of three essential aspects, which affect mobile user experiences in theme parks. The aspect are (a) the controllability of the mobile content, (b) the balance in the hybrid space of proximate physical place and remote digital...... space, and (c) the social space. Furthermore, the social space is exceptionally important in understanding mobile user experiences in theme parks. Thus, this paper proposes to extract the social space from the physical place. This means, that mobile user experiences in theme parks can be understood...

  9. Molecular Survey of Hepatozoon canis in Red Foxes (Vulpes vulpes) from Romania.

    Science.gov (United States)

    Imre, Mirela; Dudu, Andreea; Ilie, Marius S; Morariu, Sorin; Imre, Kálmán; Dărăbuş, Gheorghe

    2015-08-01

    Blood samples of 119 red foxes, originating from 44 hunting grounds of 3 western counties (Arad, Hunedoara, and Timiş) of Romania, have been examined for the presence of Hepatozoon canis infection using the conventional polymerase chain reaction (PCR) of the fragment of 18S rRNA gene. Overall, 15 (12.6%) samples were found to be PCR-positive. Of the sampled hunting grounds, 29.5% (13/44) were found positive. Positive samples were recorded in all screened counties with the prevalence of 14.8% (9/61) in Arad, 9.8% (5/51) in Timiş, and 14.3% (1/7) in Hunedoara, respectively. No correlation was found (P > 0.05) between H. canis positivity and gender or territorial distribution of the infection. To confirm PCR results, 9 randomly selected amplicons were sequenced. The obtained sequences were identical to each other, confirmed the results of the conventional PCR, and showed 98-100% homology to other H. canis sequences. The results of the current survey support the role of red foxes as sylvatic reservoirs of H. canis in Romania.

  10. Failure of imidocarb dipropionate and toltrazuril/emodepside plus clindamycin in treating Hepatozoon canis infection.

    Science.gov (United States)

    De Tommasi, Anna Sara; Giannelli, Alessio; de Caprariis, Donato; Ramos, Rafael Antonio Nascimento; Di Paola, Giancarlo; Crescenzo, Giuseppe; Dantas-Torres, Filipe; Baneth, Gad; Otranto, Domenico

    2014-03-01

    Hepatozoonosis caused by Hepatozoon canis (Eucoccidiorida, Hepatozoidae) is among the most widespread vector-borne infections of dogs, primarily transmitted by Rhipicephalus sanguineus sensu lato ticks. Based on the absence of a consensus on the treatment regimes for canine hepatozoonosis, the present study aimed to evaluate the efficacy of imidocarb dipropionate (5-6 mg/kg subcutaneously once a week for 6 weeks), and of toltrazuril/emodepside (Procox(®), 15 mg/kg once a day for 6 days) in association with clindamycin (15 mg/kg once a day for 21 days) in treating naturally infected dogs. At the enrollment time (T0), 32 dogs, cytologically or molecularly positive for H. canis, were assigned to test and control groups. Animals were treated according to the specific therapeutic protocol, and the presence of H. canis gamonts was assessed weekly by cytology and PCR throughout six months (T1-T19). In addition, any abnormality in leucocyte morphology was evaluated and recorded. Results indicate that, in spite of a reduction in the percentage of infected dogs, both treatments did not provide parasitological cure. Accordingly, new treatment protocols or active compounds against H. canis should be investigated. Copyright © 2013 Elsevier B.V. All rights reserved.

  11. Hepatozoon canis infection in ticks during spring and summer in Italy.

    Science.gov (United States)

    Dantas-Torres, Filipe; Latrofa, Maria Stefania; Weigl, Stefania; Tarallo, Viviana Domenica; Lia, Riccardo Paolo; Otranto, Domenico

    2012-02-01

    Hepatozoon canis is a common protozoan of dogs, being among the most prevalent tick-borne pathogens infecting dogs around the world. It is primarily transmitted by Rhipicephalus sanguineus, the brown dog tick. In this study we tested ticks collected from dogs and from the environment in order to track the origin of an outbreak of H. canis infection detected in October 2009 in a private dog shelter in southern Italy. Ticks from dogs (n = 267) were collected during the spring of 2009, whereas ticks from environment (n = 300) were found on sticky traps placed in the same shelter during the summer of 2009. All ticks were tested by PCR for the detection of a H. canis 18S ribosomal RNA gene fragment. Four (1.5%, one female and three males) ticks collected from dogs were PCR positive. None of the larvae collected from the environment were positive, but a relatively high infection rate (8.0%) was detected in nymphs. These findings point out that dogs became infected during the summer, when ticks were abundant and highly infected by H. canis. Moreover, this study suggests that castor oil sticky traps might be useful to collect engorged immature ticks in highly infested environments (e.g., dog shelters). This might be particularly interesting to evaluate the level of infection by certain pathogens in free-ranging ticks R. sanguineus, as done in the present study.

  12. Development of a real-time PCR to detect Demodex canis DNA in different tissue samples.

    Science.gov (United States)

    Ravera, Ivan; Altet, Laura; Francino, Olga; Bardagí, Mar; Sánchez, Armand; Ferrer, Lluís

    2011-02-01

    The present study reports the development of a real-time polymerase chain reaction (PCR) to detect Demodex canis DNA on different tissue samples. The technique amplifies a 166 bp of D. canis chitin synthase gene (AB 080667) and it has been successfully tested on hairs extracted with their roots and on formalin-fixed paraffin embedded skin biopsies. The real-time PCR amplified on the hairs of all 14 dogs with a firm diagnosis of demodicosis and consistently failed to amplify on negative controls. Eleven of 12 skin biopsies with a morphologic diagnosis of canine demodicosis were also positive. Sampling hairs on two skin points (lateral face and interdigital skin), D. canis DNA was detected on nine of 51 healthy dogs (17.6%) a much higher percentage than previously reported with microscopic studies. Furthermore, it is foreseen that if the number of samples were increased, the percentage of positive dogs would probably also grow. Moreover, in four of the six dogs with demodicosis, the samples taken from non-lesioned skin were positive. This finding, if confirmed in further studies, suggests that demodicosis is a generalized phenomenon in canine skin, due to proliferation of local mite populations, even though macroscopic lesions only appear in certain areas. The real-time PCR technique to detect D. canis DNA described in this work is a useful tool to advance our understanding of canine demodicosis.

  13. First phylogenetic analysis of Ehrlichia canis in dogs and ticks from Mexico. Preliminary study

    Directory of Open Access Journals (Sweden)

    Carolina G. Sosa-Gutiérrez

    2016-09-01

    Full Text Available Objective. Phylogenetic characterization of Ehrlichia canis in dogs naturally infected and ticks, diagnosed by PCR and sequencing of 16SrRNA gene; compare different isolates found in American countries. Materials and methods. Were collected Blood samples from 139 dogs with suggestive clinical manifestations of this disease and they were infested with ticks; part of 16SrRNA gene was sequenced and aligned, with 17 sequences reported in American countries. Two phylogenetic trees were constructed using the Maximum likelihood method, and Maximum parsimony. Results. They were positive to E. canis 25/139 (18.0% dogs and 29/139 (20.9% ticks. The clinical manifestations presented were fever, fatigue, depression and vomiting. Rhipicephalus sanguineus Dermacentor variabilis and Haemaphysalis leporis-palustris ticks were positive for E. canis. Phylogenetic analysis showed that the sequences of dogs and ticks in Mexico form a third group diverging of sequences from South America and USA. Conclusions. This is the first phylogenetic analysis of E. canis in Mexico. There are differences in the sequences of Mexico with those reported in South America and USA. This research lays the foundation for further study of genetic variability.

  14. Gray wolf (Canis lupus) is a natural definitive host for Neospora caninum

    Science.gov (United States)

    The gray wolf (Canis lupus) was found to be a new natural definitive host for Neospora caninum. This finding is based on the recovery of Neospora-like oocysts from the feces of 3 of 73 wolves from Minnesota examined at necropsy, and on successful amplification of N. caninum-specific sequences from ...

  15. Hair Contamination of Sheepdog and Pet Dogs with Toxocara Canis Eggs

    Directory of Open Access Journals (Sweden)

    AR Khezri

    2012-12-01

    Full Text Available Background: We tried to investigate the hair contamination of pet dogs and farm sheepdog with Toxocara eggs in terms of the different sex and age groups in north-west of Iran (Urmia and its sub­urbs.Methods: Hair samples were collected from a total of 138 pet and farm sheepdogs from November 2008 to June 2009 in Urmia City and the suburb (West Azerbaijan-Iran and examined for the pres­ence of T. canis eggs.Results: T. canis eggs found in 60 samples altogether (pet and shepherd dogs showed a contamina­tion rate of 36.2%. The number of observed T. canis eggs in each microscope field was va­ried from 1 to > 400. The age of the dog was found a significant factor to influence the prevalence and intensity of contamination, with 82% of all the eggs recovered from puppies (six months and younger. Additionally, the numbers of eggs in farm sheepdogs were significantly higher than pet dogs (P<0.05.Conclusions: This report shows that direct contact with T. canis infected dogs, particularly puppies from shepherd dogs, may pose a serious hazard to human. Besides, as they may harbor a considera­ble number of eggs on their hair, they can contaminate the soil and the environment.

  16. 75 FR 24741 - Endangered and Threatened Wildlife and Plants; Mexican Wolf (Canis lupus baileyi) Conservation...

    Science.gov (United States)

    2010-05-05

    ...] Endangered and Threatened Wildlife and Plants; Mexican Wolf (Canis lupus baileyi) Conservation Assessment... Mexico Ecological Services Field Office, 2105 Osuna NE, Albuquerque, NM 87113; by telephone at 505-761... guided by the 1982 Mexican Wolf Recovery Plan (U.S. Fish and Wildlife Service 1982) (recovery plan...

  17. Isolation and genetic characterization of Toxoplasma gondii from the gray wolf Canis lupus

    Science.gov (United States)

    Little is known of the genetic diversity of Toxoplasma gondii circulating in wildlife. In the present study feral gray wolf (Canis lupus) from Minnesota were examined for T. gondii infection. Antibodies to T. gondii were detected in 130 (52.4%) of 248 wolves tested by the modified agglutination test...

  18. Sarcocystis arctica (Apicomplexa: Sarcocystidae): ultrastructural description and its new host record, the Alaskan wolf (Canis lupus

    Science.gov (United States)

    Sarcocystis sarcocysts are common in muscles of herbivores but are rare in muscles of carnivores. Here, we report sarcocysts in muscle of an Alaskan wolf (Canis lupus) from Alaska, USA for the first time. Sarcocysts extracted from tongue of the wolf were up to 900 µm long, slender, and appeared to h...

  19. Tissue expression pattern of ABCG transporter indicates functional roles in reproduction of Toxocara canis.

    Science.gov (United States)

    Luo, Yong-Li; Ma, Guang-Xu; Luo, Yong-Fang; Kuang, Ce-Yan; Jiang, Ai-Yun; Li, Guo-Qing; Zhou, Rong-Qiong

    2018-03-01

    Toxocara canis is a zoonotic parasite with worldwide distribution. ATP-binding cassette (ABC) transporters are integral membrane proteins which involve in a range of biological processes in various organisms. In present study, the full-length coding sequence of abcg-5 gene of T. canis (Tc-abcg-5) was cloned and characterized. A 633 aa polypeptide containing two conserved Walker A and Walker B motifs was predicted from a continuous 1902 nt open reading frame. Quantitative real-time PCR was employed to determine the transcriptional levels of Tc-abcg-5 gene in adult male and female worms, which indicated high mRNA level of Tc-abcg-5 in the reproductive tract of adult female T. canis. Tc-abcg-5 was expressed to produce rabbit polyclonal antiserum against recombinant TcABCG5. Indirect-fluorescence immunohistochemical assays were carried out to detect the tissue distribution of TcABCG5, which showed predominant distribution of TcABCG5 in the uterus (especially in the germ cells) of adult female T. canis. Tissue transcription and expression pattern of Tc-abcg-5 indicated that Tc-abcg-5 might play essential roles in the reproduction of this parasitic nematode.

  20. Tissue distribution and functional analysis of vitellogenin-6 of Toxocara canis.

    Science.gov (United States)

    Zhu, Hong-Hong; Ma, Guang-Xu; Luo, Yong-Fang; Luo, Yong-Li; Yin, Sha-Sha; Xiong, Yi; Zhou, Rong-Qiong

    2017-06-01

    Toxocara canis is an common intestinal nematode of canids and the principal causative agent of human toxocariasis. Vitellogenin (Vg), a source of amino acids and lipids in the eggs, are considered to play an important role in embryo development of a wide range of organisms. In the present study, the transcriptional levels of Tc-vit-6 gene in male and female adult T. canis were determined by quantitative real-time PCR, which indicated high transcription of Tc-vit-6 in the intestine, reproductive tract and body wall of male and female adult T. canis. The fragment of Tc-vit-6 encoding a vWD domain, was cloned and expressed to produce a rabbit anti-TcvWD polyclonal antibody. Tissue distribution of TcVg6 was detected by immunohistochemical assays, which showed predominant distribution of TcVg6 in the tissues of intestine, as well as reproductive tract (including some of the germ cells) and musculature of male and female adult worms. Collectively, these results indicated multiple biological roles of TcVg6 apart from that in the reproduction of T. canis. Copyright © 2017 Elsevier Inc. All rights reserved.

  1. Molecular characterization and functional analysis of serine/threonine protein phosphatase of Toxocara canis.

    Science.gov (United States)

    Ma, Guang Xu; Zhou, Rong Qiong; Hu, Shi Jun; Huang, Han Cheng; Zhu, Tao; Xia, Qing You

    2014-06-01

    Toxocara canis (T. canis) is a widely prevalent zoonotic parasite that infects a wide range of mammalian hosts, including humans. We generated the full-length complementary DNA (cDNA) of the serine/threonine phosphatase gene of T. canis (Tc stp) using 5' rapid amplification of the cDNA ends. The 1192-bp sequence contained a continuous 942-nucleotide open reading frame, encoding a 313-amino-acid polypeptide. The Tc STP polypeptide shares a high level of amino-acid sequence identity with the predicted STPs of Loa loa (89%), Brugia malayi (86%), Oesophagostomum columbianum (76%), and Oesophagostomumdentatum (76%). The Tc STP contains GDXHG, GDXVDRG, GNHE motifs, which are characteristic of members of the phosphoprotein phosphatase family. Our quantitative real-time polymerase chain reaction analysis showed that the Tc STP was expressed in six different tissues in the adult male, with high-level expression in the spermary, vas deferens, and musculature, but was not expressed in the adult female, suggesting that Tc STP might be involved in spermatogenesis and mating behavior. Thus, STP might represent a potential molecular target for controlling T. canis reproduction. Copyright © 2014 Elsevier Inc. All rights reserved.

  2. sero-epidemiology of toxocara canis infection in chil- dren attending ...

    African Journals Online (AJOL)

    2015-06-01

    Jun 1, 2015 ... dogs.2. The prevalence of toxocariasis is generally higher in tropical and developing countries than in developed countries and has been associated with .... canis sero-positivity and characteris- tics of children attending four selected hospitals in the. Central Region, Ghana. Variable Group. (Characteristic).

  3. Abnormal neurobehaviour and impaired memory function as a consequence of Toxocara canis- as well as Toxocara cati-induced neurotoxocarosis.

    Directory of Open Access Journals (Sweden)

    Elisabeth Janecek

    2017-05-01

    Full Text Available Neuroinvasive larvae of the worldwide occurring zoonotic roundworms Toxocara canis and T. cati may induce neurotoxocarosis (NT in humans, provoking a variety of symptoms including cognitive deficits as well as neurological dysfunctions. An association with neuropsychological disorders has been discussed. Similar symptoms have been described in T. canis-infected mice, whereas data on T. cati-induced NT are rare. Therefore, it was aimed to obtain insights into the impact on neurobehaviour as well as progression of neurological symptoms and behavioural alterations during the course of NT directly comparing T. canis- and T. cati-infected mice as models for human NT.C57BL/6 mice were orally infected with 2000 embryonated T. canis or T. cati eggs, respectively, the control group received tap water. Mice were screened weekly for neurobehavioural alterations and memory function starting one day prior infection until 97 days post infection (pi; T. canis-infection and day 118 pi (T. cati-infection, uninfected control. Mostly motoric and neurological parameters were affected in T. canis-infected mice starting day 20 pi with severe progression accompanied by stereotypical circling. In contrast, T. cati-infected mice mostly showed reduced response to sudden sound stimulus (indicator for excitability and flight behaviour starting day 6 pi. Interestingly, enhanced grooming behaviour was observed exclusively in T. cati-infected mice, indicating a possible role of neurotransmitter dysregulation. Reduced exploratory behaviour and memory impairment was observed in both infection groups with delayed onset and less severe progression in T. cati- compared to T. canis-infected mice.Results highlight the need to consider T. cati beside T. canis as causative agent of human NT. Findings provide valuable hints towards differences in key regulatory mechanisms during T. canis- and T. cati-induced NT, contributing to a comprehensive picture and consequently a broader

  4. Traffic Accident Investigation: A Suitable Theme for Teaching Mechanics.

    Science.gov (United States)

    Tao, P. K.

    1987-01-01

    Suggests the development of curriculum materials on the applications of physics to traffic accident investigations as a theme for teaching mechanics. Describes several standard investigation techniques and the physics principles involved, along with some sample exercises. (TW)

  5. Theme: The Role of Science in the Agricultural Education Curriculum.

    Science.gov (United States)

    Agricultural Education Magazine, 2002

    2002-01-01

    Thirteen theme articles discuss integration of science and agriculture, the role of science in agricultural education, biotechnology, agriscience in Tennessee and West Virginia, agriscience and program survival, modernization of agricultural education curriculum, agriscience and service learning, and biotechnology websites. (SK)

  6. Themes and challenges in making supply chains socially sustainable

    DEFF Research Database (Denmark)

    Abbasi, Maisam

    2014-01-01

    Purpose Purpose of this paper is to explore and classify pattern of the currently discussed themes and challenges in making supply chains socially sustainable. Design/methodology/approach The methodology was based on a systematic review of the existing literature in order to explore what major...... themes and challenges have been discussed as well as the significant gaps where opportunities for further research can be found. Findings In total five categories of themes were identified, namely goods/service-centric, human-centric, organization-centric, corporate-centric, and management...... holistic view of the pattern of currently discussed themes and challenges may be beneficial in increasing the absorptive capacity of industrial and business practitioners when they design and operationalize innovative strategies in developing sustainable supply chains. Originality/value This paper may...

  7. Introducing the JMBE Themed Issue on Scientific Citizenship

    Directory of Open Access Journals (Sweden)

    Jack A. Gilbert

    2016-01-01

    Full Text Available In this Editorial, the three Guest Editors for JMBE's first standalone themed issue introduce the topic of scientific citizenship and provide an overview of the current ideas and best practices contained within the issue. 

  8. The historical theme in the poetry of Esenin

    Directory of Open Access Journals (Sweden)

    Hunarikova P. H.

    2016-03-01

    Full Text Available the article examines the historical theme in the poetry of Esenin. The author explores in his work historical problems in poetry Esenin, shows the role of the poet in contemporary Russia.

  9. Occurrence of Hepatozoon canis (Adeleorina: Hepatozoidae) and Anaplasma spp. (Rickettsiales: Anaplasmataceae) in black-backed jackals (Canis mesomelas) in South Africa.

    Science.gov (United States)

    Penzhorn, Barend L; Netherlands, Edward C; Cook, Courtney A; Smit, Nico J; Vorster, Ilse; Harrison-White, Robert F; Oosthuizen, Marinda C

    2018-03-20

    Domestic dogs are not native to sub-Saharan Africa, which may account for their susceptibility to Babesia rossi, of which endemic black-backed jackals (Canis mesomelas) are natural reservoirs. There is virtually no information on the occurrence of potentially pathogenic haemogregarines (e.g. Hepatozoon canis) or even rickettsial bacteria (e.g. Ehrlichia spp. and Anaplasma spp.) in indigenous canids in sub-Saharan Africa. Such organisms could pose a risk to domestic dogs, as well as to populations of endangered indigenous canid species. Genomic DNA extracted from blood samples taken from 126 free-ranging and 16 captive black-backed jackals was subjected to reverse line blot (RLB) hybridization assay; 82 (57.8%) specimens reacted only with the Ehrlichia/Anaplasma genera-specific probe. Full-length bacterial 16S rRNA gene of five of these specimens was cloned and the recombinants sequenced. The ten 16S rDNA sequences obtained were most closely related, with approximately 99% identity, to Anaplasma sp. South African Dog, various uncultured Anaplasma spp., as well as various Anaplasma phagocytophilum genotypes. Ninety-one specimens were screened for haemogregarines through PCR amplification using the 18S rRNA gene; 20 (21.9%) specimens reacted positively, of which 14 (15.4%) were confirmed positive for Hepatozoon genotypes from within H. canis. Two (2.2%) specimens were found positive for two different Hepatozoon genotypes. Sequence analyses confirmed the presence of 16S rDNA sequences closely related to A. phagocytophilum and Anaplasma sp. South African Dog as well as two H. canis genotypes in both free-ranging and captive black-backed jackals. Distinguishing between closely related lineages may provide insight into differences in pathogenicity and virulence of various Anaplasma and H. canis genotypes. By building up a more comprehensive understanding of the range and diversity of the bacteria and eukaryotic organisms (piroplasms and haemogregarines) in the blood of

  10. Endocarditis por Brucella canis: primer caso documentado en un paciente adulto en Argentina Brucella canis endocarditis: first documented case in Argentina

    Directory of Open Access Journals (Sweden)

    Valeria Manias

    2013-03-01

    Full Text Available Se describe el primer caso documentado de endocarditis por Brucella canis en Argentina. El paciente fue un varón adulto que consultó por edemas en miembros inferiores, registros febriles aislados de 2 meses de evolución y dolor precordial opresivo que irradiaba a brazo izquierdo. Negaba contacto con animales de cría o consumo de productos sin pasteurización. Estudios cardiológicos constataron endocarditis infecciosa. Se resuelve cirugía de recambio valvular ante fracaso terapéutico empírico con cefalotina, ampicilina y gentamicina. Los hemocultivos fueron positivos (4 de 4 muestras con bacilos gram negativos. Se realizó la identificación con técnica API 20 NE (bioMérieux, el método automatizado Phoenix (BD y las pruebas bioquímicas convencionales, sin concluir género ni especie. Se derivó la cepa al departamento de Bacteriología Especial INEI-ANLIS "Dr. Carlos G. Malbrán" donde se identificó al aislamiento como Brucella canis. Se rotó el esquema terapéutico a doxiciclina, rifampicina y trimetoprima-sulfametoxazol con buena evolución. La importancia del caso radica en la posible falla del tratamiento antimicrobiano empírico administrado para endocarditis, ya que B. canis no responde a los antimicrobianos convencionales para esta patología.We herein present the case of an adult male patient who consulted for lower extremity edema, a 2- month history of fever and oppressive chest pain radiating to the left arm. He referred neither contact with breeding animals nor consumption of unpasteurized dairy products. A diagnosis of endocarditis was confirmed by cardiac studies. Since the empirical treatment with cephalotin, ampicillin and gentamicin failed, the patient underwent aortic valve replacement. A total of four blood cultures were positive with a gram-negative rod. Bacterial identification was performed using the API 20 NE technique (bioMerieux, the Phoenix automated method (BD and conventional biochemical tests which were

  11. Franchising Theme Parks : Disneyland Paris inFocus

    OpenAIRE

    Kocsis, Kinga

    2014-01-01

    The report consisted of the analysis of theoretical frameworks of franchise and using franchising as a promotional method of theme parks. The definition of franchise and the use, right and regulations of it are essential knowledge to understand the base of franchise based theme parks. Also it was analyzed how franchising affects tourism in specific fields of existing franchises. The role of a franchise in our society and its values was also taken into consideration. The values and the role of...

  12. Underdeveloped Themes in Qualitative Research: Relationship With Interviews and Analysis.

    Science.gov (United States)

    Connelly, Lynne M; Peltzer, Jill N

    2016-01-01

    In this methodological article, the authors address the problem of underdeveloped themes in qualitative studies they have reviewed. Various possible reasons for underdeveloped themes are examined, and suggestions offered. Each problem area is explored, and literature support is provided. The suggestions that are offered are supported by the literature as well. The problem with underdeveloped themes in certain articles is related to 3 interconnected issues: (a) lack of clear relationship to the underlying research method, (b) an apparent lack of depth in interviewing techniques, and (c) lack of depth in the analysis. Underdeveloped themes in a qualitative study can lead to a lack of substantive findings that have meaningful implications for practice, research, and the nursing profession, as well as the rejection of articles for publication. Fully developed themes require knowledge about the paradigm of qualitative research, the methodology that is proposed, the effective techniques of interviewing that can produce rich data with examples and experiences, and analysis that goes beyond superficial reporting of what the participants have said. Analytic problem areas include premature closure, anxiety about how to analyze, and confusion about categories and themes. Effective qualitative research takes time and effort and is not as easy as is sometimes presumed. The usefulness of findings depends on researchers improving their research skills and practices. Increasingly researchers are using qualitative research to explore clinically important issues. As consumers of research or members of a research team, clinical nurse specialists need to understand the nature of this research that can provide in-depth insight and meaning.

  13. Promising Themes for Antismoking Campaigns Targeting Youth and Young Adults.

    Science.gov (United States)

    Brennan, Emily; Gibson, Laura A; Kybert-Momjian, Ani; Liu, Jiaying; Hornik, Robert C

    2017-01-01

    Behavior change campaigns typically try to change beliefs that influence behaviors, with targeted beliefs comprising the campaign theme. We present an empirical approach for choosing among a large number of potential themes, and results from the implementation of this approach for campaigns aimed at 4 behavioral targets: (1) preventing smoking initiation among youth, and (2) preventing initiation, (3) stopping progression to daily smoking and (4) encouraging cessation among young adults. An online survey of 13- to 17-year-olds and 18- to 25-year-olds in the United States (US), in which 20 potential campaign themes were represented by 154 beliefs. For each behavioral target, themes were ranked based on the strength of belief-intention and belief-behavior associations and size of the population not already endorsing the beliefs. The most promising themes varied across behavioral targets but 3 were consistently promising: consequences of smoking for mood, social acceptance and social popularity. Using a robust and systematic approach, this study provides campaign developers with empirical data to inform their selection of promising themes. Findings related to the campaign to prevent initiation among youth informed the development of the US Food and Drug Administration's "The Real Cost" campaign.

  14. Genome characterization and population genetic structure of the zoonotic pathogen, Streptococcus canis

    Directory of Open Access Journals (Sweden)

    Richards Vincent P

    2012-12-01

    Full Text Available Abstract Background Streptococcus canis is an important opportunistic pathogen of dogs and cats that can also infect a wide range of additional mammals including cows where it can cause mastitis. It is also an emerging human pathogen. Results Here we provide characterization of the first genome sequence for this species, strain FSL S3-227 (milk isolate from a cow with an intra-mammary infection. A diverse array of putative virulence factors was encoded by the S. canis FSL S3-227 genome. Approximately 75% of these gene sequences were homologous to known Streptococcal virulence factors involved in invasion, evasion, and colonization. Present in the genome are multiple potentially mobile genetic elements (MGEs [plasmid, phage, integrative conjugative element (ICE] and comparison to other species provided convincing evidence for lateral gene transfer (LGT between S. canis and two additional bovine mastitis causing pathogens (Streptococcus agalactiae, and Streptococcus dysgalactiae subsp. dysgalactiae, with this transfer possibly contributing to host adaptation. Population structure among isolates obtained from Europe and USA [bovine = 56, canine = 26, and feline = 1] was explored. Ribotyping of all isolates and multi locus sequence typing (MLST of a subset of the isolates (n = 45 detected significant differentiation between bovine and canine isolates (Fisher exact test: P = 0.0000 [ribotypes], P = 0.0030 [sequence types], suggesting possible host adaptation of some genotypes. Concurrently, the ancestral clonal complex (54% of isolates occurred in many tissue types, all hosts, and all geographic locations suggesting the possibility of a wide and diverse niche. Conclusion This study provides evidence highlighting the importance of LGT in the evolution of the bacteria S. canis, specifically, its possible role in host adaptation and acquisition of virulence factors. Furthermore, recent LGT detected between S. canis and human

  15. Genome characterization and population genetic structure of the zoonotic pathogen, Streptococcus canis.

    Science.gov (United States)

    Richards, Vincent P; Zadoks, Ruth N; Pavinski Bitar, Paulina D; Lefébure, Tristan; Lang, Ping; Werner, Brenda; Tikofsky, Linda; Moroni, Paolo; Stanhope, Michael J

    2012-12-18

    Streptococcus canis is an important opportunistic pathogen of dogs and cats that can also infect a wide range of additional mammals including cows where it can cause mastitis. It is also an emerging human pathogen. Here we provide characterization of the first genome sequence for this species, strain FSL S3-227 (milk isolate from a cow with an intra-mammary infection). A diverse array of putative virulence factors was encoded by the S. canis FSL S3-227 genome. Approximately 75% of these gene sequences were homologous to known Streptococcal virulence factors involved in invasion, evasion, and colonization. Present in the genome are multiple potentially mobile genetic elements (MGEs) [plasmid, phage, integrative conjugative element (ICE)] and comparison to other species provided convincing evidence for lateral gene transfer (LGT) between S. canis and two additional bovine mastitis causing pathogens (Streptococcus agalactiae, and Streptococcus dysgalactiae subsp. dysgalactiae), with this transfer possibly contributing to host adaptation. Population structure among isolates obtained from Europe and USA [bovine = 56, canine = 26, and feline = 1] was explored. Ribotyping of all isolates and multi locus sequence typing (MLST) of a subset of the isolates (n = 45) detected significant differentiation between bovine and canine isolates (Fisher exact test: P = 0.0000 [ribotypes], P = 0.0030 [sequence types]), suggesting possible host adaptation of some genotypes. Concurrently, the ancestral clonal complex (54% of isolates) occurred in many tissue types, all hosts, and all geographic locations suggesting the possibility of a wide and diverse niche. This study provides evidence highlighting the importance of LGT in the evolution of the bacteria S. canis, specifically, its possible role in host adaptation and acquisition of virulence factors. Furthermore, recent LGT detected between S. canis and human bacteria (Streptococcus urinalis) is cause for concern

  16. Clinical Sarcocystis neurona, Sarcocystis canis, Toxoplasma gondii, and Neospora caninum infections in dogs.

    Science.gov (United States)

    Dubey, J P; Chapman, Jennifer L; Rosenthal, Benjamin M; Mense, M; Schueler, Ronald L

    2006-04-15

    Sarcocystis neurona, Sarcocystis canis, Toxoplasma gondii, and Neospora caninum are related apicomplexans that can cause systemic illness in many species of animals, including dogs. We investigated one breeder's 25 Basset Hounds for these infections. In addition, tissues from dogs and other non-canine hosts previously reported as S. canis infections were studied retrospectively. Schizonts resembling those of S. neurona, and recognized by polyclonal rabbit anti-S. neurona antibodies, were found in six of eight retrospective cases, as well as in two additional dogs (one Basset Hound, one Springer Spaniel) not previously reported. S. neurona schizonts were found in several tissues including the central nervous system, lungs, and kidneys. Fatal toxoplasmosis was diagnosed in an adult dog, and neosporosis was diagnosed in an adult and a pup related to the one diagnosed with S. neurona. No serological reactivity to S. neurona antibodies occurred when S. canis-like liver schizonts were retrospectively assayed from two dogs, a dolphin, a sea lion, a horse, a chinchilla, a black or either of two polar bears. Sequencing conserved (18S) and variable (ITS-1) portions of nuclear ribosomal DNA isolated from the schizont-laden liver of a polar bear distinguished it from all previously characterized species of Sarcocystis. We take this genetic signature as provisionally representative of S. canis, an assumption that should be tested with future sequencing of similar liver infections in other mammalian hosts. These findings further extend the uncharacteristically broad intermediate host range for S. neurona, which also causes a neurologic disease in cats, mink, raccoons, skunks, Pacific harbor seals, ponies, zebras, lynxes, and sea otters. Further work is necessary to delineate the causative agent(s) of other cases of canine sarcocystosis, and in particular to specify the attributes of S. canis, which corresponds morphologically to infections reported from wide range of terrestrial

  17. Serological survey of Brucella canis in dogs in urban Harare and selected rural communities in Zimbabwe

    Directory of Open Access Journals (Sweden)

    Simbarashe Chinyoka

    2014-04-01

    Full Text Available A cross-sectional study was conducted in order to detect antibodies for Brucella canis (B. canis in dogs from urban Harare and five selected rural communities in Zimbabwe. Sera from randomly selected dogs were tested for antibodies to B. canis using an enzyme-linked immunosorbent assay. Overall, 17.6% of sera samples tested (57/324, 95% CI: 13.5–21.7 were positive for B. canis antibodies. For rural dogs, seroprevalence varied from 11.7% – 37.9%. Rural dogs recorded a higher seroprevalence (20.7%, 95% CI: 15.0–26.4 compared with Harare urban dogs (12.7%, 95% CI: 6.9–18.5 but the difference was not significant (p = 0.07. Female dogs from both sectors had a higher seroprevalence compared with males, but the differences were not significant (p > 0.05. Five and two of the positive rural dogs had titres of 1:800 and 1:1600, respectively, whilst none of the positive urban dogs had a titre above 1:400. This study showed that brucellosis was present and could be considered a risk to dogs from the studied areas. Further studies are recommended in order to give insight into the epidemiology of brucellosis in dogs and its possible zoonotic consequences in Zimbabwe. Screening for other Brucella spp. (Brucella abortus, Brucella melitensis and Brucella suis other than B. canis is also recommended.

  18. Genome characterization and population genetic structure of the zoonotic pathogen, Streptococcus canis

    Science.gov (United States)

    2012-01-01

    Background Streptococcus canis is an important opportunistic pathogen of dogs and cats that can also infect a wide range of additional mammals including cows where it can cause mastitis. It is also an emerging human pathogen. Results Here we provide characterization of the first genome sequence for this species, strain FSL S3-227 (milk isolate from a cow with an intra-mammary infection). A diverse array of putative virulence factors was encoded by the S. canis FSL S3-227 genome. Approximately 75% of these gene sequences were homologous to known Streptococcal virulence factors involved in invasion, evasion, and colonization. Present in the genome are multiple potentially mobile genetic elements (MGEs) [plasmid, phage, integrative conjugative element (ICE)] and comparison to other species provided convincing evidence for lateral gene transfer (LGT) between S. canis and two additional bovine mastitis causing pathogens (Streptococcus agalactiae, and Streptococcus dysgalactiae subsp. dysgalactiae), with this transfer possibly contributing to host adaptation. Population structure among isolates obtained from Europe and USA [bovine = 56, canine = 26, and feline = 1] was explored. Ribotyping of all isolates and multi locus sequence typing (MLST) of a subset of the isolates (n = 45) detected significant differentiation between bovine and canine isolates (Fisher exact test: P = 0.0000 [ribotypes], P = 0.0030 [sequence types]), suggesting possible host adaptation of some genotypes. Concurrently, the ancestral clonal complex (54% of isolates) occurred in many tissue types, all hosts, and all geographic locations suggesting the possibility of a wide and diverse niche. Conclusion This study provides evidence highlighting the importance of LGT in the evolution of the bacteria S. canis, specifically, its possible role in host adaptation and acquisition of virulence factors. Furthermore, recent LGT detected between S. canis and human bacteria (Streptococcus

  19. Diphyllobothrium pacificum (Nybelin, 1931) Margolis, 1956 en Canis familiaris de la ciudad de Chincha, Perú

    OpenAIRE

    Cabrera, Ch; Tantaleán V, Manuel; Rojas M, Ricardo

    2001-01-01

    In this communication is presented the finding of the tapeworm Diphyllobothrium pacificum, parasite of sea lions, in Canis familiaris (dog) in Chincha city, Peru. This is the first canine infection with D. pacificum in the South Peruvian coast

  20. Composing the theme of city to be diverse and sustainable

    Science.gov (United States)

    Wiranegara, H. W.

    2018-01-01

    To give a path for developing a city needs a theme. City’s goal stated in a document of a spatial plan were too broad and insufficient detail in giving a direction. To make more detail and precise, every city has to compose a city theme. It is developed based on the potential, the uniqueness, the excellence, and the sustainability of its human resources, natural resources, and man-made resources. An integration among the three of resources which have the highest score become a theme of the city. The aim of this research was to formulate the conceptual framework to compose a city theme. The research design was the interview survey in Banda Aceh, Banjarmasin, and Kupang. Informants were the government officials, academics, figures, the private sector and public who considered related to the intended information being collected. Having set the conceptual framework, the interview directed to check the implementation in realities. The result was that the conceptual framework could accommodate the phenomenon of composing the theme of the city. Yet, it was a preliminary in nature and needed more research to get a complete result.

  1. Detection of Babesia canis vogeli and Hepatozoon canis in canine blood by a single-tube real-time fluorescence resonance energy transfer polymerase chain reaction assay and melting curve analysis.

    Science.gov (United States)

    Kongklieng, Amornmas; Intapan, Pewpan M; Boonmars, Thidarut; Thanchomnang, Tongjit; Janwan, Penchom; Sanpool, Oranuch; Lulitanond, Viraphong; Taweethavonsawat, Piyanan; Chungpivat, Sudchit; Maleewong, Wanchai

    2015-03-01

    A real-time fluorescence resonance energy transfer polymerase chain reaction (qFRET PCR) coupled with melting curve analysis was developed for detection of Babesia canis vogeli and Hepatozoon canis infections in canine blood samples in a single tube assay. The target of the assay was a region within the 18S ribosomal RNA gene amplified in either species by a single pair of primers. Following amplification from the DNA of infected dog blood, a fluorescence melting curve analysis was done. The 2 species, B. canis vogeli and H. canis, could be detected and differentiated in infected dog blood samples (n = 37) with high sensitivity (100%). The detection limit for B. canis vogeli was 15 copies of a positive control plasmid, and for H. canis, it was 150 copies of a positive control plasmid. The assay could simultaneously distinguish the DNA of both parasites from the DNA of controls. Blood samples from 5 noninfected dogs were negative, indicating high specificity. Several samples can be run at the same time. The assay can reduce misdiagnosis and the time associated with microscopic examination, and is not prone to the carryover contamination associated with the agarose gel electrophoresis step of conventional PCR. In addition, this qFRET PCR method would be useful to accurately determine the range of endemic areas or to discover those areas where the 2 parasites co-circulate. © 2015 The Author(s).

  2. Occurrence of Hepatozoon canis and Cercopithifilaria bainae in an off-host population of Rhipicephalus sanguineus sensu lato ticks.

    Science.gov (United States)

    Ramos, Rafael Antonio Nascimento; Giannelli, Alessio; Carbone, Domenico; Baneth, Gad; Dantas-Torres, Filipe; Otranto, Domenico

    2014-04-01

    Hepatozoon canis (Eucoccidiorida, Hepatozoidae) and the filarioid Cercopithifilaria bainae (Spirurida, Onchocercidae) are tick-transmitted infectious agents of dogs, highly prevalent in the Mediterranean basin in association with Rhipicephalus sanguineus sensu lato. Ticks were collected from the environment every 25±2 days in a confined location in southern Italy where a community of dogs lives, from August 2012 to July 2013. In order to study the occurrence of H. canis and C. bainae, 1091 tick specimens (770 adults; 271 nymphs, and 50 larvae) were dissected, and oocysts of H. canis and larvae of C. bainae were morphologically identified. Out of 1091 dissected ticks, 13.47% (n=147) were positive for H. canis, with the highest prevalence recorded in unfed adults (16.4%; 126/770), followed by nymphs collected as larvae and allowed to moult (14%; 7/50), unfed nymphs dissected immediately after collection (3%; 8/271), and adults collected as nymphs and allowed to moult (2%; 6/271). The highest number of H. canis-positive ticks (35.5%; 43/121; Pcanis and C. bainae infections in the study area seem to be dependent on the seasonality of vector tick populations. Hence, dogs living in these areas are more exposed to both pathogens during the warmer months. These findings provide new insights into the ecology of both H. canis and C. bainae. Copyright © 2014 Elsevier GmbH. All rights reserved.

  3. How to Mitigate Theme Park Crowding? A Prospective Coordination Approach

    Directory of Open Access Journals (Sweden)

    Yuguo Yuan

    2018-01-01

    Full Text Available Crowding is a key factor in tourists’ experience in theme parks, and mitigating crowding makes parks more competitive. This study examines how to effectively mitigate crowding in theme parks. First, a Markov-based method is developed to predict the spatial-temporal distribution of tourists in the park. Then, a prospective coordination approach based on the tourist distribution prediction is proposed. To evaluate the performance of this approach, an experiment is constructed using an agent-based simulation platform. The results indicate that the proposed method significantly outperforms existing methods. Furthermore, we conduct two experiments and, based on the results, offer several recommendations for crowd management.

  4. A Literature Analysis of Themes in Paediatric Cochlear Implant Research

    DEFF Research Database (Denmark)

    Hendar, Nils Ola Ebbe; Dammeyer, Jesper Herup

    2015-01-01

    with typical hearing and children with hearing impairment without CI. Published research in the period 1990-2013 on language development was analysed with respect to frequency of selected search terms reflecting different language acquisition themes among children with typical hearing, children with hearing...... impairment without CI, and children with CI, respectively. Results showed a relatively lower number of articles which included themes such as pre-verbal language (imitation, joint attention and gestures), extra lingual abilities (social interaction), and later language skills (semantic, syntactic, grammar...

  5. Molecular mechanism of serine/threonine protein phosphatase 1 (PP1cα-PP1r7) in spermatogenesis of Toxocara canis.

    Science.gov (United States)

    Ma, Guang Xu; Zhou, Rong Qiong; Song, Zhen Hui; Zhu, Hong Hong; Zhou, Zuo Yong; Zeng, Yuan Qin

    2015-09-01

    Toxocariasis is one of the most important, but neglected, zoonoses, which is mainly caused by Toxocara canis. To better understand the role of serine/threonine protein phosphatase 1 (PP1) in reproductive processes of male adult T. canis, differential expression analysis was used to reveal the profiles of PP1 catalytic subunit α (PP1cα) gene Tc-stp-1 and PP1 regulatory subunit 7 (PP1r7) gene TcM-1309. Indirect fluorescence immunocytochemistry was carried out to determine the subcellular distribution of PP1cα. Double-stranded RNA interference (RNAi) assays were employed to illustrate the function and mechanism of PP1cα in male adult reproduction. Real-time quantitative PCR (qPCR) showed transcriptional consistency of Tc-stp-1 and TcM-1309 in sperm-producing germline tissues and localization research showed cytoplasmic distribution of PP1cα in sf9 cells, which indicated relevant involvements of PP1cα and PP1r7 in spermatogenesis. Moreover, spatiotemporal transcriptional differences of Tc-stp-1 were determined by gene knockdown analysis, which revealed abnormal morphologies and blocked meiotic divisions of spermatocytes by phenotypic aberration scanning, thereby highlighting the crucial involvement of PP1cα in spermatogenesis. These results revealed a PP1cα-PP1r7 mechanism by which PP1 regulates kinetochore-microtubule interactions in spermatogenesis and provided important clues to identify novel drug or vaccine targets for toxocariasis control. Copyright © 2015 Elsevier B.V. All rights reserved.

  6. Molecular detection of Anaplasma platys, Ehrlichia canis, Hepatozoon canis and Rickettsia monacensis in dogs from Maio Island of Cape Verde archipelago.

    Science.gov (United States)

    Lauzi, Stefania; Maia, João P; Epis, Sara; Marcos, Ricardo; Pereira, Cristina; Luzzago, Camilla; Santos, Marta; Puente-Payo, Pablo; Giordano, Alessia; Pajoro, Massimo; Sironi, Giuseppe; Faustino, Augusto

    2016-07-01

    Tick-borne diseases are emerging worldwide and have an important zoonotic relevance. Dogs play an important role in the epidemiology of several zoonotic tick-borne pathogens acting as sentinels and/or reservoirs. This study focused on the molecular identification of tick-borne pathogens in blood samples of 153 autochthonous asymptomatic dogs in Maio Island, Cape Verde archipelago. Eighty-four (54.9%) dogs were positive for one or more pathogens. Fifty-five (35.9%) dogs were infected with Hepatozoon canis, 53 (34.6%) with Anaplasma platys, five (3.3%) with Ehrlichia canis and Rickettsia monacensis, an emerging human pathogen, was also identified in a single dog (0.7%). The former three pathogens cause important canine tick-borne diseases that are transmitted or potentially transmitted by Rhipicephalus sanguineus s.l., the only hard tick identified in Cape Verde. Furthermore, Wolbachia spp. was amplified from the blood of one dog. None of the dogs were positive for Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Midichloria mitochondrii, Bartonella spp., Babesia spp. or Theileria spp. Fifty-four (35.3%) animals showed single infections and 30 (19.6%) co-infections, with A. platys and H. canis co-infection being the most frequent (28 dogs, 18.3%). The frequency of E. canis infection was statistically different among age groups (P=0.017), being higher among dogs older than 4 years compared to younger dogs. Infection by A. platys was also statistically different among age groups (P=0.031), being higher in dogs younger than 2 years compared to older dogs. The statistical analyses showed no significant association of PCR positivity with gender or location. The frequency of tick-borne pathogens detected in dogs in Maio Island, including R. monacensis, highlights the need to improve diagnosis and control in order to prevent the risk of transmission of these pathogens among dogs and humans living in or travelling to this touristic island. Copyright © 2016

  7. Duplex quantitative real-time PCR assay for the detection and discrimination of the eggs of Toxocara canis and Toxocara cati (Nematoda, Ascaridoidea) in soil and fecal samples

    OpenAIRE

    Durant, Jean-Francois; Irenge, Leonid M; Fogt-Wyrwas, Renata; Dumont, Catherine; Doucet, Jean-Pierre; Mignon, Bernard; Losson, Bertrand; Gala, Jean-Luc

    2012-01-01

    Abstract Background Toxocarosis is a zoonotic disease caused by Toxocara canis (T. canis) and/or Toxocara cati (T. cati), two worldwide distributed roundworms which are parasites of canids and felids, respectively. Infections of humans occur through ingestion of embryonated eggs of T. canis or T. cati, when playing with soils contaminated with dogs or cats feces. Accordingly, the assessment of potential contamination of these areas with these roundworms eggs is paramount. Methods A duplex qua...

  8. Skin impression with acetate tape in Demodex canis and Scarcoptes scabiei var. vulpes diagnosis

    Directory of Open Access Journals (Sweden)

    D.T. Pereira

    2015-02-01

    Full Text Available This study compares the efficacy of skin impression with acetate tape and the deep skin scraping test to find D. canis and S. scabiei in dogs. During six months, 134 samples were collected by both techniques from 115 dogs treated at the dermatology service of the Veterinary Hospital of the Federal University of Santa Maria (HVU-UFSM. Of these patients, 27 had demodicosis and 12 had scabies. The impression with acetate tape test (ITT was shown to be significantly superior to the deep skin scraping test (DSST in finding D. canis and S. scabiei mites (p = 0.007. Based on our results we could conclude that acetate tape impression is a reliable method for diagnosing and monitoring therapy of dermatopathies caused by mites and can be used to replace the traditional deep skin scraping method. In addition, since it is less traumatic for the dog, this method shows more acceptance by the owner.

  9. Prevalence and Characteristics of Streptococcus canis Strains Isolated from Dogs and Cats

    Directory of Open Access Journals (Sweden)

    P. Lysková

    2007-01-01

    Full Text Available To determine the prevalence of Streptococcus canis in dogs and cats, a total of 926 swabs were examined bacteriologically in the period from 2003 to 2005. Eighty-six isolates obtained from various anatomical locations were further characterized for their phenotypic properties. The most frequently isolated biotype produced phosphatase, leucine amidopeptidase, arginine dihydrolase, alpha-D- and beta-D-galactosidase and fermented lactose and ribose. Additional identification by species-specific amplification of the 16S-23S rRNA intergenic spacer region was consistent with S. canis. All isolates were susceptible to penicillin G and ampicillin. The least effective antimicrobial agent was found to be tetracycline (only 33.8% of susceptible strains.

  10. ANTIFUNGAL ACTIVITY OF Cymbopogon nardus (L. Rendle (CITRONELLA AGAINST Microsporum canis FROM ANIMALS AND HOME ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    Isis Regina Grenier CAPOCI

    2015-12-01

    Full Text Available Dermatophytosis is a common zoonosis in urban centers. Dogs and cats have played an important role as its disseminators. Environmental decontamination is essential for the prevention of its propagation to humans and animals. However, sanitizers or disinfectants with antifungal activity, currently available, have high toxicity. The present study evaluated the in vitro effects of an extract of citronella (Cymbopogon nardus on 31 Microsporum canis isolates from animals and home environments. Susceptibility tests were performed based on document M38-A2 (2008 of the Clinical and Laboratory Standards Institute with modifications for natural products. Although susceptibility variation was observed between the fungus tested, the concentrations that inhibited the growth of 50 and 90% of the microorganisms were low (19.5 and 78 µg/mL, respectively. Thus, this citronella extract showed potent fungistatic and fungicide activities against M. canis isolated from animals and home environments. Therefore, it could be an alternative for dermatophytosis prophylaxis in the home environment.

  11. CANIS LUPUS (MAMMALIA, CANIDAE FROM THE LATE PLEISTOCENE DEPOSIT OF AVETRANA (TARANTO, SOUTHERN ITALY

    Directory of Open Access Journals (Sweden)

    DAVIDE F.BERTÈ

    2014-11-01

    Full Text Available Here we described the remains of Canis lupus from the bed 8 of Avetrana karst filling (Late Pleistocene; Taranto, Southern Italy. The studied specimens are larger than those collected from the early Late Pleistocene Apulian localities and those referred to the recent Italian wolf. Moreover, the remains from Avetrana are morphometrically close to Canis lupus maximus from France and to C. lupus collected from Central and Northern Italian localities, chronologically related to MIS 2 and MIS 3. Morphologically, the studied specimens slightly differ from both C. l. maximus and other Pleistocene Apulian wolves. The dimensional differences between the Avetrana wolves and those collected from the other early Late Pleistocene Apulian localities could be explained through a spread of a large-sized morphotype from the Northern Italy.

  12. Investigations of prevalence of antibodies to B.canis in stray dogs in territory of Belgrade

    Directory of Open Access Journals (Sweden)

    Radojičić Sonja

    2006-01-01

    Full Text Available The paper covers investigations of stray dogs in the territory of the city of Belgrade. A total of 184 blood serum samples were examined for the presence of antibodies specific to Brucella canis. The method of slow agglutination in a test tube with 2- mercaptoethanol was used in the diagnostic procedure. Of the 184 examined serums, 49 (26.63% had a titer of 1/50, 25 serums had a titer of 1/100 (13.58%, while 20 serums had a titer equal to or bigger than 1/200 (10.87%. Furthermore, 15 samples of full blood from serologiclly negative animals were also presented for isolation. The bacteriological finding for these samples was negative. The obtained results indicate that the number of seropositive stray dogs in the territory of Belgrade is extremely high and that 10.87% of the testes animals are definitely infected with Brucella canis.

  13. AN INTERFEROMETRIC SPECTRAL LINE AND IMAGING SURVEY OF VY CANIS MAJORIS IN THE 345 GHz BAND

    International Nuclear Information System (INIS)

    Kamiński, T.; Menten, K. M.; Gottlieb, C. A.; Young, K. H.; Patel, N. A.

    2013-01-01

    A spectral line survey of the oxygen-rich red supergiant VY Canis Majoris was made between 279 and 355 GHz with the Submillimeter Array (SMA). Two hundred twenty-three spectral features from 19 molecules (not counting isotopic species of some of them) were observed, including the rotational spectra of TiO, TiO 2 , and AlCl for the first time in this source. The parameters and an atlas of all spectral features are presented. Observations of each line with a synthesized beam of ∼0.''9, reveal the complex kinematics and morphology of the nebula surrounding VY CMa. Many of the molecules are observed in high-lying rotational levels or in excited vibrational levels. From these, it was established that the main source of the submillimeter-wave continuum (dust) and the high-excitation molecular gas (the star) are separated by about 0.''15. Apparent coincidences between the molecular gas observed with the SMA, and some of the arcs and knots observed at infrared wavelengths and in the optical scattered light by the Hubble Space Telescope are identified. The observations presented here provide important constraints on the molecular chemistry in oxygen-dominated circumstellar environments and a deeper picture of the complex circumstellar environment of VY CMa

  14. Being a victim or an aggressor: Different functions of triadic post-conflict interactions in wolves (Canis lupus lupus).

    Science.gov (United States)

    Cordoni, Giada; Palagi, Elisabetta

    2015-01-01

    Animals adopt different behavioral strategies to cope with the conflict of interests coming from the competition over limited resources. Starting from the study on chimpanzees, post-conflict third-party affiliation (the affiliative contact provided by a third-party toward the victim--VTA--or the aggressor--ATA) was investigated mainly in primates. Later, this post-conflict mechanism has been demonstrated also in other mammals, such as wallabies, horses, dolphins, domestic dogs, and wolves. Here, we present data on triadic post-conflict affiliation in wolves (Canis lupus lupus) by exploring some of the hypotheses already proposed for primates and never tested before in other social mammals. In this carnivore species, the study of VTA and ATA revealed that these strategies cannot be considered as a unique behavioral category since they differ in many functional aspects. VTA serves to protect the victim by reducing the likelihood of reiterated attacks from the previous aggressor and to reinforce the relationship shared by the third-party and the victim. On the other hand, ATA has a role in bystander protection by limiting the renewed attacks of the previous aggressor toward uninvolved group-members (potential third-parties). In conclusion, exploring VTA and ATA gives the opportunity to concurrently demonstrate some functional differences in triadic post-conflict affiliation according to the different targets of bystanders (victims or aggressors). The data comparison between primates and other social mammals should permit to open new lines of research. © 2015 Wiley Periodicals, Inc.

  15. Celebrating Love in All Shades: YA Books with LGBTQ Themes

    Science.gov (United States)

    Letcher, Mark, Ed.

    2009-01-01

    In this article, the author highlights outstanding literature written for young adults that contains LGBTQ (lesbian, gay, bisexual, transgender, queer/questioning) themes, or contains LGBTQ characters. One of the most critically hailed books with LGBTQ characters from 2007 was Perry Moore's debut novel, "Hero" (Hyperion). This book won the Lambda…

  16. Identifying and Addressing Themes of Job Dissatisfaction for Secondary Principals

    Science.gov (United States)

    De Jong, David; Grundmeyer, Trent; Yankey, Julie

    2017-01-01

    Secondary principals serve in important roles that are complex, high-stress, and include demanding job responsibilities. Key stakeholders such as superintendents, school board members, and legislators must understand the challenges facing secondary principals in order to address the current themes of job dissatisfaction. Using new survey data…

  17. Rendezvous with the World: Missouri Southern State University's Themed Semesters

    Science.gov (United States)

    Stebbins, Chad

    2011-01-01

    Although most universities emphasize study abroad as the primary vehicle to internationalize the campus, in reality only a small percentage of students actually participate in this endeavor. The internationally themed semesters at Missouri Southern State University (MSSU) reach virtually every student, and provide a global perspective and cultural…

  18. "Community" as a Guiding Theme for the Public Speaking Course

    Science.gov (United States)

    Swenson-Lepper, Tammy

    2012-01-01

    First-year students at many universities find themselves in new communities, with little understanding of how their new university, city, academic, or career communities function. Developing a student's sense of community can have long-term benefits. Using the theme of "Community" in the basic public speaking course provides students with…

  19. Language and Theme Symbiosis: A Stylistic Analysis of use of ...

    African Journals Online (AJOL)

    ... parallelism, balanced construction, figures of speech, idioms, and proverbs to reinforce the themes. The enormous use of titles and aliases and the undue emphasis on their use before people's name not only speak volumes about vainglory but also give the work a touch of humour. The language is etched with meticulous ...

  20. Themes of Idealism and Nostalgia in Negritude Poetry | Okune ...

    African Journals Online (AJOL)

    The central thrust of this paper is on the themes of idealism and nostalgia in Negritude poetry. Some critics regard negritude poetry as being sentimental and idealistic. Though true, this observation may be explained by the fact that the historical antecedence that gave rise to this literacy art form, in the first place, ...

  1. Themes and Interplay of Beliefs in Mathematical Reasoning

    Science.gov (United States)

    Sumpter, Lovisa

    2013-01-01

    Upper secondary students' task solving reasoning was analysed with a focus on arguments for strategy choices and conclusions. Passages in their arguments for reasoning that indicated the students' beliefs were identified and, by using a thematic analysis, categorized. The results stress three themes of beliefs used as arguments for…

  2. Picking up the Pieces: Themes in Macedonian Midcareer Transitions

    Science.gov (United States)

    Sudnik, Paul

    2012-01-01

    Addressing midcareer transition in post-socialist Macedonia, this work sought to provide practical help to participants through a range of techniques. Four themes are identified as important options for transitioners. Enthusiasm for "entrepreneurship" is tempered by a lack of funds and "portfolio careers" are also viewed with…

  3. Themes in Spirit Possession in Ugandan Christianity | James ...

    African Journals Online (AJOL)

    . This paper discerns a number of common themes that run through many of these experiences. In particular, sex as a motif for deviance and evil is noted as a common feature of many of the possession stories and all contact with spirits is seen ...

  4. Trends in Literacy Software Publication and Marketing: Multicultural Themes.

    Science.gov (United States)

    Balajthy, Ernest

    This article provides data and discussion of multicultural theme-related issues arising from analysis of a detailed database of commercial software products targeted to reading and literacy education. The database consisted of 1152 titles, representing the offerings of 104 publishers and distributors. Of the titles, 62 were identified as having…

  5. Museums as Theme Parks - A Possible Marketing Approach?

    Directory of Open Access Journals (Sweden)

    Alexandra ZBUCHEA

    2015-09-01

    Full Text Available Museums compete increasingly more with very diverse entertainment providers, such as theme parks, despite the fact that their offer is mainly cultural. Museums have had to be more active and they have had to diversify their offer, in order to be more popular, therefore to better achieve their complex cultural missions. They should be more “market oriented” and aim to develop their programs according with their visitors’ needs and desires, as well as with the evolutions in the contemporary society.  One answer to this challenge would be the controversial theme parkisation of museums. The paper discusses in what extent the market approach of theme parks could be a viable marketing strategy for museums. It underlines several differences and similarities between the marketing approaches of museums and theme parks, in order to better understand how a museum could preserve its cultural functions, while obtaining economic success. Only the latter would allow it to better develop its cultural activity and thus to better serve its visitors and the community.

  6. New Themes and Approaches in Second Language Motivation Research.

    Science.gov (United States)

    Dornyei, Zoltan

    2001-01-01

    Provides an overview of the current themes and research directions in second language motivation research. Argues that the initial research inspiration and standard-setting empirical work on second language motivation originating from Canada has borne fruit by educating a new generation of international scholars who have created a colorful mixture…

  7. Further themes in Christian drama in Nigeria | Agoro | EJOTMAS ...

    African Journals Online (AJOL)

    We have used the following plays to illustrate the themes we are going to discuss in this paper: Cold Wings of Darkness and The Living Dead by A.E Anigala, Trial of the Beautiful Ones by Catherine Acholonu,The Secrets of the Devil, The beginning of the End and The Last Generation by Mike Bamiloye,The Church is the ...

  8. The Great Pyramid Builders: An Integrated Theme on Ancient Egypt

    Science.gov (United States)

    Stone, Brian

    2008-01-01

    This article describes a themed classroom project designed to teach about the culture and civilization of ancient Egypt. In preparing the project, it is noted that teachers should remember that different learning styles, including activities that provide meaningful experiences, are appropriate in accommodating the various ways children learn.…

  9. Reading LGBT-Themed Literature with Young People: What's Possible?

    Science.gov (United States)

    Clark, Caroline T.; Blackburn, Mollie V.

    2009-01-01

    The authors' belief that using LGBT (lesbian, gay, bisexual and transgender)-themed literature in schools is possible and necessary, coupled with students' sense that either it cannot or is not being done, prompted them to write this article. While the authors are sympathetic with students' perspectives, and agree that examples are limited, such…

  10. Using Sustainability Themes and Multidisciplinary Approaches to Enhance STEM Education

    Science.gov (United States)

    Rogers, Michael; Pfaff, Thomas; Hamilton, Jason; Erkan, Ali

    2015-01-01

    Purpose: The purpose of this paper is to report on the Multidisciplinary Sustainability Education Project (MSEP) as a framework using sustainability-themed education modules to introduce students to the need for multidisciplinary approaches to solving twenty-first-century problems while retaining traditional course strengths and content.…

  11. Parasitological detection and molecular evidence of Hepatozoon canis from canines in Manila, Philippines

    OpenAIRE

    Baticados, Waren; Baticados,Waren; Carlos,; Villarba,; Subiaga,; Carlos Sr.,Enrique; Baticados,Abigail

    2011-01-01

    Abigail M Baticados1, Waren N Baticados1, Enrique T Carlos2, Sixto MEAS Carlos2, Lorelie A Villarba1, Sherlyn G Subiaga1, Jomarte M Magcalas11Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Laguna, Philippines; 2Makati Dog and Cat Hospital (MDCH), Makati City, PhilippinesAbstract: Hepatozoon canis infection in canines is allegedly an underreported disease in the Philippines. In over the past four decades, ther...

  12. Molecular identification of Hepatozoon canis in dogs from Campo Grande, Mato Grosso do Sul, Brazil.

    Science.gov (United States)

    Ramos, Carlos Alberto do Nascimento; Babo-Terra, Verônica Jorge; Pedroso, Thatianna Camillo; Souza Filho, Antônio Francisco; de Araújo, Flábio Ribeiro; Cleveland, Herbert Patric Kellermann

    2015-01-01

    The aim of this study was to investigate the occurrence of Hepatozoon species infecting dogs in the municipality of Campo Grande, Mato Grosso do Sul (MS), Brazil, using blood samples (n = 165) drawn from dogs. The species Hepatozoon canis was identified in 3.63% of the tested animals using molecular tools. Further studies are needed to determine the clinical relevance of this infection and the main arthropod vectors involved in its transmission.

  13. Oocysts of Hepatozoon canis in Rhipicephalus (Boophilus) microplus collected from a naturally infected dog.

    Science.gov (United States)

    de Miranda, Renata Lima; de Castro, Jacqueline Ribeiro; Olegário, Maria Marlene Martins; Beletti, Marcelo Emílio; Mundim, Antonio Vicente; O'Dwyer, Lucia Helena; Eyal, Osnat; Talmi-Frank, Dalit; Cury, Márcia Cristina; Baneth, Gad

    2011-05-11

    Canine hepatozoonosis is a tick-borne disease caused by protozoans of the genus Hepatozoon. Several tick species have been implicated as potential vectors. Therefore, extensive studies are needed to determine the 'natural' endemic cycle of this parasite. This paper presents the first report of the presence of Hepatozoon canis oocysts in Rhipicephalus (Boophilus) microplus collected from an infected dog. Copyright © 2011 Elsevier B.V. All rights reserved.

  14. Seroprevalence of Ehrlichia canis, Ehrlichia chaffeensis and Ehrlichia ewingii in dogs in North America

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    Beall Melissa J

    2012-02-01

    Full Text Available Abstract Background This study evaluated the exposure of dogs to three different Ehrlichia spp. in the south and central regions of the United States where vector-borne disease prevalence has been previously difficult to ascertain, particularly beyond the metropolitan areas. Methods Dog blood samples (n = 8,662 were submitted from 14 veterinary colleges, 6 private veterinary practices and 4 diagnostic laboratories across this region. Samples were tested for E. canis, E. chaffeensis and E. ewingii specific antibodies using peptide microtiter ELISAs. Results Overall, E. canis, E. chaffeensis and E. ewingii seroprevalence was 0.8%, 2.8%, and 5.1%, respectively. The highest E. canis seroprevalence (2.3% was found in a region encompassing Arkansas, Louisiana, Oklahoma, Tennessee and Texas. E. chaffeensis seroreactivity was 6.6% in the central region (Arkansas, Kansas, Missouri, and Oklahoma and 4.6% in the southeast region (Georgia, Maryland, North Carolina, South Carolina, Tennessee and Virginia. Seroreactivity to E. ewingii was also highest in the central region (14.6% followed by the southeast region (5.9%. The geospatial pattern derived from E. chaffeensis and E. ewingii seropositive samples was similar to previous reports based on E. chaffeensis seroreactivity in white-tailed deer and the distribution of human monocytic ehrlichiosis (HME cases reported by the CDC. Conclusions The results of this study provide the first large scale regional documentation of exposure to E. canis, E. chaffeensis and E. ewingii in pet dogs, highlighting regional differences in seroprevalence and providing the basis for heightened awareness of these emerging vector-borne pathogens by veterinarians and public health agencies.

  15. In vitro effect of Chrysosporium indicum and Chrysosporium keratinophylum on Toxocara canis eggs.

    Science.gov (United States)

    Bojanich, María V; Basualdo, Juan A; Giusiano, Gustavo

    2017-12-05

    The degree of antagonism exercised by fungi on geohelminth development varies according to the morphological alterations caused by different fungal species. Saprophytic fungi may exert ovicidal or ovistatic effects. The aim of this study was to apply scanning electron microscopy (SEM) to observe the action of two soil saprophytic species of Chrysosporium (C. indicum and C. keratinophylum) on Toxocara canis eggs. The fungal strains to be tested were incubated for 28 days at 28°C in 2% water agar with a suspension of unembryonated T. canis eggs. A suspension of T. canis eggs in 2% water agar was used as control group. The assay was done in triplicate for each fungus and the control group. SEM observations were performed on the 4th, 7th, 14th, 21st, and 28th day after inoculation. The effect of the fungi on eggs was evaluated in accordance with the alterations observed on the surface and the changes in the normal characteristics of the eggs. Hyphae around the eggs, appresoria penetrating the shell and changes in the typical egg membrane were observed in this assay. Type 3 effect (alterations that occur both in the embryo and the shell, and hyphal penetration of the eggs) was the prevalent effect. SEM allowed us to observe clearly the morphological alterations in T. canis eggs due to the effect of C. indicum and C. keratinophylum. Both saprophytic species of Chrysosporium alter the egg structure and alterations increase as exposure increases. Copyright © 2017 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

  16. Restricted evaluation of Trichodectes canis (Phthiraptera: Trichodectidae detection methods in Alaska gray wolves

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    Theresa M. Woldstad

    2014-12-01

    Full Text Available Trichodectes canis (Phthiraptera: Trichodectidae was first documented on Alaska (USA gray wolves (Canis lupus on the Kenai Peninsula in 1981. In subsequent years, numerous wolves exhibited visually apparent, moderate to severe infestations. Currently, the Alaska Department of Fish and Game utilizes visual inspection, histopathology, and potassium hydroxide (KOH hide digestion for T. canis detection. Our objective was to determine optimal sampling locations for T. canis detection. Wolf hides were subjected to lice enumeration using KOH hide digestion. Thirty nine of the 120 wolves examined had lice. Of these 39, total louse burdens ranged from 14 to an extrapolated 80,000. The hides of 12 infested animals were divided into 10 cm by 10 cm subsections and the lice enumerated on a subsection from each of four regions: neck; shoulder; groin; and rump. Combining the data from these 12 wolves, the highest mean proportions of the total louse burdens on individual wolves were found on the rump and differed significantly from the lowest mean proportion on the neck. However, examination of the four subsections failed to detect all infested wolves. Hides from 16 of the 39 infested animals were cut into left and right sides, and each side then cut into four, approximately equal sections: neck and shoulder; chest; abdomen; and rump. Half hides were totally digested from 11 wolves, and whole hides from 5. For these 21 half hides, the highest mean proportions of total louse burdens were found on the rump, and this section had the highest sensitivity for louse detection, regardless of burden. However, removal of this large section from a hide would likely be opposed by hunters and trappers.

  17. Long-distance dispersal connects Dinaric-Balkan and Alpine grey wolf (Canis lupus) populations

    OpenAIRE

    Ražen, Nina; Kljun, Franc; Kos, Ivan; Krofel, Miha; Luštrik, Roman; Majić Skrbinšek, Aleksandra; Potočnik, Hubert

    2017-01-01

    In the last two centuries, persecution and deforestation caused grey wolf Canis lupus populations in Europe to decline. Recently, their numbers started to recover although most populations still remain isolated from one another. This study presents the first documented evidence of the successful reconnection of the Dinaric-Balkan and the Alpine wolf populations via long distance dispersal and subsequent reproduction. A young male wolf radiocollared in the Dinaric Mountains in July...

  18. Loop-mediated isothermal amplification as a reliable assay for Toxocara canis infection in pet dogs.

    Science.gov (United States)

    Khoshakhlagh, Paria; Spotin, Adel; Mahami-Oskouei, Mahmoud; Shahbazi, Abbas; Ozlati, Maryam

    2017-09-01

    Keeping of infected dogs as pet results in the potential transmission risk factors for shedding helminthic infections such as toxocariasis. Lack of accurate identification of Toxocara canis eggs in non-dewormed infected pet dogs remains a diagnostic concern among researchers. In this study, dog owners were asked to fill up a questionnaire regarding their pets and their attitude towards the deworming regimen. One hundred faecal samples were collected from pet dogs (Northwest Iran) and were subsequently identified by the ZnSo4 flotation technique, PCR and loop-mediated isothermal amplification (LAMP) assays. The DNA of the recovered T. canis eggs was then extracted and amplified by LAMP and PCR. Furthermore, ITS2 amplicons were sequenced for appraisal of the phylogenetic analysis. Nine, 5 and 11% of T. canis infections were identified by microscopy, PCR and LAMP, respectively. It was detected that LAMP was 10 times (10 -10 to 10 -13  g/μl) more sensitive than PCR (10 -10 to 10 -12  g/μl). The kappa value between LAMP and PCR indicated a faint concurrence (0.463). The kappa coefficient between LAMP and flotation technique indicated a strong agreement (0.667). The highest infection rate (n = 11) was detected in non-dewormed pet dogs, particularly those less than 3 months old (P canis eggs in infected pet dogs. It was proposed that the dog holder's awareness is insufficient to implement regular deworming schedules. Additionally, regional policymakers should broadly revise anthelmintic treatment guidelines.

  19. Study of cross-reactivity in serum samples from dogs positive for Leishmania sp., Babesia canis and Ehrlichia canis in enzyme-linked immunosorbent assay and indirect fluorescent antibody test Estudo da reatividade cruzada em amostras de soro de cães positivos para Leishmania sp., Babesia canis e Ehrlichia canis, pelo ensaio imunoenzimático indireto e pela reação de imunofluorescência indireta

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    Trícia Maria F. de Sousa Oliveira

    2008-03-01

    Full Text Available To verify the presence of cross-reaction among leishmaniosis, ehrlichiosis and babesiosis in serological diagnostics used in human visceral leishmaniasis control programs, serum samples from leishmaniasis endemic and non-endemic areas were collected and tested by Indirect Fluorescent Antibody (IFAT and Enzyme-linked immunosorbent assay (ELISA. All serum samples from endemic areas were positive for Leishmania sp., by ELISA and IFAT, 51% positive for Babesia canis and 43% for Ehrlichia canis by IFAT. None of the serum samples from non-endemic areas were positive for Leishmania sp., by IFAT, but 67% were positive for B. canis and 78% for E. canis using the same test. When tested by ELISA for Leishmania sp., four samples from non-endemic area were positive. These dogs were then located and no clinical signs, parasites or antibody was detected in new tests for a six month period. Only one of these 4 samples was positive for B. canis by IFAT and ELISA and three for E. canis by IFAT. The results of the work suggest a co-infection in the endemic area and no serological cross-reaction among these parasites by IFAT and ELISA.Para verificar a existência de reação cruzada entre leishmaniose visceral, erliquiose e babesiose, nos testes sorológicos utilizados em programas de controle da leishmaniose visceral humana, amostras de soro canino provenientes de áreas endêmicas e não endêmicas para essa enfermidade, foram testadas pela Reação de Imunofluorescência (RIFI e Ensaio imunoenzimático (ELISA. Todos os soros provenientes de área endêmica foram positivos para Leishmania sp pelo ELISA e RIFI, 51% para Babesia canis e 43% para Ehrlichia canis pela RIFI. Pela RIFI, nenhum dos soros provenientes de área não endêmica foi positivo para Leishmania sp, sendo 67% positivos para B. canis e 78% para E. canis pelo mesmo teste. Quando testados pelo ELISA para Leishmania sp., quatro soros da área não endêmica foram positivos. Os cães foram localizados

  20. Hepatozoon canis and Leishmania spp. coinfection in dogs diagnosed with visceral leishmaniasis

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    Fernanda Nazaré Morgado

    Full Text Available Abstract This study describes the occurrence of dogs naturally co-infected with Hepatozoon canis and two Leishmania species: L. infantum or L. braziliensis. Four dogs serologically diagnosed with Visceral Leishmaniasis were euthanized. Liver and spleen samples were collected for histopathological analysis and DNA isolation. H. canis meronts were observed in tissues from all four dogs. H. canis infection was confirmed by PCR followed by sequencing of a fragment of 18S rRNA gene. Leishmania detection and typing was confirmed by ITS1' PCR-RFLP and parasite burden was calculated using ssrRNA quantitative qPCR. A DPP - Dual Path platform test was performed. One out (Dog #2 of four animals was asymptomatic. Dogs #1 and #4 were infected by L. infantum and were DPP test positive. Dogs #2 and #3 were infected by L. braziliensis and were DPP test negative. Furthermore, visceral dissemination was observed in Dogs #2 and #3, since L. braziliensis was detected in liver and spleen samples. The visceral dissemination of L. braziliensis associated with systemic signs suggested that this co-infection could influence the parasite burden and disease progression.

  1. Molecular detection of Anaplasma bovis, Ehrlichia canis and Hepatozoon felis in cats from Luanda, Angola.

    Science.gov (United States)

    Oliveira, Ana Cristina; Luz, Maria Francisca; Granada, Sara; Vilhena, Hugo; Nachum-Biala, Yaarit; Lopes, Ana Patrícia; Cardoso, Luís; Baneth, Gad

    2018-03-20

    Molecular identification of tick-borne pathogen infection in cats from Africa is scarce. The presence of bacterial (Anaplasma and Ehrlichia) and protozoal (Babesia and Hepatozoon) agents was investigated in blood samples from 102 domestic cats from Luanda, Angola, by polymerase chain reaction and DNA sequencing. Three cats (2.9%) were found infected with Ehrlichia canis, three (2.9%) with Hepatozoon felis and one (1.0%) with Anaplasma bovis. The prevalence of infections with one single agent was 4.9%, and that of infection with two agents (i.e. E. canis and H. felis) was 1.0%. In total, six cats (5.9%) were found infected with at least one of the detected tick-borne agents. This is the first report of A. bovis, E. canis and H. felis in cats from Angola. To the best of our knowledge, A. bovis is also being reported for the first time in domestic cats outside of Japan. Cats are at a low to moderate risk of being infected with tick-borne agents in Luanda.

  2. Hepatozoon canis and Leishmania spp. coinfection in dogs diagnosed with visceral leishmaniasis.

    Science.gov (United States)

    Morgado, Fernanda Nazaré; Cavalcanti, Amanda Dos Santos; Miranda, Luisa Helena de; O'Dwyer, Lúcia Helena; Silva, Maria Regina Lucas da; Menezes, Rodrigo Caldas; Andrade da Silva, Aurea Virgínia; Boité, Mariana Côrtes; Cupolillo, Elisa; Porrozzi, Renato

    2016-01-01

    This study describes the occurrence of dogs naturally co-infected with Hepatozoon canis and two Leishmania species: L. infantum or L. braziliensis. Four dogs serologically diagnosed with Visceral Leishmaniasis were euthanized. Liver and spleen samples were collected for histopathological analysis and DNA isolation. H. canis meronts were observed in tissues from all four dogs. H. canis infection was confirmed by PCR followed by sequencing of a fragment of 18S rRNA gene. Leishmania detection and typing was confirmed by ITS1' PCR-RFLP and parasite burden was calculated using ssrRNA quantitative qPCR. A DPP - Dual Path platform test was performed. One out (Dog #2) of four animals was asymptomatic. Dogs #1 and #4 were infected by L. infantum and were DPP test positive. Dogs #2 and #3 were infected by L. braziliensis and were DPP test negative. Furthermore, visceral dissemination was observed in Dogs #2 and #3, since L. braziliensis was detected in liver and spleen samples. The visceral dissemination of L. braziliensis associated with systemic signs suggested that this co-infection could influence the parasite burden and disease progression.

  3. Identification of toxocara canis antigens by Western blot in experimentally infected rabbits

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    MORALES Olga Lucía

    2002-01-01

    Full Text Available Toxocariasis is a frequent helminthiasis that can cause visceral and ocular damage in humans specially in children. The identification of specific antigens of Toxocara canis is important in order to develop better diagnostic techniques. Ten rabbits were infected orally with a dose of 5000 Toxocara canis embryonated eggs. Rabbits were bled periodically and an ELISA assay was performed to determine levels of specific Toxocara IgG antibodies. ELISA detected antibodies at day 15 after infection. Western blot (WB assay was performed using excretory/secretory antigens (E/S of T. canis second stage larvae. Different antigen concentrations were evaluated: 150, 200, 250 and 300 µg/mL. The concentration of 250 µg/mL was retained for analysis. Rabbit sera were diluted 1:100. Secondary antibody was used at a dilution of 1:1000. Results of WB indicated that in the first month after infection specific antibodies against the 200 KDa, 116 KDa, 92 KDa and 35 KDa antigens were detected; antibodies against the 92 KDa, 80 KDa, 66 KDa, 45 KDa, 31 KDa and 28 KDa antigens appeared later. All positive sera in the ELISA test were also positive in WB. Two antigen bands, 92 KDa and 35 KDa, were identified since the beginning and throughout the course of infection. These antigens merit further evaluation as candidates for use in diagnosis.

  4. Epidemiological Survey of Brucella canis Infection in Different Breeds of Dogs in Fars Province, Iran

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    Mohammad Amin Behzadi and Asghar Mogheiseh1*

    2012-05-01

    Full Text Available This study was conducted to determine the prevalence of Brucella canis antibodies in different breeds, sex and ages of dogs in southern of Iran. A total of 113 whole blood samples were taken from different breeds based on exotic or native sources. The samples were examined with immunochromatography assay for detection of B. canis antibodies. Twelve dogs were serologically positive (10.62%. There was significant differences in ratio of infected dogs between breeds (exotic or native, ages (less, equal or more than 2 years old and the history of vaccination (against rabies, leptospirosis, parvovirus, adenovirus type 2, canine distemper, parainfluenza (P<0.001. However, the results were not significant statistically, among both sex (P=0.058 and the history of clinical signs (P=0.456 in seropositive dogs. Based on this study and the other investigation in companion dogs from southwest of Iran, it seems that the mixed and spray (native breeds are not infected with B. canis, yet. Conversely, the exotic breeds would be the source of bacterium in Iran. Therefore, preventive and control measures are strongly recommended.

  5. Determination of anthelmintic efficacy against Toxocara canis in dogs by use of capsule endoscopy.

    Science.gov (United States)

    Lee, Alice C Y; Epe, Christian; Bowman, Dwight D

    2015-09-15

    Industry guidelines for anthelmintic testing call for postmortem inspection of animals to verify treatment efficacy. A previous study showed that capsule endoscopy (CE) can be performed on dogs in vivo to quantify hookworms in the small intestine. Adoption of a minimally invasive procedure such as this could reduce the need for necropsy in efficacy trials. The present study employed CE to enumerate Toxocara canis in dogs, with two main goals: to determine if multiple capsule examinations improves the accuracy of worm counts compared to a single examination, and to establish if the efficacy of an anthelmintic compound is the same whether calculated using CE or necropsy data. To avoid needless animal sacrifice, the study was carried out on beagle dogs already in a product development trial with a planned terminal endpoint. Dogs were infected by oral inoculation with T. canis eggs. Untreated control dogs (n=8) were evaluated by CE three times while dogs treated with test compounds (3 groups of 4) were examined only once. Utilizing either the average count or just the last complete capsule examination, a robust correlation was found between CE and postmortem numbers (r=0.94, p<0.001). Calculated anthelmintic efficacy was essentially identical for the two enumeration methods, ranging from 94% to 100% for the three research compounds. CE may therefore be a viable alternative to necropsy for T. canis parasiticide trials. Copyright © 2015 Elsevier B.V. All rights reserved.

  6. Comparative Foraging Efficiency of Two Sympatric Jackals, Silver-Backed Jackals (Canis mesomelas and Golden Jackals (Canis aureus, in the Ngorongoro Crater, Tanzania

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    S. E. Temu

    2016-01-01

    Full Text Available The foraging efficiency of two sympatric species of jackals, silver-backed jackals (Canis mesomelas and golden jackals (Canis aureus, was studied in the Ngorongoro crater from July 2014 through May 2015. The focal animal observation method was used and individuals of both species were followed as they foraged from morning to evening. Observations of individuals of both jackal species were made from a vehicle using binoculars and a spotting scope. Three major parameters were used for determination of foraging efficiency: distance travelled while foraging, time spent foraging, and amount of food secured in foraging period. The Mann–Whitney U test showed no significant difference (P>0.05 in distance travelled per unit time of foraging between the two species in the dry and wet seasons, respectively. Golden jackals secured a significantly higher amount of food than the silver-backed jackals in the wet season (Mann–Whitney U test, P<0.05, U=1035.4. Hunting of prey larger than Thomson’s gazelle (Eudorcas thomsonii fawns was not common. Both species mainly fed on smaller prey such as invertebrates and rodents and scavenged opportunistically. Efficient foraging is crucial for both jackal species especially during their breeding season when they are provisioning dependent pups.

  7. Hematologic changes in dogs naturally infected Leptospira spp., Brucella abortus and Brucella canis

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    Jacqueline Ribeiro de Castro

    2014-01-01

    Full Text Available ABSTRACT. Castro J.R., Silva C.B., Souza M.A., Salaberry S.R.S., Guimarães E.C., Mundim A.V. & Lima-Ribeiro A.M.C. [Hematologic changes in dogs naturally infected Leptospira spp., Brucella abortus and Brucella canis.] Altera- ções hematológicas em cães naturalmente infectados por Leptospira spp., Brucella abortus e Brucella canis. Revista Brasileira de Medicina Veterinária, 36(1:49-54, 2014. Laboratório de Doenças Infectocontagiosas, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Av. Ceará s/n, Bloco 2D, Sala 33, Campus Umuarama, Uberlândia, MG 38400-902, Brasil. E-mail: jack_ufu@yahoo.com.br The investigations of leptospirosis and brucellosis canine act as sanitary control in public health and zoonoses because they were established by close contact between dog and human. The aim was to determine the main hematological reagents in asymptomatic dogs against Leptospira spp. Brucella abortus and Brucella canis naturally infected, living in urban areas in the city of Uberlandia, Minas Gerais. We examined 140 blood samples from clinically healthy dogs, males and females and different ages. Leptospirosis was diagnosed by microscopic agglutination test (MAT, with a collection of twelve serovars, whereas, brucellosis was identified through the tests of Agar Gel Immunodiffusion (AGID for B. canis and buffered acidified antigen (TAA confirmed 2-Mercaptoethanol (2-ME for B. abortus. The results were analyzed using descriptive statistics with the calculation of simple percentages, mean and standard deviation. He applied and short sample t test for two independent samples to assess whether there were significant differences (p<0.05 between hematological parameters obtained. Dogs evaluated, 15% (21/140 and 2.85% (4/140 were reactive to Leptospira spp. and B. abortus, respectively. There was no sample reagent against B. canis. It was concluded that although no specific thrombocytopenia may be a significant finding in dogs

  8. Association between canine leishmaniosis and Ehrlichia canis co-infection: a prospective case-control study.

    Science.gov (United States)

    Attipa, Charalampos; Solano-Gallego, Laia; Papasouliotis, Kostas; Soutter, Francesca; Morris, David; Helps, Chris; Carver, Scott; Tasker, Séverine

    2018-03-20

    In the Mediterranean basin, Leishmania infantum is a major cause of disease in dogs, which are frequently co-infected with other vector-borne pathogens (VBP). However, the associations between dogs with clinical leishmaniosis (ClinL) and VBP co-infections have not been studied. We assessed the risk of VBP infections in dogs with ClinL and healthy controls. We conducted a prospective case-control study of dogs with ClinL (positive qPCR and ELISA antibody for L. infantum on peripheral blood) and clinically healthy, ideally breed-, sex- and age-matched, control dogs (negative qPCR and ELISA antibody for L. infantum on peripheral blood) from Paphos, Cyprus. We obtained demographic data and all dogs underwent PCR on EDTA-blood extracted DNA for haemoplasma species, Ehrlichia/Anaplasma spp., Babesia spp., and Hepatozoon spp., with DNA sequencing to identify infecting species. We used logistic regression analysis and structural equation modelling (SEM) to evaluate the risk of VBP infections between ClinL cases and controls. From the 50 enrolled dogs with ClinL, DNA was detected in 24 (48%) for Hepatozoon spp., 14 (28%) for Mycoplasma haemocanis, 6 (12%) for Ehrlichia canis and 2 (4%) for Anaplasma platys. In the 92 enrolled control dogs, DNA was detected in 41 (45%) for Hepatozoon spp., 18 (20%) for M. haemocanis, 1 (1%) for E. canis and 3 (3%) for A. platys. No Babesia spp. or "Candidatus Mycoplasma haematoparvum" DNA was detected in any dog. No statistical differences were found between the ClinL and controls regarding age, sex, breed, lifestyle and use of ectoparasitic prevention. A significant association between ClinL and E. canis infection (OR = 12.4, 95% CI: 1.5-106.0, P = 0.022) was found compared to controls by multivariate logistic regression. This association was confirmed using SEM, which further identified that younger dogs were more likely to be infected with each of Hepatozoon spp. and M. haemocanis, and dogs with Hepatozoon spp. were more likely to

  9. Analysis and Comparison of Naturalistic Themes in Iranian and Britain Modern Children's Poems

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    Shayesteh Ebrahimi

    2016-08-01

    Full Text Available Today, children's literature given the concept of childhood, has gained a special status in the studies of humanities. Children's poetry is one of the branches of this type of literature. Naturalistic themes have the highest frequency among the themes of children poems in two countries. The population of this research consists of collections that have been published from 1921 to 2011. Children's literature was born in England in the eighteenth century and before that the first didactic books for children had come into existence in England. In addition, due to industrial growth, the emergence of the new middle class and expansion of formal education the UK was pioneering among Europe and the world countries. Therefore, to find the roots of the formation of children's literature should be referred to the UK. Therefore, in this paper Britain children’s poem has been selected to be compared with Iranian children’s poem so that by revealing the similarities and differences one can deal with the pathology of poems for children in Iran and to detect shortcomings and strengths and present some guidelines that be helpful for children and young poets as well as critics and researchers in this field. Keywords: Naturalistic themes, children literature, Iranian children's poems, Britain children's poems, comparative literature

  10. Ask an anatomist: Identifying global trends, topics and themes of academic anatomists using twitter.

    Science.gov (United States)

    Marsland, Madeleine J; Lazarus, Michelle D

    2018-05-06

    Social media (SoMe) is increasingly used in higher education (HE) to access knowledge and enable global communication. The SoMe platform Twitter ® is particularly beneficial in these contexts because it is readily accessible, easily searchable (via hashtags) and global. Given these advantages, the twitter platform @AskAnatomist was created to foster a global weekly tweet chat, where students and academics can ask and address anatomy-related questions. The aim of this study was to identify themes arising in the early stages of the @AskAnatomy Twitter community to gain insights into current needs/key areas for academic anatomists, students, and other followers. A qualitative analysis of tweets including the hashtag #AnatQ, (the associated @AskAnatomist hashtag), was undertaken to achieve this aim. Thematic analysis revealed three core themes arising in the formative stages of the @AskAnatomist Twitter site: (1) anatomical education modalities, (2) specific anatomy content, and (3) research motivations. These themes reveal controversies within the field of anatomical sciences, areas for potential education resource improvement and research, as well as the humor of anatomists. Though the original intent of the @AskAnatomist site was to engage the general public in anatomy content and knowledge, tweet analysis suggests that academic anatomists were the primary active "tweeters". Interestingly, this analysis reveals that the @AskAnatomist site progressed into a web-based community of practice (CoP), suggesting an additional benefit of SoMe communities in the field of anatomy. Anat Sci Educ 11: 270-281. © 2017 American Association of Anatomists. © 2017 American Association of Anatomists.

  11. THE FIVE-COLOR THEME IN DONGBA SCRIPTURES

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    Xu Duoduo 许多多

    2018-05-01

    Full Text Available I compared the two translated versions of The Advent of Dragons collected during fieldwork with a Ruke Dongba priest and found many inconsistencies in the same scripture and even within single verses. These inconsistencies may derive from oral composition mechanisms, for example, the aim to adapt the content to metric patterns. These complexities are mainly attested in verses related to the five-color theme, in which the five colors correspond to the mythical creatures and landscape in the five spatial directions. In the formulaic tradition of Dongba Culture, this color-related theme is delivered as a whole message produced by mentioning several keywords. However, the various details involving the keywords do not affect the meaning of the message. Consequently, the flexibilities of the content, highlighted as inconsistencies in the word-by-word translation, leave space for variants in the development of the oral culture and become formularized in various branches of Dongbaism.

  12. Smashing WordPress Themes Making WordPress Beautiful

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    Hedengren, Thord Daniel

    2011-01-01

    The ultimate guide to WordPress Themes - one of the hottest topics on the web today WordPress is so much more than a blogging platform, and Smashing WordPress Themes teaches readers how to make it look any way they like - from a corporate site, to a photography gallery and moreWordPress is one of the hottest tools on the web today and is used by sites including The New York Times, Rolling Stone, flickr, CNN, NASA and of course Smashing MagazineBeautiful full colour throughout - web designers expect nothing lessSmashing Magazine will fully support this book by by promoting it through their webs

  13. From themes to hypotheses: following up with quantitative methods.

    Science.gov (United States)

    Morgan, David L

    2015-06-01

    One important category of mixed-methods research designs consists of quantitative studies that follow up on qualitative research. In this case, the themes that serve as the results from the qualitative methods generate hypotheses for testing through the quantitative methods. That process requires operationalization to translate the concepts from the qualitative themes into quantitative variables. This article illustrates these procedures with examples that range from simple operationalization to the evaluation of complex models. It concludes with an argument for not only following up qualitative work with quantitative studies but also the reverse, and doing so by going beyond integrating methods within single projects to include broader mutual attention from qualitative and quantitative researchers who work in the same field. © The Author(s) 2015.

  14. The moral theme in Zulu literature: a progression

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    M. Marggraff

    1998-04-01

    Full Text Available A moral theme in literature is not only unique to Zulu literature. Despite the relative youth of the modern branch of Zulu literature, any observer can make the interesting and important discovery that the moral theme is predominantly conveyed by the following three literary types: the folktale, the moral story, the detective story. The folktale, belonging to traditional literature, is a very well-developed form, that formed the principal means of teaching both children and adults about good and evil. The birth of modern Zulu literature in 1930 brought with it the emergence of the moral story, a literary type in which good triumphs over evil and in which justice prevails. Further development and changes have led to the appearance of the detective story in which crimes are solved and bad people are punished. This progression has developed due to ever-changing circumstances and a need for relevance.

  15. Terror Park: A future theme park in 2100

    OpenAIRE

    Wright, Daniel

    2017-01-01

    In the future, tourism and entertainment could be displayed as spectacles of horror, where consumers are offered and opportunity to revisit the tragedies of the past. Current displays of death where the past is exhibited and consumed as fun, scary and as entertainment productions are widespread. The movie industry provides horror to all ages, children can be exposed to the goulash past in various forms, such as the popular book series ‘Horrible Histories’. Theme parks, rides and roller-coaste...

  16. Ecological Economics: Themes, Approaches, and Differences with Environmental Economics

    OpenAIRE

    Jeroen C.J.M. van den Bergh

    2000-01-01

    This provides a short overview of the main themes of ecological economics (EE). It isargued that EE provides a platform that fosters multidisciplinary environmental research bybringing together the core contributing disciplines economics and ecology. In addition, EE isregarded as a pluralistic approach to environmental research that can be set opposite to, and hasindeed developed as a response to, traditional environmental and resource economics. Acomparison of the two fields is presented to ...

  17. Museums as Theme Parks - A Possible Marketing Approach?

    OpenAIRE

    Alexandra ZBUCHEA

    2015-01-01

    Museums compete increasingly more with very diverse entertainment providers, such as theme parks, despite the fact that their offer is mainly cultural. Museums have had to be more active and they have had to diversify their offer, in order to be more popular, therefore to better achieve their complex cultural missions. They should be more “market oriented” and aim to develop their programs according with their visitors’ needs and desires, as well as with the evolutions in the contemporary soc...

  18. Themes, scenes, and taste in the history of Japanese garden art

    OpenAIRE

    Kuitert, W.

    1988-01-01

    The present study deals - in its three parts - with three fragments of the garden history of Japan. It reveals how the meaning a garden had to the people of its time was significantly different in all of these periods.

    Part one, titled "Themes", deals with the later Heian period, from the tenth until the late twelfth century. The foundations of a native, Japanese tradition of garden art were laid. The first chapters introduce the palace gardens of the courtly aristocracy in t...

  19. Hematological disorders detected in dogs infected by Hepatozoon canis in a municipality in Mato Grosso do Sul State, Brazil

    Directory of Open Access Journals (Sweden)

    L.M. Paiz

    Full Text Available ABSTRACT A retrospective review of hematological reports of nine dogs detected with Hepatozoon canis infection by microscopic examination of blood smears in a laboratory in the municipality of Dourados, Mato Grosso do Sul, Brazil was conducted. This study aimed to evaluate the hematological profile of these infected dogs, in addition to the occurrence of coinfections with other agents that infect blood cells, since studies concerning canine hepatozoonosis in Brazil are scarce and there are some divergences regarding H. canis infection that still require a resolution. The nine cases of H. canis infection were identified among all dogs examined at the studied laboratory in 2009 and 2010, with an occurrence of 7/1,192 (0.59%; 95% CI 0.15 - 1.02% positive dogs in the first year and 2/1,313 (0.15%; 95% CI 0.02 - 0.55% cases in 2010. The analysis of the hematological reports showed an occurrence of coinfection between H. canis and other agents in two (2/9; 22.22%; 95% CI 2.81 - 60.00% dogs, one with E. canis and another with Babesia spp. (1/9; 11.11%; 95% CI 0.28 - 48.24%. Only the blood test of one dog had no alterations, based on reference values. Anemia was the most frequent hematological alteration (6/9; 66.67%; 95% CI 29.93 - 92.51%. Although the occurrence of H. canis infection was low, significative hematological alterations were observed in most infected dogs. Coinfection with Babesia spp. and E. canis was detected in two dogs and the hematological alterations cannot be attributed exclusively to H. canis in these animals. Longitudinal studies would be of fundamental importance to determine the causality of these alterations. These results highlight the importance of differential diagnosis in dogs when there is clinical suspicion of infection by hemoparasites, since the hematological changes in dogs infected by H. canis are quite variable.

  20. Retrospective study of clinical and hematological aspects associated with dogs naturally infected by Hepatozoon canis in Ludhiana, Punjab, India

    Science.gov (United States)

    Chhabra, Sushma; Uppal, Sanjeev Kumar; Singla, Lachhman Das

    2013-01-01

    Objective To evaluate clinical and hematological aspects of dogs naturally infected with Hepatozoon canis (H. canis) presented at the Small Animal Clinics of Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana. Methods Blood films of 34 naturally infected dogs were examined for haematological alterations and parasitaemia. Signalment and clinical signs were recorded from the animals. Clinical histories were filled out during the consultation. Results Of the 34 positive dogs by Giemsa stained peripheral blood films, 88.23% presented parasitaemia by H. canis only, while 11.77% had the combination of H. canis, Babesia sp. and Ehrlichia sp. Young male dogs less than one-year-old, of non-descript breed, were the most commonly affected. And 26.47% were presented with anorexia/inappetence as the only clinical symptom. Other clinical symptoms were mild to moderate fever, pale mucosae and lethargy; a few were also showing the signs of vomiting and diarrhoea. Haematological alterations showed mainly normochromic-normocytic anaemia, leukocytosis and neutrophilia. Conclusions The findings of this study substantiate that H. canis caused clinical and haematological alterations of the varied intensity in dogs, even with low parasitaemia, should be taken into consideration. PMID:23730562

  1. Retrospective study of clinical and hematological aspects associated with dogs naturally infected by Hepatozoon canis in Ludhiana, Punjab, India.

    Science.gov (United States)

    Chhabra, Sushma; Uppal, Sanjeev Kumar; Singla, Lachhman Das

    2013-06-01

    To evaluate clinical and hematological aspects of dogs naturally infected with Hepatozoon canis (H. canis) presented at the Small Animal Clinics of Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana. Blood films of 34 naturally infected dogs were examined for haematological alterations and parasitaemia. Signalment and clinical signs were recorded from the animals. Clinical histories were filled out during the consultation. Of the 34 positive dogs by Giemsa stained peripheral blood films, 88.23% presented parasitaemia by H. canis only, while 11.77% had the combination of H. canis, Babesia sp. and Ehrlichia sp. Young male dogs less than one-year-old, of non-descript breed, were the most commonly affected. And 26.47% were presented with anorexia/inappetence as the only clinical symptom. Other clinical symptoms were mild to moderate fever, pale mucosae and lethargy; a few were also showing the signs of vomiting and diarrhoea. Haematological alterations showed mainly normochromic-normocytic anaemia, leukocytosis and neutrophilia. The findings of this study substantiate that H. canis caused clinical and haematological alterations of the varied intensity in dogs, even with low parasitaemia, should be taken into consideration.

  2. Transmission trials, ITS2-PCR and RAPD-PCR show identity of Toxocara canis isolates from red fox and dog.

    Science.gov (United States)

    Epe, C; Meuwissen, M; Stoye, M; Schnieder, T

    1999-07-01

    Toxocara canis isolates from dog and from red fox were compared in transmission trials and with molecular analysis using RAPD-PCR technique and comparison of the ITS2 sequence. After oral infection of bitches with 20,000 embryonated T. canis eggs of vulpine and canine origin, the vertical transmission to pup's was examined. All animals of both groups developed typical clinical symptoms of toxocarosis. The haematological, serological, parasitological and post mortem results showed no differences between both isolates except for the infectivity of T. canis stages in mice where the fox isolate showed a significant higher infectivity than the dog isolate. The RAPD-PCR showed a similarity coefficient of 0.95, similar to the range of intraspecific variation in Toxocara cati and Toxascaris leonina specimens as outgroups. The ITS2 comparison showed a 100% identity between both isolates with no intraspecific variations. Therefore, the study shows that the fox and the dog isolate of T. canis were identical in infectivity, transmission and molecular structure; a host adaptation could not be found and the fox has to be seen as a reservoir for T. canis infections in dogs. Considering the increasing number of foxes in urban areas the importance of helminth control in dogs is stressed.

  3. Cardiac markers: profile in rats experimentally infected with Toxocara canis Marcadores cardíacos: perfil em ratos infectados experimentalmente com Toxocara canis

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    Cecília Braga Laposy

    2012-09-01

    Full Text Available The aim of this study was to evaluate the profile of the enzymes creatine kinase (CK, creatine kinase MB (CK-MB and lactate dehydrogenase (LDH in Wistar rats infected with 250 (GI, n = 24 or 1000 (GII, n = 24 Toxocara canis eggs. Animals were evaluated on days 7, 15, 30, 60, 120 and 180 post-infection (DPI. Only the GI rats showed an increase in CK and CK-MB, at 15 and 30 DPI, respectively. Anti-Toxocara spp. antibodies were detected by ELISA in infected animals. Despite of the presence of eosinophilic infiltrate in the heart of three infected animals, none larva was recovered from the organ neither by acid digestion nor by Baermann procedure. Eosinophilia was observed in both groups but there was no significant difference in the eosinophil counts between GI and GII (p = 0.2239. It is possible to consider that cardiac lesion is an eventual finding in murine model for toxocariasis.O objetivo do presente estudo foi avaliar o perfil das enzimas creatinoquinase (CK, creatinoquinase-MB (CK-MB e lactato desidrogenase (LDH em ratos Wistar infectados com 250 (GI, n = 24 ou 1000 (GII, n = 24 ovos de Toxocara canis. Os animais foram avaliados nos dias 7, 15, 30, 60, 120 e 180 pós-infecção (DPI. Observou-se que apenas os animais do GI apresentaram aumento da atividade de CK e CK-MB aos 15 e 30 DPI, respectivamente. Anticorpos anti-T. canis foram detectados por ELISA nos animais infectados. Apesar da presença de infiltrado eosinofílico em três animais infectados, nenhuma larva foi recuperada do coração pela digestão ácida ou pela técnica de Baermann. Eosinofilia foi observada em todos os momentos em GI e GII, sem diferença significativa entre os grupos (p = 0,2239. Pode-se considerar que as lesões cardíacas foram um achado eventual no modelo murino para toxocaríase.

  4. Soroepidemiologia da brucelose canina causada por Brucella canis e Brucella abortus na cidade de Alfenas, MG Seroepidemiology of canine brucellosis caused by Brucella canis and Brucella abortus in Alfenas, MG, Brazil

    Directory of Open Access Journals (Sweden)

    A.C. Almeida

    2004-04-01

    Full Text Available The prevalence of canine brucellosis was evaluated in the city of Alfenas, MG through the technique of agarose gel imunodifusion for Brucella canis and slow serum agglutination test with 2-mercaptoetanol for Brucella abortus. The prevalence was of 14.2% and 2.8%, respectively, for B. canis and B. abortus. The positives, characterized by animals above one year of age (77.8%, and mongrel dogs (56.2%, showed a prevalence of 50 and 48% for males and females, respectively. The canine brucellosis was prevalent in the city principally in dogs of outskirts.

  5. PROTECTIVE EFFECT OF THE PROBIOTIC Saccharomyces boulardii IN Toxocara canis INFECTION IS NOT DUE TO DIRECT ACTION ON THE LARVAE

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    Luciana Farias da Costa de Avila

    2013-09-01

    Full Text Available SUMMARY In a previous study our group found that the probiotic Saccharomyces boulardii was capable of reducing the intensity of infection in mice with toxocariasis. In order to assess whether the mechanism involved would be a direct action of the probiotic on Toxocara canis larvae, this study was designed. Both probiotics were singly cultivated in plates containing RPMI 1640 medium and T. canis larvae. S. boulardii and B. cereus var. toyoi cultures presented 97.6% and 95.7% of larvae with positive motility, respectively, and absence of color by the dye trypan blue, not representing significant difference to the control group (p > 0.05. We conclude that none of the probiotics showed in vitro effects on T. canis larvae and that the interaction with the intestinal mucosa is necessary for the development of the protective effect of S. boulardii.

  6. Prevalence and molecular characterization of Hepatozoon canis in dogs from urban and rural areas in Southeast Brazil.

    Science.gov (United States)

    de Miranda, R L; O'Dwyer, L H; de Castro, J R; Metzger, B; Rubini, A S; Mundim, A V; Eyal, O; Talmi-Frank, D; Cury, M C; Baneth, G

    2014-10-01

    The objective of this survey was to investigate the prevalence of Hepatozoon infection in dogs in the rural and urban areas of Uberlândia, Brazil by PCR and molecular characterization. DNA was obtained from blood samples collected from 346 local dogs from both genders and various ages. Seventeen PCR products from positive blood samples of urban dogs and 13 from the rural dogs were sequenced. Partial sequences of the 18S rRNA gene indicated that all 30 dogs were infected with Hepatozoon canis similar in sequence to H. canis from southern Europe. Four local dog sequences were submitted to GenBank (accessions JN835188; KF692038; KF692039; KF692040). This study indicates that H. canis is the cause of canine hepatozoonosis in Uberlândia and that infection is similarly widespread in rural and urban dogs. Copyright © 2014. Published by Elsevier Ltd.

  7. Protective effect of the probiotic Saccharomyces boulardii in Toxocara canis infection is not due to direct action on the larvae.

    Science.gov (United States)

    Avila, Luciana Farias da Costa de; Telmo, Paula de Lima; Martins, Lourdes Helena Rodrigues; Glaeser, Thaís Aimeé; Conceição, Fabricio Rochedo; Leite, Fábio Pereira Leivas; Scaini, Carlos James

    2013-01-01

    In a previous study our group found that the probiotic Saccharomyces boulardii was capable of reducing the intensity of infection in mice with toxocariasis. In order to assess whether the mechanism involved would be a direct action of the probiotic on Toxocara canis larvae, this study was designed. Both probiotics were singly cultivated in plates containing RPMI 1640 medium and T. canis larvae. S. boulardii and B. cereus var. toyoi cultures presented 97.6% and 95.7% of larvae with positive motility, respectively, and absence of color by the dye trypan blue, not representing significant difference to the control group (p > 0.05). We conclude that none of the probiotics showed in vitro effects on T. canis larvae and that the interaction with the intestinal mucosa is necessary for the development of the protective effect of S. boulardii.

  8. The theme revenge in the cinema: a literary philosophical approach

    Directory of Open Access Journals (Sweden)

    Fábio José de Queiroz

    2016-04-01

    Full Text Available In this article, the focus is revenge, taking as a starting point two cinematographic works –Once upon a time in this article is revenge, taking as a starting point two cinematographic works­ once upon a time in West, by Sergio Leone, and also colors: White by Krzysztof Kieslowsk. Without the direct influence of a purely artistic appreciation of both movies, this is about a study of literary­ philosophical lineage by relying on classical seeks to provide an theoretical analyze of the theme, avoiding falling into an empiricist interpretation, trivial and shallow of the object.

  9. The beauty of simple models: Themes in recognition heuristic research

    Directory of Open Access Journals (Sweden)

    Daniel G. Goldstein

    2011-07-01

    Full Text Available The advantage of models that do not use flexible parameters is that one can precisely show to what degree they predict behavior, and in what situations. In three issues of this journal, the recognition heuristic has been examined carefully from many points of view. We comment here on four themes, the use of optimization models to understand the rationality of heuristics, the generalization of the recognition input beyond a binary judgment, new conditions for less-is-more effects, and the importance of specifying boundary conditions for cognitive heuristics.

  10. Converging cellular themes for the hereditary spastic paraplegias.

    Science.gov (United States)

    Blackstone, Craig

    2018-05-10

    Hereditary spastic paraplegias (HSPs) are neurologic disorders characterized by prominent lower-extremity spasticity, resulting from a length-dependent axonopathy of corticospinal upper motor neurons. They are among the most genetically-diverse neurologic disorders, with >80 distinct genetic loci and over 60 identified genes. Studies investigating the molecular pathogenesis underlying HSPs have emphasized the importance of converging cellular pathogenic themes in the most common forms of HSP, providing compelling targets for therapy. Most notably, these include organelle shaping and biogenesis as well as membrane and cargo trafficking. Published by Elsevier Ltd.

  11. Assessment of the quality seen in a restaurant typical theme

    Directory of Open Access Journals (Sweden)

    Francisco Alves Pinheiro

    2009-03-01

    Full Text Available To ensure the satisfaction of external customers it is necessary to know their needs. In this perspective, these work objectives assess the perception of quality by the customer outside of a restaurant located in the a restaurant typical theme located in the square of food “Bodódromo” the city of Petrolina/Pe. For both this was a case study, using the model servqual, Parasuraman et al (1985, for removal of information. The results indicated a need for improvement in the services provided by the restaurant.

  12. The first report of Hepatozoon canis identified in Vulpes vulpes and ticks from Italy.

    Science.gov (United States)

    Gabrielli, Simona; Kumlien, Susanna; Calderini, Pietro; Brozzi, Alberto; Iori, Albertina; Cancrini, Gabriella

    2010-11-01

    This is the first report on the presence of Hepatozoon canis in Vulpes vulpes in Italy. During the years 2005 and 2006, a total of 119 foxes were collected and their spleen tissues were screened by microscopy, polymerase chain reaction, and sequencing. In the same area, 290 ticks were picked off from dogs or collected from the environment. Microscopy detected inclusion bodies regarded as belonging to the genus Hepatozoon in four samples, whereas molecular diagnostics evidenced 16 foxes (13.4%) and 6 ticks (2.1%) positive to H. canis. The H. canis isolates we found in foxes, compared with the strains we previously detected in dogs from the same area and with the strains found in foxes from other European countries, show a certain genetic heterogeneity. In fact, seven isolates cluster with the Italian dog strain and nine isolates cluster with the fox strain found in Spain and Slovakia; moreover, the dog's strain is closely related to one tick's isolate, and the strain found in three Rhipicephalus sanguineus and in one Ixodes ricinus collected from the environment cluster with the aforementioned Spanish and Slovak fox strains. Our findings confirm the importance of R. sanguineus as final host and suggest that I. ricinus might also be implicated in parasite transmission, explaining in that way the occurrence of hepatozoonosis in areas considered R. sanguineus-free. The peridomestic habits of V. vulpes and the increasing global temperature are expected to amplify the impact of this vector-borne disease and to enforce the transmission of Hepatozoon to domestic animals.

  13. Comparison of three methods for recovery of Brucella canis DNA from canine blood samples.

    Science.gov (United States)

    Batinga, Maria Cryskely A; Dos Santos, Jaíne C; Lima, Julia T R; Bigotto, Maria Fernanda D; Muner, Kerstin; Faita, Thalita; Soares, Rodrigo M; da Silva, David A V; Oliveira, Trícia M F S; Ferreira, Helena L; Diniz, Jaqueline A; Keid, Lara B

    2017-12-01

    Brucella canis, a gram-negative, facultative intracellular and zoonotic bacterium causes canine brucellosis. Direct methods are the most appropriate for the detection of canine brucellosis and bacterial isolation from blood samples has been employed as gold-standard method. However, due to the delay in obtaining results and the biological risk of the bacterial culturing, the polymerase chain reaction (PCR) has been successfully used as an alternative method for the diagnosis of the infection. Sample preparation is a key step for successful PCR and protocols that provide high DNA yield and purity are recommended to ensure high diagnostic sensitivity. The objective of this study was to evaluate the performance of PCR for the diagnosis of B. canis infection in 36 dogs by testing DNA of whole blood obtained through different extraction and purification protocols. Methods 1 and 2 were based on a commercial kit, using protocols recommended for DNA purification of whole blood and tissue samples, respectively. Method 3 was an in-house method based on enzymatic lysis and purification using organic solvents. The results of the PCR on samples obtained through three different DNA extraction protocols were compared to the blood culture. Of the 36 dogs, 13 (36.1%) were positive by blood culturing, while nine (25.0%), 14 (38.8%), and 15 (41.6%) were positive by PCR after DNA extraction using methods 1, 2 and 3, respectively. PCR performed on DNA purified by Method 2 was as efficient as blood culturing and PCR performed on DNA purified with in-house method, but had the advantage of being less laborious and, therefore, a suitable alternative for the direct B. canis detection in dogs. Copyright © 2017. Published by Elsevier B.V.

  14. A protected area influences genotype-specific survival and the structure of a Canis hybrid zone.

    Science.gov (United States)

    Benson, John F; Patterson, Brent R; Mahoney, Peter J

    2014-02-01

    It is widely recognized that protected areas can strongly influence ecological systems and that hybridization is an important conservation issue. However, previous studies have not explicitly considered the influence of protected areas on hybridization dynamics. Eastern wolves are a species of special concern and their distribution is largely restricted to a protected population in Algonquin Provincial Park (APP), Ontario, Canada, where they are the numerically dominant canid. We studied intrinsic and extrinsic factors influencing survival and cause-specific mortality of hybrid and parental canids in the three-species hybrid zone between eastern wolves, eastern coyotes, and gray wolves in and adjacent to APP. Mortality risk for eastern wolves in areas adjacent to APP was significantly higher than for other sympatric Canis types outside of APP, and for eastern wolves and other canids within APP. Outside of APP, the annual mortality rate of all canids by harvest (24%) was higher than for other causes of death (4-7%). Furthermore, eastern wolves (hazard ratio = 3.5) and nonresidents (transients and dispersing animals, hazard ratio = 2.7) were more likely to die from harvest relative to other Canis types and residents, respectively. Thus, eastern wolves dispersing from APP were especially vulnerable to harvest mortality. For residents, eastern wolf survival was more negatively influenced by increased road density than for other Canis types, further highlighting the sensitivity of eastern wolves to human disturbance. A cycle of dispersal from APP followed by high rates of mortality and hybridization appears to maintain eastern wolves at low density adjacent to APP, limiting the potential for expansion beyond the protected area. However, high survival and numerical dominance of eastern wolves within APP suggest that protected areas can allow rare hybridizing species to persist even if their demographic performance is compromised and barriers to hybridization are largely

  15. Molecular characterization and transcriptional analysis of the female-enriched chondroitin proteoglycan 2 of Toxocara canis.

    Science.gov (United States)

    Ma, G X; Zhou, R Q; Hu, L; Luo, Y L; Luo, Y F; Zhu, H H

    2018-03-01

    Toxocara canis is an important but neglected zoonotic parasite, and is the causative agent of human toxocariasis. Chondroitin proteoglycans are biological macromolecules, widely distributed in extracellular matrices, with a great diversity of functions in mammals. However, there is limited information regarding chondroitin proteoglycans in nematode parasites. In the present study, a female-enriched chondroitin proteoglycan 2 gene of T. canis (Tc-cpg-2) was cloned and characterized. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to measure the transcription levels of Tc-cpg-2 among tissues of male and female adult worms. A 485-amino-acid (aa) polypeptide was predicted from a continuous 1458-nuleotide open reading frame and designated as TcCPG2, which contains a 21-aa signal peptide. Conserved domain searching indicated three chitin-binding peritrophin-A (CBM_14) domains in the amino acid sequence of TcCPG2. Multiple alignment with the inferred amino acid sequences of Caenorhabditis elegans and Ascaris suum showed that CBM_14 domains were well conserved among these species. Phylogenetic analysis suggested that TcCPG2 was closely related to the sequence of chondroitin proteoglycan 2 of A. suum. Interestingly, a high level of Tc-cpg-2 was detected in female germline tissues, particularly in the oviduct, suggesting potential roles of this gene in reproduction (e.g. oogenesis and embryogenesis) of adult T. canis. The functional roles of Tc-cpg-2 in reproduction and development in this parasite and related parasitic nematodes warrant further functional studies.

  16. Serological survey for diseases in free-ranging coyotes (Canis latrans) in Yellowstone National Park, Wyoming.

    Science.gov (United States)

    Gese, E M; Schultz, R D; Johnson, M R; Williams, E S; Crabtree, R L; Ruff, R L

    1997-01-01

    From October 1989 to June 1993, we captured and sampled 110 coyotes (Canis latrans) for various diseases in Yellowstone National Park, Wyoming (USA). Prevalence of antibodies against canine parvovirus (CPV) was 100% for adults (> 24 months old), 100% for yearlings (12 to 24 months old), and 100% for old pups (4 to 12 months old); 0% of the young pups (Yellowstone National Park, with CPV influencing coyote pup survival during the first 3 months of life; eight of 21 transmitted pups died of CPV infection in 1992. The potential impact of these canine pathogens on wolves (C. lupus) reintroduced to Yellowstone National Park remains to be documented.

  17. Unusual behavior by Bison, Bison bison, toward Elk, Cervus elaphus, and wolves, Canis lupus

    Science.gov (United States)

    Mech, L.D.; McIntyre, R.T.; Smith, D.W.

    2004-01-01

    Incidents are described of Bison (Bison bison) in Yellowstone National Park mauling and possibly killing a young Elk (Cervus elaphus) calf, chasing wolves (Canis lupus) off Elk they had just killed or were killing, and keeping the wolves away for extended periods. During one of the latter cases, the Bison knocked a wolf-wounded Elk down. Bison were also seen approaching wolves that were resting and sleeping, rousting them, following them to new resting places and repeating this behavior. These behaviors might represent some type of generalized hyper-defensiveness that functions as an anti-predator strategy.

  18. Aspectos anatomopatológicos em cães naturalmente infectados por Hepatozoon canis

    OpenAIRE

    Lima, Pâmela A.; Barçante, Joziana M.P.; Boeloni, Jankerle N.; Bezerra Júnior, Pedro S.; Wouters, Flademir; Wouters, Angélica T.; Varaschin, Mary S.; Seixas, Josilene N.

    2017-01-01

    RESUMO: A hepatozoonose canina é causada principalmente pelos protozoários Hepatozoon canis e H. americanum, transmitida por ingestão de carrapatos parasitados. Os sinais clínicos podem ser inespecíficos ou de difícil reconhecimento, pois geralmente ocorre associada a outras doenças. No Brasil, o parasito, e a doença, já foram identificados em vários Estados, no entanto pouco se sabe sobre as alterações clínicas e anátomo-patológicas decorrentes da infecção. O presente trabalho relata cinco c...

  19. Cross-sectional study of object permanence in domestic puppies (Canis familiaris).

    Science.gov (United States)

    Gagnon, S; Doré, F Y

    1994-09-01

    Visual accommodation and object permanence tests were administered to 70 puppies (Canis familiaris), aged 4 weeks to 9 months. The results showed that understanding of visible displacement problems emerged at the 5th weeks and developed rapidly until the 8th week. Although the search behaviors of older puppies were more flexible, no further significant development was observed between 8 weeks and 9 months. The results on invisible displacement tests suggest that understanding of invisible displacement problems appears around the 1st year in dogs' development.

  20. Extinguishing a learned response in a free-ranging gray wolf (Canis lupus)

    Science.gov (United States)

    Mech, L. David

    2017-01-01

    A free-ranging Gray Wolf (Canis lupus), habituated to human presence (the author) on Ellesmere Island, Canada, learned to anticipate experimental feeding by a human, became impatient, persistent, and bold and exhibited stalking behaviour toward the food source. Only after the author offered the wolf about 90 clumps of dry soil over a period of 45 minutes in three bouts, did the wolf give up this behaviour. To my knowledge, this is the first example of extinguishing a learned response in a free-ranging wolf and provides new insight into the learning behaviour of such animals.

  1. Joint manifestations in children infected with Ascaris lumbricoides and Toxocara canis – single centre experience

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    Marta Janicka-Szczepaniak

    2016-06-01

    Full Text Available Joint disorders in children are a frequent cause of parents’ concern and a reason of visiting family doctors and rheumatologists. In search for the correct diagnosis, a wide differential diagnosis should be conducted, including bacterial, parasitic, but also rheumatoid or proliferative process. However, the majority of complaints reported by children are reactive in nature. Diagnosis is based on the clinical symptoms and serology tests results. Ascaris lumbricoides or Toxocara canis infection may manifest itself not only with gastrointestinal, but also musculoskeletal symptoms, depending on the period of the disease. The aim of the paper was to assess the frequency of complaints associated with the locomotor system in children with the presence of serum antibodies against Ascaris lumbricoides and/or Toxocara canis and to analyse their relationship with selected laboratory tests (eosinophilia and the final diagnosis. Material and methods: Medical records of 86 children hospitalised in 2013–2015 at the Department of Paediatric Cardiology and Rheumatology, Medical University of Łódź, were analysed. Children with musculoskeletal symptoms and positive serum antibody titres against Ascaris lumbricoides and/or Toxocara canis were included in the study. Results: Among the infected patients, the most frequently reported complaint from the locomotor system was knee (51% and wrist (19% pain. Ascaris lumbricoides infection was the dominant human parasitosis (66%, while in 15 patients (17% Toxocara canis co-infestation was detected. Rheumatoid process was the most common suspicion (36%, but the final diagnosis of juvenile idiopathic arthritis was determined in only 12 patients (14%. Conclusions: Parasitic infections often coexist with articular symptoms reported by children and should always be excluded in the differential diagnosis. In some cases, a parasitic infection may be one of the factors that initiate the rheumatoid

  2. Genetic blueprint of the zoonotic pathogen Toxocara canis

    DEFF Research Database (Denmark)

    Zhu, Xing-Quan; Korhonen, Pasi K.; Cai, Huimin

    2015-01-01

    Toxocara canis is a zoonotic parasite of major socioeconomic importance worldwide. In humans, this nematode causes disease (toxocariasis) mainly in the under-privileged communities in developed and developing countries. Although relatively well studied from clinical and epidemiological perspectives...... of 13.5% and encodes at least 18,596 protein-coding genes. We study transcription in a larval, as well as adult female and male stages, characterize the parasite's gene-silencing machinery, explore molecules involved in development or host-parasite interactions and predict intervention targets...

  3. Diagnostic PCR tests for Microsporum audouinii, M. canis and Trichophyton infections

    DEFF Research Database (Denmark)

    Brillowska-Dabrowska, Anna; Swierkowska, Aleksandra; Lindhardt Saunte, Ditte Marie

    2010-01-01

    ; 25 routine specimens from patients suspected of having dermatophytosis; 10 hair specimens from guinea pigs experimentally infected with M. canis; and two samples from un-infected control animals. DNA was prepared by a 10-min procedure from pure cultures as previously described. The 302 bp PCR product....... Finally, the Microsporum PCR was positive for 10/10 guinea pig specimens from infected animals but for 0/2 of the control animal samples. The evaluation of the two PCR tests indicated excellent sensitivity and specificity....

  4. Seroepidemiology of Toxocara canis infection among primary schoolchildren in the capital area of the Republic of the Marshall Islands.

    Science.gov (United States)

    Fu, Chung-Jung; Chuang, Ting-Wu; Lin, Huei-Shan; Wu, Chih-Hsiung; Liu, Yung-Ching; Langinlur, Mailynn K; Lu, Min-Yun; Hsiao, Wesley Wei-Wen; Fan, Chia-Kwung

    2014-05-15

    Toxocariasis, which is predominantly caused by Toxocara canis (T. canis) infection, is a common zoonotic parasitosis worldwide; however, the status of toxocariasis endemicity in the Republic of the Marshall Islands (RMI) remains unknown. A seroepidemiological investigation was conducted among 166 primary school children (PSC) aged 7-12 years from the capital area of the RMI. Western blots based the excretory-secretory antigens of larval T. canis (TcES) was employed, and children were considered seropositive if their serum reacted with TcES when diluted at a titer of 1:64. Information regarding demographic characteristics of and environmental risk factors affecting these children was collected using a structured questionnaire. A logistic regression model was applied to conduct a multivariate analysis. The overall seropositive rate of T. canis infection was 86.75% (144/166). In the univariate analysis, PSC who exhibited a history of feeding dogs at home (OR = 5.52, 95% CI = 1.15-26.61, p = 0.02) and whose parents were employed as nonskilled workers (OR = 2.86, 95% CI = 1.08-7.60, p = 0.03) demonstrated a statistically elevated risk of contracting T. canis infections. Cleaning dog huts with gloves might prevent infection, but yielded nonsignificant effects. The multivariate analysis indicated that parental occupation was the critical risk factor in this study because its effect remained significant after adjusting for other variables; by contrast, the effect of dog feeding became nonsignificant because of other potential confounding factors. No associations were observed among gender, age, consuming raw meat or vegetables, drinking unboiled water, cleaning dog huts with gloves, or touching soil. This is the first serological investigation of T. canis infection among PSC in the RMI. The high seroprevalence indicates the commonness of T. canis transmission and possible human risk. The fundamental information that the present study provides

  5. Differential serodiagnostics of Toxocara canis and Toxocara cati - is it possible?

    DEFF Research Database (Denmark)

    Poulsen, C. S.; Skov, Søren; Yoshida, A.

    2015-01-01

    and uncertainties regarding the validity of existing serological assays. In this study, we used sera from a pig model experimentally infected with T. canis and T. cati to evaluate whether a Western blot could discriminate between the two species. No proteins were observed that could be used as a diagnostic tool......One of the most common zoonotic helminth infections is caused by species in the genus Toxocara, particularly Toxocara canis and T. cati (Syn. T. mystax). However, their relative contribution to toxocarosis in humans remains largely unknown because causative larvae are seldom recovered...

  6. Living in imaginary places: on the creation and consumption of themed residential architecture

    OpenAIRE

    Meier, S.O.

    2013-01-01

    This study deals with theming of residential space and architecture. In theoretical terms, theming is defined as the application of a narrative to places and the built environment to make them more appealing than they otherwise would be. In a broader sense it is argued that theming is related to an intensified commodification of places through which, in turn, the number of hyperspaces has been increased. While theming primarily has been applied to restaurants, shopping malls or theme parks, t...

  7. Types of centredness in health care: themes and concepts.

    Science.gov (United States)

    Hughes, Julian C; Bamford, Claire; May, Carl

    2008-12-01

    For a variety of sociological reasons, different types of centredness have become important in health and social care. In trying to characterize one type of centredness, we were led to consider, at a conceptual level, the importance of the notion of centredness in general and the reasons for there being different types of centeredness. We searched the literature for papers on client-, family-, patient-, person- and relationship- centred care. We identified reviews or papers that defined or discussed the notions at a conceptual level. The reviews and papers were analyzed as text transcripts. We identified 10 themes that were common to all the types of centredness. At a conceptual level we could not identify thematic differences between the types of centredness. These findings were subjected to a philosophical critique using ideas derived from Wittgenstein. Different types of centredness are required in different contexts. The differences are justified by their practical utility. The unifying themes of centredness, however, reflect a movement in favour of increasing the social, psychological, cultural and ethical sensitivity of our human encounters.

  8. Physiological, physical and behavioural changes in dogs (Canis familiaris) when kennelled: testing the validity of stress parameters.

    Science.gov (United States)

    Part, C E; Kiddie, J L; Hayes, W A; Mills, D S; Neville, R F; Morton, D B; Collins, L M

    2014-06-22

    Domestic dogs (Canis familiaris) housed in kennelling establishments are considered at risk of suffering poor welfare. Previous research supporting this hypothesis has typically used cortisol:creatinine ratios (C/Cr) to measure acute and chronic stress in kennelled dogs. However, the value of C/Cr as a welfare indicator has been questioned. This study aimed to test the validity of a range of physiological, physical and behavioural welfare indicators and to establish baseline values reflecting good dog welfare. Measurements were taken from 29 privately-owned dogs (14 males, 15 females), ranging in age and breed, in their own home and in a boarding kennel environment, following a within-subjects, counterbalanced design. Pairwise comparisons revealed that C/Cr and vanillylmandelic acid:creatinine ratios (VMA/Cr) were higher in the kennel than home environment (P=0.003; P=0.01, respectively) and were not associated with differences in movement/exercise between environments. Dogs' surface temperature was lower in kennels (P=0.001) and was not associated with ambient temperature. No association with age, or effects of kennel establishment, kennelling experience, sex or source were found. Dogs were generally more active in kennels, but showed considerable individual variability. C/Cr and 5-HIAA:creatinine ratios (5-HIAA/Cr) were negatively correlated with lip licking in kennels. Baseline values for each parameter are presented. The emotional valence of responses was ambiguous and no definitive evidence was found to suggest that dogs were negatively stressed by kennelling. It was concluded that C/Cr and, particularly, VMA/Cr and surface temperature provide robust indicators of psychological arousal in dogs, while spontaneous behaviour might be better used to facilitate interpretation of physiological and physical data on an individual level. Copyright © 2014 Elsevier Inc. All rights reserved.

  9. Survival and infectivity of Sarcoptes scabiei var. canis and var. hominis.

    Science.gov (United States)

    Arlian, L G; Runyan, R A; Achar, S; Estes, S A

    1984-08-01

    Sarcoptes scabiei var. canis served as a suitable model for the study of S. scabiei var. hominis survival. S. scabiei var. canis and var. hominis mites were found to survive off the host for 24 to 36 hours at room conditions (21 degrees C and 40% to 80% relative humidity [RH]), and the canine variety survived 19 days at 10 degrees C and 97% RH. Female mites survived decidedly longer than male mites at comparable conditions. Generally, higher RH values and lower temperatures favored survival, whereas higher temperature and lower RH led to early death. Most canine scabies mites that were held off the host for 36 hours at 75% RH and 22 degrees to 24 degrees C remained infective and penetrated when returned to the host. Live mites of the human variety that were recovered from bed linen slept on by infested patients would also penetrate a host after being held off a host for 96 hours in alternating 12-hour periods of room conditions and refrigeration. Penetration required less than 30 minutes for all life stages of both varieties, and it was accomplished by a mite secretion that dissolved the host tissue. Dislodged mites, particularly those in close proximity to the source, can be a likely source of infestation.

  10. Parasite species of the endangered Iberian wolf (Canis lupus signatus and a sympatric widespread carnivore

    Directory of Open Access Journals (Sweden)

    Ana Figueiredo

    2016-08-01

    Full Text Available Parasites have a profound impact on wildlife population dynamics. However, until some years ago, studies on the occurrence and prevalence of wildlife parasites were neglected comparatively with the studies on humans and domestic animals. In this study, we determined the parasite prevalence of two sympatric wild canids: the endangered Iberian wolf (Canis lupus signatus and the widespread red fox (Vulpes vulpes, in central Portugal. From November 2014 to July 2015, fresh fecal samples from both species were collected monthly in several transects distributed throughout the study area. All samples were submitted to several coprological techniques. In total, 6 helminth parasites (Crenosoma vulpis, Angiostrongylus vasorum, Toxocara canis, Trichuris vulpis, Ancylostomatidae, Toxascaris leonina, and a protozoa (Balantidium coli were identified based on size and morphology. The red fox was infected by seven different parasites while the Iberian wolf was infected by four. All parasites present in wolf were also present in the red fox. C. vulpis had the higher prevalence in red fox, while Ancylostomatidae were the most prevalent parasites in wolf. To our knowledge, this is the first study in this isolated subpopulation of the Iberian wolf. Our results show that both carnivores carry parasites that are of concern as they are pathogenic to humans and other wild and domestic animals. We suggest that surveillance programs must also include monitoring protocols of wildlife; particularly endangered species.

  11. Aspectos anatomopatológicos em cães naturalmente infectados por Hepatozoon canis

    Directory of Open Access Journals (Sweden)

    Pâmela A. Lima

    Full Text Available RESUMO: A hepatozoonose canina é causada principalmente pelos protozoários Hepatozoon canis e H. americanum, transmitida por ingestão de carrapatos parasitados. Os sinais clínicos podem ser inespecíficos ou de difícil reconhecimento, pois geralmente ocorre associada a outras doenças. No Brasil, o parasito, e a doença, já foram identificados em vários Estados, no entanto pouco se sabe sobre as alterações clínicas e anátomo-patológicas decorrentes da infecção. O presente trabalho relata cinco casos de infecções naturais por Hepatozoon canis em cães do Estado de Minas Gerais e descreve pela primeira vez no Brasil os achados de necropsias e histopatológicos relacionados à infecção. Merontes de Hepatozoon sp., submetidos a avaliação morfométrica, foram observados em cortes histológicos de fígado, baço, medula óssea e rim.

  12. Terbinafine hydrochloride treatment of Microsporum canis experimentally-induced ringworm in cats.

    Science.gov (United States)

    Kotnik, T; Kozuh Erzen, N; Kuzner, J; Drobnic-Kosorok, M

    2001-11-08

    Cats represent the most important source of Microsporum canis infection to people. Terbinafine hydrochloride is commonly used in the treatment of microsporosis. Its fungicidal action permits short period of treatment. It was our objective to evaluate the effectiveness of this drug in treatment of microsporosis in cats. We treated nine experimentally M. canis infected cats with terbinafine at a dose of 10-20mg/kg SID (low-dose group, LDG), nine cats with 30-40mg/kg SID (high-dose group, HDG), and nine cats were left untreated (control group, CG). The drug's levels in cats' plasma and hair were measured by a reversed-phase high performance liquid chromatographic method (RP-HPLC) and the cats' cure was followed by Wood's lamp illumination, microscopic exam and fungal culture. We showed no difference between the clinical course in CG and LDG, but HDG were significantly differentiated from both other groups. Terbinafine levels in plasma at 120 days of treatment were not statistically different among LDG (4.13 microg/l) and HDG (5.48 microg/l), but levels in hair of LDG (1.24 microg/l) and HDG (3.62 microg/l) were significantly different. Terbinafine can be used for the treatment of microsporosis in cats in the dose of 30-40mg/kg SID.

  13. Helminths parasites of stray dogs (Canis lupus familiaris from Cuiabá, Midwestern of Brazil

    Directory of Open Access Journals (Sweden)

    Dirceu Guilherme de Souza Ramos

    2015-04-01

    Full Text Available Helminths cause respiratory and gastrointestinal infections in animals, especially in neonates and young animals. Some species of helminth parasites of domestic animals have zoonotic potential, becoming a public health problem, especially when combined with lack of information about the population of these zoonosis and lack of control over of their hosts. This study aimed to identify and quantify the species of helminths from dogs that are not domiciled in the region of Cuiabá, in the Midwest region of Brazil. A total of 100 animals, from the Center for Zoonosis Control of Cuiabá were euthanized and necropsied for helminth searching. Overall 8,217 helminths were found in 85 animals identified in six species: Ancylostoma caninum, Ancylostoma. braziliense, Trichuris vulpis, Toxocara canis, Dirofilaria immitis and Dipylidium caninum. It was evidenced the wide distribution of helminths pathogenic to domestic dogs and especially with zoonotic potential as A. caninum, T. canis, D. caninum and D. immitis. The presence of D. immitis is an important finding, since it is a potentially zoonotic agent, however, this finding is considered sporadic.

  14. Using diets of Canis breeding pairs to assess resource partitioning between sympatric red wolves and coyotes

    Science.gov (United States)

    Hinton, Joseph W.; Ashley, Annaliese K.; Dellinger, Justin A.; Gittleman, John L.; van Manen, Frank T.; Chamberlain, Michael J.

    2017-01-01

    Foraging behaviors of red wolves (Canis rufus) and coyotes (Canis latrans) are complex and their ability to form congeneric breeding pairs and hybridize further complicates our understanding of factors influencing their diets. Through scat analysis, we assessed prey selection of red wolf, coyote, and congeneric breeding pairs formed by red wolves and coyotes, and found that all 3 had similar diets. However, red wolf and congeneric pairs consumed more white-tailed deer (Odocoileus virginianus) than coyote pairs. Coyotes forming breeding pairs with red wolves had 12% more white-tailed deer in their diet than conspecifics paired with coyotes. Contrary to many studies on coyotes in the southeastern United States, we found coyotes in eastern North Carolina to be primarily carnivorous with increased consumption of deer during winter. Although prey selection was generally similar among the 3 groups, differences in diet among different breeding pairs were strongly associated with body mass. Larger breeding pairs consumed more white-tailed deer, and fewer rabbits (Sylvilagus spp.) and other small mammals. Partitioning of food resources by sympatric red wolves and coyotes is likely via differences in the proportions of similar prey consumed, rather than differences in types of prey exploited. Consequently, our results suggest coexistence of red wolves and coyotes in the southeastern United States may not be possible because there are limited opportunities for niche partitioning to reduce competitive interactions.

  15. ANTHELMINTIC ACTIVITY OF LAPACHOL, β-LAPACHONE AND ITS DERIVATIVES AGAINST Toxocara canis LARVAE

    Directory of Open Access Journals (Sweden)

    Taís MATA-SANTOS

    2015-06-01

    Full Text Available Anthelmintics used for intestinal helminthiasis treatment are generally effective; however, their effectiveness in tissue parasitosis (i.e. visceral toxocariasis is moderate. The aim of this study was to evaluate the in vitro activity of lapachol, β-lapachone and phenazines in relation to the viability of Toxocara canis larvae. A concentration of 2 mg/mL (in duplicate of the compounds was tested using microculture plates containing Toxocara canis larvae in an RPMI-1640 environment, incubated at 37 °C in 5% CO2 tension for 48 hours. In the 2 mg/mL concentration, four phenazines, lapachol and three of its derivatives presented a larvicide/larvistatic activity of 100%. Then, the minimum larvicide/larvistatic concentration (MLC test was conducted. The compounds that presented the best results were nor-lapachol (MLC, 1 mg/mL, lapachol (MLC 0.5 mg/mL, β-lapachone, and β-C-allyl-lawsone (MLC, 0.25 mg/mL. The larvae exposed to the compounds, at best MLC with 100% in vitro activity larvicide, were inoculated into healthy BALB/c mice and were not capable of causing infection, confirming the larvicide potential in vitro of these compounds.

  16. Colorimetric detection of Ehrlichia canis via nucleic acid hybridization in gold nano-colloids.

    Science.gov (United States)

    Muangchuen, Ajima; Chaumpluk, Piyasak; Suriyasomboon, Annop; Ekgasit, Sanong

    2014-08-08

    Canine monocytic ehrlichiosis (CME) is a major thick-bone disease of dog caused by Ehrlichia canis. Detection of this causal agent outside the laboratory using conventional methods is not effective enough. Thus an assay for E. canis detection based on the p30 outer membrane protein gene was developed. It was based on the p30 gene amplification using loop-mediated isothermal DNA amplification (LAMP). The primer set specific to six areas within the target gene were designed and tested for their sensitivity and specificity. Detection of DNA signals was based on modulation of gold nanoparticles' surface properties and performing DNA/DNA hybridization using an oligonucleotide probe. Presence of target DNA affected the gold colloid nanoparticles in terms of particle aggregation with a plasmonic color change of the gold colloids from ruby red to purple, visible by the naked eye. All the assay steps were completed within 90 min including DNA extraction without relying on standard laboratory facilities. This method was very specific to target bacteria. Its sensitivity with probe hybridization was sufficient to detect 50 copies of target DNA. This method should provide an alternative choice for point of care control and management of the disease.

  17. Human case of bacteremia caused by Streptococcus canis sequence type 9 harboring the scm gene.

    Science.gov (United States)

    Taniyama, Daisuke; Abe, Yoshihiko; Sakai, Tetsuya; Kikuchi, Takahide; Takahashi, Takashi

    2017-01-01

    Streptococcus canis (Sc) is a zoonotic pathogen that is transferred mainly from companion animals to humans. One of the major virulence factors in Sc is the M-like protein encoded by the scm gene, which is involved in anti-phagocytic activities, as well as the recruitment of plasminogen to the bacterial surface in cooperation with enolase, and the consequent enhancement of bacterial transmigration and survival. This is the first reported human case of uncomplicated bacteremia following a dog bite, caused by Streptococcus canis harboring the scm gene. The similarity of the 16S rRNA from the infecting species to that of the Sc type strain, as well as the amplification of the species-specific cfg gene, encoding a co-hemolysin, was used to confirm the species identity. Furthermore, the isolate was confirmed as sequence type 9. The partial scm gene sequence harbored by the isolate was closely related to those of other two Sc strains. While this isolate did not possess the erm (A), erm (B), or mef (A), macrolide/lincosamide resistance genes, it was not susceptible to azithromycin: its susceptibility was intermediate. Even though human Sc bacteremia is rare, clinicians should be aware of this microorganism, as well as Pasteurella sp., Prevotella sp., and Capnocytophaga sp., when examining and treating patients with fever who maintain close contact with companion animals.

  18. Biotypes and ScM types of isolates of Streptococcus canis from diseased and healthy cats.

    Science.gov (United States)

    Timoney, J F; Velineni, S; Ulrich, B; Blanchard, P

    2017-04-08

    Lancefield group G Streptococcus canis is a component of the normal urogenital and pharyngeal flora of the cat. It is also frequently implicated in epizootics of severe disease in closed cat colonies and animal shelters. Given the importance of S canis as a feline pathogen and relative lack of published information on characteristics potentially associated with virulence, the authors have compared isolates from healthy and diseased cats in New York and California using fermentation profiles (biotype) and ScM sequences. With few exceptions, isolates associated with disease were biotype 1. Four alleles of scm were identified of which type 1 dominated in diseased cats. Type 4 allelic variants were found only in healthy cats and all but one were biotype 2. Type 2 and 3 alleles showed extensive N-terminal variation suggesting a plasminogen-binding site as found on the type 1 allele was absent. Cat antisera to ScM were opsonobactericidal, and these potentially protective antibodies increased during convalescence. British Veterinary Association.

  19. Clinical and Histopathological Evaluation of Terbinafine Treatment in Cats Experimentally Infected with Microsporum canis

    Directory of Open Access Journals (Sweden)

    T. Kotnik

    2006-01-01

    Full Text Available The efficacy of terbinafine hydrochloride (Lamisil©, Novartis in the treatment of 27 M. canis infected cats was followed. Treatment was started on the 17th day post inoculation (p.i., when successful experimental infection was proved. Nine cats were treated with low-dose terbinafine 10-20 mg/kg QD (LD group, nine cats were treated with high-dose terbinafine 30-40 mg/kg QD (HD group and nine were left untreated as a control group (C group. The efficacy of the treatment was evaluated using Wood's lamp examination, fungal culture and histopathology. All cats were positive 14 days p.i. Sixty days p.i. 8 cats from the LD group, 9 from the C group and 2 cats from the HD group had fungi in the tissue. Ninety days p.i. the HD group was free of fungi in the skin and other tests became negative on the 120th day p.i. Statistically significant differences were found between the HD group and both of the other groups (p M. canis yielded an inflammatory reaction of a mononuclear and neutrophil type in the cat skin. Hyperplastic interstitial dermatitis was a predominant tissue reaction although other types were also present during the study.

  20. Detection of Ehrlichia canis in domestic cats in the central-western region of Brazil

    Directory of Open Access Journals (Sweden)

    Ísis Assis Braga

    2014-06-01

    Full Text Available Ehrlichiosis is a worldwide distributed disease caused by different bacteria of the Ehrlichia genus that are transmitted by arthropod vectors. Its occurrence in dogs is considered endemic in several regions of Brazil. Regarding cats, however, few studies have been done and, consequently, there is not enough data available. In order to detect Ehrlichia spp. in cats from the central-western region of Brazil, blood and serum samples were collected from a regional population of 212 individuals originated from the cities of Cuiabá and Várzea Grande. These animals were tested by the Immunofluorescence Assay (IFA and the Polymerase Chain Reaction (PCR designed to amplify a 409 bp fragment of the dsb gene. The results obtained show that 88 (41.5% cats were seropositive by IFA and 20 (9.4% cats were positive by PCR. The partial DNA sequence obtained from PCR products yielded twenty samples that were found to match perfectly the Ehrlichia canis sequences deposited on GenBank. The natural transmission of Ehrlichia in cats has not been fully established. Furthermore, tick infestation was not observed in the evaluated cats and was not observed any association between age, gender and positivity of cats in both tests. The present study reports the first serological and molecular detection of E. canis in domestic cats located in the endemic area previously mentioned.

  1. Effects of irradiation on the biology of the infective larvae of Toxocara canis in the mouse

    Energy Technology Data Exchange (ETDEWEB)

    Barriga, O.O.; Myser, W.C.

    1987-02-01

    Mice were infected with either 2000 normal or irradiated embryonated eggs of Toxocara canis and the number of larvae in their livers, lungs, brains, and carcasses investigated at 5, 20, and 33 days of infection. Mortality of mice infected with normal eggs was 33% between day 4 and 8 postinfection but there was no mortality among mice infected with irradiated eggs. Irradiation with 60, 90, or 150 kr of X-rays inhibited the migration of larvae from the livers and lungs and their accumulation in brain and carcass in proportion to the irradiation dose. By day 33 of infection, the ratio of larvae in liver and lungs to larvae in brain and carcass was 0.16 in normal mice, 0.42 in 60-kr mice, 0.98 in 90-kr mice, and 23.3 in 150-kr mice. Irradiated larvae, particularly those migrating through the peritoneal cavity, died faster than normal larvae until day 20. Irradiation favored survival after day 20. By days 20 and 33 postinfection the total parasite load was 29% and 8%, respectively, of the administered dose in control mice, 18% and 12% in 60-kr mice, 8% and 4% in 90-kr mice, and 0.9% and 0.3% in 150-kr mice. Irradiation of infective T. canis larvae, then, reduces their pathogenicity, inhibits their migration from liver and lungs, kills some of the parasites during the first 3 weeks of infection, but favors their late survival in the host.

  2. Ecological changes in Coyotes (Canis latrans in response to the ice age megafaunal extinctions.

    Directory of Open Access Journals (Sweden)

    Julie A Meachen

    Full Text Available Coyotes (Canis latrans are an important species in human-inhabited areas. They control pests and are the apex predators in many ecosystems. Because of their importance it is imperative to understand how environmental change will affect this species. The end of the Pleistocene Ice Age brought with it many ecological changes for coyotes and here we statistically determine the changes that occurred in coyotes, when these changes occurred, and what the ecological consequences were of these changes. We examined the mandibles of three coyote populations: Pleistocene Rancho La Brean (13-29 Ka, earliest Holocene Rancho La Brean (8-10 Ka, and Recent from North America, using 2D geometric morphometrics to determine the morphological differences among them. Our results show that these three populations were morphologically distinct. The Pleistocene coyotes had an overall robust mandible with an increased shearing arcade and a decreased grinding arcade, adapted for carnivory and killing larger prey; whereas the modern populations show a gracile morphology with a tendency toward omnivory or grinding. The earliest Holocene populations are intermediate in morphology and smallest in size. These findings indicate that a niche shift occurred in coyotes at the Pleistocene/Holocene boundary - from a hunter of large prey to a small prey/more omnivorous animal. Species interactions between Canis were the most likely cause of this transition. This study shows that the Pleistocene extinction event affected species that did not go extinct as well as those that did.

  3. Neuroleadership: Themes and limitations of an emerging interdisciplinary field.

    Science.gov (United States)

    Kuhlmann, Naila; Kadgien, Chelsie A

    2018-05-01

    The relationship between brain and behaviour has perplexed philosophers and scientists since the time of the ancient Greeks. Recent technological advances have allowed neuroscience to flourish, alongside growing romanticism that reductionist studies will allow us to understand complex interpersonal behaviours. Organizational cognitive neuroscience and neuroleadership are newly established interdisciplinary fields that use neuroscientific techniques to answer questions about behaviours within organizations. Neuroleadership aims to discover screening tools for good leaders, to improve leadership skills, and to identify unconscious factors affecting behaviour in hopes of improving management and leadership practices. Although proponents of neuroleadership are optimistic, if we know anything about the functions of the human brain and our interpersonal behaviours, it is that they are exquisitely complex and context dependant. Here, we briefly discuss the major themes emerging in the new field of neuroleadership and the limitations and potential consequences of applying findings from the field prematurely and with blind optimism.

  4. Some Themes in the Discussion of the Quality of Life

    DEFF Research Database (Denmark)

    Røpke, Inge

    1999-01-01

    Abstract This paper is motivated by the need to discuss the quality of life as a part of the background for devising environmental strategies. When environmental strategies are devised, it is often more or less tacitly assumed that we should try to avoid measures that imply a decrease in the level....... The critical perspective is developed by dealing with welfare or the quality of life: what does it mean to have a good life? On the basis of this discussion, the relationship between consumption and welfare can then be assessed. The approach to the discussion of the quality of life in this paper is first...... with the different themes in the discussion of the quality of life. The point of departure is taken in some critical considerations related to the traditional conceptualization of welfare. After that, some inspiration from the debate on basic needs is outlined and supplemented with some reflections on the dual...

  5. THE THEME OF THE CRUCIFIXION OF CHRIST IN VISUAL ARTS

    Directory of Open Access Journals (Sweden)

    Adrian STOLERIU

    2015-06-01

    Full Text Available The Crucifixion of Christ is one of the major Biblical events in the context of the four Gospels, also marking one of the most frequently met themes in the iconography of Christian art. The focus of the paper is to underline the main aspects of the visual representation of this tense moment in the history of Christianity, referring to representative works of the artistic heritage inspired by the event of Christ’s death on the cross. Thus, a number of famous works of art history are analyzed in relation to the described composition, the represented characters and their importance. They belong both to traditional artistic fields, such as painting, to modern ones, thus taking into account some of the most popular film representations on this topic.

  6. Communication and Health - themes, issues and Latin American perspectives

    OpenAIRE

    Araujo, Inesita Soares de; Cabrera, Jesús Arroyave

    2012-01-01

    Editorial Reciis Vol 6, No. 4 -. Communication and Health - themes, issues and Latin American perspectives Editorial Vol Reciis 6, No. 4 -. De Comunicación y Salud - temas, problemas y perspectivas de América Latina A Comunicação e Saúde vem conhecendo nas duas últimas décadas uma grande expansão. Formada na interface de dois campos solidamente constituídos – o da Comunicação e o da Saúde – e frequentemente articulada com os da Ciência &Tecnologia e da Educação, a Comunicação e Saúd...

  7. Discussing agrochemical themes: an approach through socio-scientific controversies

    Directory of Open Access Journals (Sweden)

    Eril Medeiros da Fonseca

    2017-12-01

    Full Text Available The theme of "agro-toxicology" in the Rural Education pervades key issues to be problematized, such as the care of rural workers, from the concept of health as something broad, involving access to cultural goods, leisure and communication and still, the collective physical, mental and social well-being. The use of pesticides, in addition to compromising the health of those who work in the field and those who feed on what is produced in the field, brings with it a conception of health that, in addition to suffering and individualizing, affects our biological diversity. The objective of this study is to discuss pesticides and their implications for health, through the approach of Socio-Scientific Controversies (CSC in Science Teaching and Rural Education.

  8. METHODOLOGY FOR CROSS-CURRICULAR THEME OF THE ENVIRONMENTAL AXIS

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    José Luis Aparicio López

    2015-04-01

    Full Text Available This article introduces a methodology to identify the presence of the environmental axis in educational programs in Bachelors in the Universidad Autónoma de Guerrero, Mexico. It is sustained on competency-based education and constructionism, due to they appeal to humanism to deal current problems. It is composed of four phases: committee conformation, theoretical and conceptual concerning analysis, construction and application of instruments on a PE, and identification of the cross-curricular theme level. Even though the proposed methodology is applied to the environment, it is feasible to adapt to other axes, such as human rights, multiculturalism, and poverty, relevant to the educational context of the state of Guerrero.

  9. Biblical and liturgical themes in Krzysztof Penderecki’s activity

    Directory of Open Access Journals (Sweden)

    Janusz Drewniak

    2007-06-01

    Full Text Available Krzysztof Penderecki (born 1933 is considered to be one of the most outstanding contemporary composers. The religious theme is often taken to be an inspiration for his vocal-instrumental output. Penderecki presents in his compositions the religious and moral problems related to the human nature and existence. The principal issues in his activity are a trial to find a reason of evil and misfortune and also the vision of ordeal. The composer makes use of not only biblical and liturgical texts but also religious poetry mainly in latin language. His religious output has a concert character thanks to the musician language and composing techniques. His own commentaries concerning his compositions prove that his religious activity is an artistic confession of his faith.

  10. Fatal Sarcocystis canis-like hepatitis in an Indo-Pacific bottlenose dolphin (Tursiops aduncus) in Hong Kong

    Science.gov (United States)

    Unlike most species in the genus Sarcocystis, Sarcocystis canis has a broad intermediate host range. Its life cycle is incompletely known and most reports are from the USA. Here we report fatal hepatitis in a 4 year old male Indo-Pacific bottlenose dolphin (Tursiops aduncus) from Hong Kong associate...

  11. Spatial heterodyne interferometry of VY Canis Majoris, alpha Orionis, alpha Scorpii, and R Leonis at 11 microns

    International Nuclear Information System (INIS)

    Sutton, E.C.; Storey, J.W.V.; Betz, A.L.; Townes, C.H.; Spears, D.L.

    1977-01-01

    Using the technique of heterodyne interferometry, measurements were made of the spatial distribution of 11 micron radiation from four late type stars. The circumstellar shells surrounding VY Canis Majoris, alpha Orionis, and alpha Scorpii were resolved, whereas that of R Leonis was only partially resolved at a fringe spacing of 0.4 sec

  12. Spatial heterodyne interferometry of VY Canis Major's, alpha Orionis, alpha Scorpii, and R leonis at 11 microns

    Science.gov (United States)

    Sutton, E. C.; Storey, J. W. V.; Betz, A. L.; Townes, C. H.; Spears, D. L.

    1977-01-01

    Using the technique of heterodyne interferometry, measurements were made of the spatial distribution of 11 micron radiation from four late type stars. The circumstellar shells surrounding VY Canis Majoris, alpha Orionis, and alpha Scorpii were resolved, whereas that of R Leonis was only partially resolved at a fringe spacing of 0.4 sec.

  13. Production of Toxocara cati TES-120 Recombinant Antigen and Comparison with its T. canis Homolog for Serodiagnosis of Toxocariasis

    Science.gov (United States)

    Zahabiun, Farzaneh; Sadjjadi, Seyed Mahmoud; Yunus, Muhammad Hafiznur; Rahumatullah, Anizah; Moghaddam, Mohammad Hosein Falaki; Saidin, Syazwan; Noordin, Rahmah

    2015-01-01

    Toxocariasis is a cosmopolitan zoonotic disease caused by the infective larvae of Toxocara canis and T. cati. Diagnosis in humans is usually based on clinical symptoms and serology. Immunoglobulin G (IgG)-enzyme-linked immunosorbent assay kits using T. canis excretory–secretory (TES) larval antigens are commonly used for serodiagnosis. Differences in the antigens of the two Toxocara species may influence the diagnostic sensitivity of the test. In this study, T. cati recombinant TES-120 (rTES-120) was cloned, expressed, and compared with its T. canis homolog in an IgG4-western blot. The diagnostic sensitivity and specificity of T. cati rTES-120 were 70% (33/47) and 100% (39/39), respectively. T. canis rTES-120 showed 57.4% sensitivity and 94.4% specificity. When the results of assays using rTES-120 of both species were considered, the diagnostic sensitivity was 76%. This study shows that using antigens from both Toxocara species may improve the serodiagnosis of toxocariasis. PMID:26033026

  14. In vitro culture and structural differences in the major immunoreactive protein gp36 of geographically distant Ehrlichia canis isolates

    Czech Academy of Sciences Publication Activity Database

    Zweygarth, E.; Cabezas Cruz, Alejandro; Josemans, A.I.; Oosthuizen, M.C.; Matjila, P.T.; Lis, K.; Broniszewska, M.; Schöl, H.; Ferrolho, J.; Grubhoffer, Libor; Passos, L.M.F.

    2014-01-01

    Roč. 5, č. 4 (2014), s. 423-431 ISSN 1877-959X Institutional support: RVO:60077344 Keywords : Ehrlichia canis * In vitro culture * IDE8 tick cells * DH82 * 16S rRNA * gp36 Subject RIV: FN - Epidemiology, Contagious Diseases ; Clinical Immunology Impact factor: 2.718, year: 2014

  15. Killing and caching of an adult White-tailed deer, Odocoileus virginianus, by a single Gray Wolf, Canis lupus

    Science.gov (United States)

    Nelson, Michael E.

    2011-01-01

    A single Gray Wolf (Canis lupus) killed an adult male White-tailed Deer (Odocoileus virginianus) and cached the intact carcass in 76 cm of snow. The carcass was revisited and entirely consumed between four and seven days later. This is the first recorded observation of a Gray Wolf caching an entire adult deer.

  16. The in vitro effect of prolactin on the growth, motility and expression of prolactin receptors in larvae of Toxocara canis.

    Science.gov (United States)

    Chávez-Güitrón, L E; Morales-Montor, J; Muñoz-Guzmán, M A; Nava-Castro, K E; Ramírez-Álvarez, H; Moreno-Méndoza, N A; Hernández-Cervantes, R; Alba-Hurtado, F

    2016-07-15

    The in vitro effect of prolactin (PRL) on the growth and motility of Toxocara canis larvae was assessed. Additionally, the expression and location of prolactin receptors (PRL-Rs) were determined in the larvae. Larvae of T. canis were incubated with different concentrations of PRL for different periods of time. The stimulated larvae accelerated their enlargement and increased their motility. The mean percentage of PRL-R+ cells in non-stimulated larvae, measured by flow cytometry was 7.3±0.3%. Compared with non-stimulated larvae, the mean fluorescence intensity (pPCR. The sequence of this fragment showed 99% similarity with the gene fragment that codes for the PRL-R of the domestic dog. A high concentration of PRL-Rs was immune-located in the posterior region of the larval intestine; therefore, the intestinal cells in this region were most likely the targets for this hormone. Based on these results, PRL-Rs were identified in T. canis larvae, and the in vitro stimulation with PRL increased the number of these receptors, accelerated the growth and modified the activity of larvae. All of the above suggest that T. canis larvae are evolutionarily adapted to recognize the PRL of their definitive host and furthermore might explain the reactivation of tissue-arrested larvae during the gestation of bitches, which does not occur in gestating females of other species. Copyright © 2016 Elsevier B.V. All rights reserved.

  17. Evidence for eosinophil recruitment, leukotriene B4 production and mast cell hyperplasia following Toxocara canis infection in rats

    Directory of Open Access Journals (Sweden)

    D. Carlos

    2011-04-01

    Full Text Available It is well known that eosinophilia is a key pathogenetic component of toxocariasis. The objective of the present study was to determine if there is an association between peritoneal and blood eosinophil influx, mast cell hyperplasia and leukotriene B4 (LTB4 production after Toxocara canis infection. Oral inoculation of 56-day-old Wistar rats (N = 5-7 per group with 1000 embryonated eggs containing third-stage (L3 T. canis larvae led to a robust accumulation of total leukocytes in blood beginning on day 3 and peaking on day 18, mainly characterized by eosinophils and accompanied by higher serum LTB4 levels. At that time, we also noted increased eosinophil numbers in the peritoneal cavity. In addition, we observed increased peritoneal mast cell number in the peritoneal cavity, which correlated with the time course of eosinophilia during toxocariasis. We also demonstrated that mast cell hyperplasia in the intestines and lungs began soon after the T. canis larvae migrated to these compartments, reaching maximal levels on day 24, which correlated with the complete elimination of the parasite. Therefore, mast cells appear to be involved in peritoneal and blood eosinophil infiltration through an LTB4-dependent mechanism following T. canis infection in rats. Our data also demonstrate a tight association between larval migratory stages and intestinal and pulmonary mast cell hyperplasia in the toxocariasis model.

  18. Discontinuous Residue and Theme in Higher-Order Semiotic: A Case for Interlocking Systems

    Directory of Open Access Journals (Sweden)

    Ali Akbar Farahani

    2008-11-01

    Full Text Available The fallacy persists in discourse analysis research to explore lexicogrammatical phenomena detached from any adjacent plane of the meaning potential. In an attempt to dispel this and toss out some preconceived notions about what a modern SFG vantage point should involve, this study homes in on one aspect of SFG within prose fiction in particular, which is very revealing in terms of how separate system networks are actually in synergistic simultaneity, and how SFG allows one , phenomenally well, to bring such synergies out, getting to the heart of the fact that language pervasively operates on multiple planes of textuality simultaneously. Thus, building upon Halliday’s 2004 work, the quest is if it is interpersonally significant when the Residue is split into two parts; more importantly, if it is also laced with some lexicogrammatical quality on the textual plane, in light of the fairly well-entrenched assumption that there is always Theme at work when the Residue is split. Halliday is the only scholar to touch upon the topic of Discontinuous Residue and its relationship to Marked Theme in the culmination of his groundbreaking career, i.e. his 2004 work. Having driven home the proposal to make into a watchword the ubiquity of interlocking macro-semantic system networks, some pedagogical and research implications and suggestions flowing from this are brought up.

  19. The use of biblical themes in the debate concerning the xenophobic attacks in South Africa

    Directory of Open Access Journals (Sweden)

    Zorodzai Dube

    2015-03-01

    Full Text Available The study draws from the ideas of J�rgen Habermas, Daniel Trotter and Christian Fuchs, Zizi Papacharissis, Yochai Benkler and Christian Fuchs to investigate the use of social media as a platform to express ideas against xenophobic-related attacks in South Africa (April 2015�May 2015. The data was collected from twitter, YouTube and Facebook. Most views came from the Facebook platform called �Stop xenophobia�. Using ATLAS.ti, software for qualitative research, the data was coded into interpretive variables or categories. The results show that themes such as hospitality, morality, creation and ethics received highest frequency as reasons to condemn xenophobia. The research further reveals that the social media data is much candid in comparison to state controlled media, where views and ideas were censored to protect the economic and public image of the country. Unlike the controlled government outlets which focus on the possible correlation between xenophobic attacks to economic outlook, the social media focuses on moral and ethical issues � issues that define our collective as human beings and tackles xenophobia from the perspective of ethics and shared human values.Intradisciplinary and/or interdisciplinary implications: This study is interdisciplinary in nature due to the use of theories in media studies and social sciences to investigate the use of biblical themes in the fight against xenophobia.

  20. Representations of Self and Parents, and Relationship Themes, in Adolescents with Post Traumatic Stress Disorder (PTSD).

    Science.gov (United States)

    Shafran, Naama; Shahar, Golan; Berant, Ety; Gilboa-Schechtman, Eva

    2016-07-01

    Negative perceptions of self and others have lately become one of the criteria for Posttraumatic Stress Disorder (PTSD) among adults and adolescents. Drawing from theories of mental representations in psychopathology, this study examined self-reported negative cognitions, self and parental representations, and relationship themes among adolescents with and without PTSD. Thirty one adolescents with PTSD (11 boys, mean age = 14.06, SD = 2.24) were matched with 29 adolescents who had no psychiatric diagnosis (11 boys, mean age = 14.96, SD = 1.78). Adolescents completed self-report measures, wrote a description of self, mother and father, and were interviewed about positive and negative relationship episodes with mother, father, and peers. Adolescents with PTSD reported more self-criticism and performance evaluation than did controls. Their self-representation exhibited a lower sense of agency, which was related to structural variables (i.e., less integrative description). Although parental representations of adolescents with PTSD were not generally less benevolent or more punitive than those of controls, their relationship themes revealed a higher proportion of the wish to be distant from others. Adolescents with PTSD exhibited more passive responses and perceived more dominant or controlling responses from their parents. Findings point out to a serious impairment in representations of self and relationship patterns in adolescent PTSD.

  1. "Wolves (Canis lupus) and dogs (Canis familiaris) differ in following human gaze into distant space but respond similar to their packmates' gaze": Correction to Werhahn et al. (2016).

    Science.gov (United States)

    2017-02-01

    Reports an error in "Wolves ( Canis lupus ) and dogs ( Canis familiaris ) differ in following human gaze into distant space but respond similar to their packmates' gaze" by Geraldine Werhahn, Zsófia Virányi, Gabriela Barrera, Andrea Sommese and Friederike Range ( Journal of Comparative Psychology , 2016[Aug], Vol 130[3], 288-298). In the article, the affiliations for the second and fifth authors should be Wolf Science Center, Ernstbrunn, Austria, and Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna/ Medical University of Vienna/University of Vienna. The online version of this article has been corrected. (The following abstract of the original article appeared in record 2016-26311-001.) Gaze following into distant space is defined as visual co-orientation with another individual's head direction allowing the gaze follower to gain information on its environment. Human and nonhuman animals share this basic gaze following behavior, suggested to rely on a simple reflexive mechanism and believed to be an important prerequisite for complex forms of social cognition. Pet dogs differ from other species in that they follow only communicative human gaze clearly addressed to them. However, in an earlier experiment we showed that wolves follow human gaze into distant space. Here we set out to investigate whether domestication has affected gaze following in dogs by comparing pack-living dogs and wolves raised and kept under the same conditions. In Study 1 we found that in contrast to the wolves, these dogs did not follow minimally communicative human gaze into distant space in the same test paradigm. In the observational Study 2 we found that pack-living dogs and wolves, similarly vigilant to environmental stimuli, follow the spontaneous gaze of their conspecifics similarly often. Our findings suggest that domestication did not affect the gaze following ability of dogs itself. The results raise hypotheses about which other dog skills

  2. Enteric Parasitic in canines (Canis familiaris in the urban area of Coroico, Nor Yungas department of La Paz Bolivia

    Directory of Open Access Journals (Sweden)

    Llanos Mariana

    2010-10-01

    Full Text Available A wide variety species of intestinal protozoa and helminthes are pathogen for the domestic animals. Between April and November 2009, a study was done with the purpose of determining the enteric parasitic infection in dogs (Cannis familiaris, 96 dogs (58 males and 38 females with owner of 10 species, one hybrid, eight age groups in two seasons of the urban area of the Coroico town, Nor Yungas, department of La Paz, Bolivia. The coproparasitology diagnostic was made by direct examination, with the Willis-Molloy flotation simple technique with a solution oversaturated of sodium chloride. It was detected one or more species of helminthes and protozoa, was used the chi-square and descriptive method for the statistical analysis. The results were: from the 96 sampled dogs, in 87% is present at less one type of parasitic shape, were identify: Ancylostoma spp, Toxocara canis, Strogyloides spp, Giardia spp, Isospora canis, Trichuris vulpis, Ancylostoma spp/Uncinaria spp and Dipylidium caninum. The evaluation by season show a (p ≤ 0,05 for the Giardia spp. In a humidity season, but not for a dry season, the rest of parasites can be found in both seasons. By sex in a humidity season T.canis in females 43% and 22% in males, in dry season by sex was found T.vulpis in female with a high frequency (p ≤ 0,05, the rest of parasites do not show statistic differences in both seasons. By age in dry season T. canis and Stronyiloides sp. prevails 1-24 months and 49-72 months respectively, in a humidity season T. canis prevails in the same age (p ≤ 0,05. By race in dry season Ancylostoma spp Uncinaria spp prevails in the race Pekingese, in humidity season Strongyloides sp prevails in the Cocker race. Prevail in both seasons A. canis y T. canis. In relation to the mono-parasitism and multi-parasitism, was viewed, in both seasons the dogs multi-parasitism are more than the mono-parasitism.

  3. The place of the clock in pediatric advice: rationales, cultural themes, and impediments to breastfeeding.

    Science.gov (United States)

    Millard, A V

    1990-01-01

    This analysis treats the U.S. medical literature as evidence concerning the formal system of knowledge in allopathic medicine. An examination of pediatric advice on breastfeeding reveals the logic of medical reasoning, the use of scientific rationales, and the intrusion of specific cultural themes. The corpus of data includes works of 18 authors published in 36 volumes from 1897 to 1987, 27 volumes being editions of two major pediatric textbooks. All sources advocate breastfeeding but the detailed advice on how to carry out the process actually tends to undermine it. Moreover, the clock has provided the main frame of reference, creating regimentation reminiscent of factory work, segmenting breastfeeding into a series of steps, and emphasizing efficiency in time and motion. Feeding schedules were advocated in former decades as a matter of discipline for the infant, but nowadays they are viewed as biologically innate to normal infants and to breast milk production. The literature manifests responses over the century to behavioral, biochemical and physiological studies; however, except possibly for one textbook, no thorough rethinking has occurred. Sources of the 1980s continue to focus on the tempo of feeding as a major concern. Cultural themes besides the factory model of breastfeeding include the extension of professional advice to family matters, the subordination of lay women to professional expertise, mistrust of women's bodily signals including the let-down reflex in determining the timing of feedings, mistrust of signals from infants as well, and a professional ideal of flexible advice coupled with rigid limits concerning schedules. The literature interweaves the cultural themes with rationales based on physiological studies in support of specific regimens in breastfeeding, and the relegation of control in breastfeeding to medical experts denies the validity of mutual bodily and emotional responses within the mother-infant dyad. Pediatric authorities thus

  4. From The Human-Environment Theme Towards Sustainability – Danish Geography and Education for Sustainable Development

    DEFF Research Database (Denmark)

    Grindsted, Thomas Skou

    2013-01-01

    Research on geography in relation to education for sustainable development (ESD), has only recently climbed the research agenda. The geopolitics of intended learning outcomes in the ESD debate, carries policy that produce dilemmas and challenges confronted with disciplinary traditions....... In this article it is examined dialectically how the changing climate and the paradigm of sustainability have been dealt with in Danish geographical university education. It is shown how curriculum programs in higher geographical education have taken different approaches to address issues of sustainability...... and climate change and how geographers articulate their role and function as knowledge on human-environment interactions changes. The analysis of the geographical education reveal that geographers’ find their discipline contribute considerably to ESD, and thus the human environment theme seems...

  5. The Concept Maps as a Didactic Resource Tool of Meaningful Learning in Astronomy Themes

    Science.gov (United States)

    Silveira, Felipa Pacífico Ribeiro de Assis; Mendonça, Conceição Aparecida Soares

    2015-07-01

    This article presents the results of an investigation that sought to understand the performance of the conceptual map (MC) as a teaching resource facilitator of meaningful learning of scientific concepts on astronomical themes, developed with elementary school students. The methodology employed to obtain and process the data was based on a quantitative and qualitative approach. On the quantitative level we designed a quasi-experimental research with a control group that did not use the MC and an experimental group that used the MC, both being evaluated in the beginning and end of the process. In this case, the performance of both groups is displayed in a descriptive and analytical study. In the qualitative approach, the MCs were interpreted using the structuring and assigned meanings shared by the student during his/her presentation. The results demonstrated through the improvement of qualifications that the MC made a difference in conceptual learning and in certain skills revealed by learning indicators.

  6. Attitudinal effects of degrading themes and sexual explicitness in video materials.

    Science.gov (United States)

    Golde, J A; Strassberg, D S; Turner, C M; Lowe, K

    2000-07-01

    This study examined the independent and interactive effects of sexual explicitness and degrading themes toward women on mens' attitudes following exposure to video presentations of male-female interactions. Subjects were 83 male college students who viewed video vignettes under one of four stimulus conditions: (a) sexually explicit/degrading, (b) sexually explicit/nondegrading, (c) nonexplicit/degrading, and (d) nonexplicit/nondegrading. Results revealed that men exposed to degrading material, regardless of explicitness, were significantly more likely to express attitudes supportive of rape, while explicitness had no significant main or interactive effect on these attitudes. Further, the interaction of explicitness with degradation was found to impact scores on a measure of sexual callousness. Theoretical and clinical implications of these findings are discussed.

  7. Infrared Space Observatory Observations of Far-Infrared Rotational Emission Lines of Water Vapor toward the Supergiant Star VY Canis Majoris

    Science.gov (United States)

    Neufeld, David A.; Feuchtgruber, Helmut; Harwit, Martin; Melnick, Gary J.

    1999-06-01

    We report the detection of numerous far-infrared emission lines of water vapor toward the supergiant star VY Canis Majoris. A 29.5-45 μm grating scan of VY CMa, obtained using the Short-Wavelength Spectrometer (SWS) of the Infrared Space Observatory at a spectral resolving power λ/Δλ of ~2000, reveals at least 41 spectral features due to water vapor that together radiate a total luminosity of ~25 Lsolar. In addition to pure rotational transitions within the ground vibrational state, these features include rotational transitions within the (010) excited vibrational state. The spectrum also shows the 2Π1/2(J=5/2)VY CMa were carried out in the instrument's Fabry-Perot mode for three water transitions: the 725-616 line at 29.8367 μm, the 441-312 line at 31.7721 μm, and the 432-303 line at 40.6909 μm. The higher spectral resolving power λ/Δλ of approximately 30,000 thereby obtained permits the line profiles to be resolved spectrally for the first time and reveals the ``P Cygni'' profiles that are characteristic of emission from an outflowing envelope. Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries: France, Germany, the Netherlands, and the UK) with the participation of ISAS and NASA.

  8. Foreword to the theme issue on geospatial computer vision

    Science.gov (United States)

    Wegner, Jan Dirk; Tuia, Devis; Yang, Michael; Mallet, Clement

    2018-06-01

    Geospatial Computer Vision has become one of the most prevalent emerging fields of investigation in Earth Observation in the last few years. In this theme issue, we aim at showcasing a number of works at the interface between remote sensing, photogrammetry, image processing, computer vision and machine learning. In light of recent sensor developments - both from the ground as from above - an unprecedented (and ever growing) quantity of geospatial data is available for tackling challenging and urgent tasks such as environmental monitoring (deforestation, carbon sequestration, climate change mitigation), disaster management, autonomous driving or the monitoring of conflicts. The new bottleneck for serving these applications is the extraction of relevant information from such large amounts of multimodal data. This includes sources, stemming from multiple sensors, that exhibit distinct physical nature of heterogeneous quality, spatial, spectral and temporal resolutions. They are as diverse as multi-/hyperspectral satellite sensors, color cameras on drones, laser scanning devices, existing open land-cover geodatabases and social media. Such core data processing is mandatory so as to generate semantic land-cover maps, accurate detection and trajectories of objects of interest, as well as by-products of superior added-value: georeferenced data, images with enhanced geometric and radiometric qualities, or Digital Surface and Elevation Models.

  9. Theme day: corrosion and surface treatments in nuclear facilities. Proceedings

    International Nuclear Information System (INIS)

    2012-02-01

    This document brings together the available presentations given at the theme day organized by the Bourgogne Nuclear Pole on the topic of corrosion and surface treatments in nuclear facilities. Eleven presentations (slides) are compiled in this document: 1 - Introduction - PNB centre of competitiveness and R and D activities (A. Mantovan, PNB); 2 - Corrosion damage (M. Foucault, Areva NP - Centre Technique Le Creusot); 3 - Corrosion mechanisms (R. Oltra, UB-ICB); 4 - Examples of expertise management (C. Duret-Thual, Institut de la corrosion/Corrosion Institute); 5 - General framework of surface treatments (C. Nouveau, ENSAM Cluny Paris Tech); 6 - Surfaces et interfaces characterisation - Part A (C. Langlade, Y. Gachon, UTBM and HEF); 7 - Surfaces et interfaces characterisation - Part B (C. Langlade, Y. Gachon, UTBM and HEF); 8 - Ion beam surface treatment (Y. Le Guellec, Quertech Ingenierie); 9 - Impact surface treatment (G. Saout, Sonats); 10 - Metal oxides Characterisation by US laser (R. Oltra, UB-ICB); 11 - Detection and Characterisation of intergranular corrosion (Y. Kernin, Stephane Bourgois, Areva Intercontrole)

  10. Recreating Jane: “Austenland” and the Regency Theme Park

    Directory of Open Access Journals (Sweden)

    Maddalena Pennacchia

    2017-12-01

    Full Text Available In the maze of Austen’s ever-expanding textuality – with its prequels, sequels, rewritings and adaptations – it may be worth paying attention to an unpretentious little book by Shannon Hale titled Austenland (2007. The story is about the adventures of a New Yorker thirty-something with a name that says it all: Jane. Being obsessed with Mr Darcy as played by Colin Firth, she decides to be healed by her excessive Austenian fantasies (or rather to indulge in them for the last time by spending all her savings on a English Regency Theme park that promises to offer Janeites a real full immersive Austen experience. What interests me in this post-Austenian story is the embedded discourse of leisure and tourism in the age of participatory culture, when an everywoman like Jane brings to the fore the need to be more involved in re-creative activities that are triggered by reading Austen’s novels.

  11. Measuring the operational efficiency of individual theme park attractions.

    Science.gov (United States)

    Kim, Changhee; Kim, Soowook

    2016-01-01

    This study assesses the operation efficiency of theme park attractions using the data envelopment analysis, utilizing actual data on 15 attractions at Samsung Everland located in Yongin-si, Republic of Korea. In particular, this study identifies crowding and waiting time as one of the main causes of visitor's satisfaction, and analyzes the efficiency of individual attractions in terms of waiting time. The installation area, installation cost, and annual repair cost are set as input factors and the number of annual users and customer satisfaction as output factors. The results show that the roller coaster-type attractions were less efficient than other types of attractions while rotating-type attractions were relatively more efficient. However, an importance performance analysis on individual attraction's efficiency and satisfaction showed that operational efficiency should not be the sole consideration in attraction installation. In addition, the projection points for input factors for efficient use of attractions and the appropriate reference set for benchmarking are provided as guideline for attraction efficiency management.

  12. Radioactivity And Nuclear Themes In Croatian Popular Culture

    International Nuclear Information System (INIS)

    Franic, Z.; Franic, S.

    2015-01-01

    Popular culture refers to the entirety of ideas, perspectives, attitudes, behaviours, ways of communication, cultural and artistic products, (visual, auditory, written, etc.) as well as other phenomena in the real or virtual world within mainstream culture. Heavily influenced by mass media, this collection of ideas permeates the everyday lives of society. In the so-called atomic age, which corresponds to the cold war period, stylistic coloration and application of the concepts of radiation that have persisted in everyday life to this day can be classified into four main groups of radiological-nuclear themes: monsters and mutants associated with radiation, nuclear accidents, nuclear terrorism and nuclear optimism. This paper discusses some examples relating to radioactivity, radiation and nuclear topics in Croatian popular culture, with special reference to the mass media, including some Internet portals. In Croatian mass media, like in other cultures, radiation and nuclear metaphors symbolize something scary and completely incomprehensible. However, further systematic research would be needed to analyse and explain all of the stereotypes in more detail. Results would be useful in creating a more effective way for informing the general public about the effects and use of radiation and nuclear technology, which is expected to play a far greater role in solving numerous problems dealing with energy supply, medicine, etc. in the near future. It should be noted that nowadays the collective public fears shift from radiation to other global threats such as climate change, genetically modified organisms, global terrorism and others. (author).

  13. Chameleon Changes: An Exploration of Racial Identity Themes of Multiracial People

    Science.gov (United States)

    Miville, Marie L.; Constantine, Madonna G.; Baysden, Matthew F.; So-Lloyd, Gloria

    2005-01-01

    The current study explored essential themes of racial identity development among 10 self-identified multiracial adults from a variety of racial backgrounds. Participants were interviewed using a semistructured protocol, and the interviews were recorded, transcribed, and then coded for themes by research team members. Four primary themes were…

  14. The Tourism Experience Offered by Religious Theme Parks: Taman Tamadun Islam (TTI) in Malaysia

    OpenAIRE

    Moal - Ulvoas, Gaëlle M

    2016-01-01

    Theme parks are major drivers of tourism development and experience is a central concept in tourism research. This study investigates the experience potential associated with religious theme parks which offer a combination of religious and secular activities. The experiences of visitors to Taman Tamadun Islam (TTI), a Muslim theme park based in Malaysia, are identified through the analysis of visitors’ feedback on Tripadvisor.

  15. 77 FR 43117 - Meeting of the Cold War Advisory Committee for the Cold War Theme Study

    Science.gov (United States)

    2012-07-23

    ... the Cold War Advisory Committee for the Cold War Theme Study AGENCY: National Park Service, Interior... Committee Act, 5 U.S.C. Appendix, that the Cold War Advisory Committee for the Cold War Theme Study will... National Park Service (NPS) concerning the Cold War Theme Study. DATES: The teleconference meeting will be...

  16. Teachers Working Cooperatively with Parents and Caregivers when Implementing LGBT Themes in the Elementary Classroom

    Science.gov (United States)

    Flores, Gabriel

    2014-01-01

    Many teachers are interested in having a more inclusive multicultural education that includes lesbian, gay, bisexual, and transgender (LGBT) themes and gay-themed children's literature; unfortunately, research has found that many teachers do not implement gay themes in their multicultural education curriculum because of fear of criticism from…

  17. Living in imaginary places: on the creation and consumption of themed residential architecture

    NARCIS (Netherlands)

    Meier, S.O.

    2013-01-01

    This study deals with theming of residential space and architecture. In theoretical terms, theming is defined as the application of a narrative to places and the built environment to make them more appealing than they otherwise would be. In a broader sense it is argued that theming is related to an

  18. Ehrlichia canis and Anaplasma platys in ticks of dogs in Cuiaba, Mato GrossoEhrlichia canis e Anaplasma platys em carrapatos de cães de Cuiabá, Mato Grosso

    Directory of Open Access Journals (Sweden)

    Valéria Dutra

    2012-06-01

    Full Text Available Diseases transmitted by arthropods such as Rhipicephalus sanguineus, are caused by a spectrum of pathogens. Among these are the canine monocytic ehrlichiosis and cyclical thrombocytopenia with a cosmopolitan distribution. Aiming to verify the presence of DNA of Anaplasma platys and Ehrlichia canis in ticks R. sanguineus collected in the period 2008 to 2009 of 380 infected dogs. Ticks, after maceration, were subjected to DNA extraction and then nested PCR was performed for amplification of A. platys and E. canis. Of these, 81 (29.7% amplified DNA from ehrlichiais agents, where 38 (17.9% amplified in E. canis and 32 (15.7% for A. platys. The observation of two pathogens, combined with worldwide distribution of the tick R. sanguineus, demonstrates the high risk of infection with these pathogens in dogs in the city of Cuiaba. Doenças transmitidas por artrópodes, como o Rhipicephalus sanguineus, são causadas por um espectro de patógenos. Dentre estas, estão a erliquiose monocítica canina e trombocitopenia cíclica com distribuição cosmopolita. Com o objetivo de verificar a presença de DNA de Anaplasma platys e Ehrlichia canis em carrapatos R. sanguineus coletados no período de 2008 a 2009 de 380 cães infestados. Os carrapatos, após a maceração, foram submetidos a extração de DNA e, em seguida, foi realizada a Nested PCR para a amplificação da espécie A. platys e E. canis. Destes, 81 (29.7% amplificaram o DNA dos agentes ehrlichiais, onde 38 (17.9% amplificaram para E. canis e 32 (15.7% para A. platys. A observação dos dois patógenos, combinado com distribuição mundial do carrapato R. sanguineus, demonstra o elevado risco de infecção por esses patógenos de cães na cidade de Cuiabá.

  19. Yellowstone wolf (Canis lupus) denisty predicted by elk (Cervus elaphus) biomass

    Science.gov (United States)

    Mech, L. David; Barber-Meyer, Shannon

    2015-01-01

    The Northern Range (NR) of Yellowstone National Park (YNP) hosts a higher prey biomass density in the form of elk (Cervus elaphus L., 1758) than any other system of gray wolves (Canis lupus L., 1758) and prey reported. Therefore, it is important to determine whether that wolf–prey system fits a long-standing model relating wolf density to prey biomass. Using data from 2005 to 2012 after elk population fluctuations dampened 10 years subsequent to wolf reintroduction, we found that NR prey biomass predicted wolf density. This finding and the trajectory of the regression extend the validity of the model to prey densities 19% higher than previous data and suggest that the model would apply to wolf–prey systems of even higher prey biomass.

  20. Immunological inquiry for the epidemiology of leptospirosis in Canis familiaris in Salvador, Bahia, Brazil.

    Science.gov (United States)

    Caldas, E M; Doria, J D; Martins, M A

    1977-12-01

    A total of 430 dogs were immunologically examined in Salvador, Bahia, Brazil, and 21.6% of them were positive. The animals were selected through an aleatory pattern, according to the division of the City in 18 residential zones a division which had been established by the vaccination campaign against canis hydrophobia. The serotypes icterohemorrhagiae and canicola were the most frequently registered. Between the sexes, the male presented the highest index of positivity, though the difference wasn't statistically significant. The period of age ranging from 12 to 48 months comprised 67.7% of the investigations. Mestizo dogs presented a higher frequency of positivity than any other race and the areas of Nordeste de Amaralina, Liberdade and Quintas showed the greatest percentages of positive dogs.

  1. Demodex canis regulates cholinergic system mediated immunosuppressive pathways in canine demodicosis.

    Science.gov (United States)

    Kumari, P; Nigam, R; Singh, A; Nakade, U P; Sharma, A; Garg, S K; Singh, S K

    2017-09-01

    Demodex canis infestation in dogs remains one of the main challenges in veterinary dermatology. The exact pathogenesis of canine demodicosis is unknown but an aberration in immune status is considered very significant. No studies have underpinned the nexus between induction of demodicosis and neural immunosuppressive pathways so far. We have evaluated the involvement of cholinergic pathways in association with cytokines regulation as an insight into the immuno-pathogenesis of canine demodicosis in the present study. Remarkable elevations in circulatory immunosuppressive cytokine interleukin-10 and cholinesterase activity were observed in dogs with demodicosis. Simultaneously, remarkable reduction in circulatory pro-inflammatory cytokine tumour necrosis factor-alpha level was observed in dogs with demodicosis. Findings of the present study evidently suggest that Demodex mites might be affecting the cholinergic pathways to induce immunosuppression in their host and then proliferate incessantly in skin microenvironment to cause demodicosis.

  2. Search behavior in various breeds of adult dogs (Canis familiaris): object permanence and olfactory cues.

    Science.gov (United States)

    Gagnon, S; Doré, F Y

    1992-03-01

    Human analog tests of object permanence were administered to various breeds of adult dogs (Canis familiaris). Experiment 1 showed that the performance of terriers, sporting, and working dogs did not differ. Dogs succeeded in solving invisible displacement problems, but performance was lower than in visible displacement tests. Familiarity with the task had some influence because invisible displacement tests were more successful if they were preceded by visible displacement tests. In Experiment 2, odor cues from the target object and the hiding screens were available or were masked. Results confirmed that success was lower in invisible than in visible displacement tests and that these problems were solved on the basis of representation of visual information rather than on the basis of olfactory cues or of local rule learning. Dogs are compared with other species that display Stage 6 object permanence.

  3. Zoonotic enteric parasites transmitted from dogs in Egypt with special concern to Toxocara canis infection

    Science.gov (United States)

    Awadallah, Maysa A. I.; Salem, Lobna M. A.

    2015-01-01

    Aim: This work aimed to study the role played by dogs in transmitting zoonotic enteric parasites to humans in Egypt and to analyze the risk factors associated with the occurrence of such infection in dogs. Serodiagnosis of anti-Toxocara immunoglobulin G (IgG) antibodies among human beings as well as analyzing risk factors predispose to Toxocara canis infection in human beings are another objectives of this study. Materials and Methods: From June to December 2013, a total of 130 fecal samples from 4 dog populations (Military, nomadic and domiciled dogs from rural and high standard districts) and 150 stool samples of 6 occupational groups were examined for the presence of enteric parasitic infection. Moreover, 150 serum samples were collected from humans from whom stool samples were collected and examined for the presence of anti-T. canis antibodies. Results: Enteric parasites were detected in 30% of fecal samples from 4 dog populations in Egypt. High infectivity had been reported in nomadic dogs (63.33%) (Crude odds ratios [COR]=67.36, 95% confidence interval [CI]=8.09-560.8, p0.05) did not seem to have a significant association among the examined dogs. Enteric parasitic infection was reported in 31/150 human stools (20.67%). Students were the most affected groups (37.14%), followed by nomadic people (24%), house wives (20%), house guarders and military workers (12%, each), and employees (10%). The identified parasites were Cryptosporidium spp. (9.33%), Ascaris lumbercoides (3.33%), Heterophyes spp. and Ancylostoma spp. (2.66%, each) and Paragonimus spp. and Hymenolepis nana (1.33%, each). Toxocara IgG antibodies were detected in 36/150 (24%) serum samples investigated. Toxocara IgG antibodies were more prevalent in males (26.66%) than females (20%). Seroprevalence was highest (17/35, 48.57%) in 7-15 years old (COR=6.93, 95% CI=1.75-27.43, p=0.006). Seroprevalence values for T. canis antibodies were higher in those; raising dogs (29.85%), eating raw vegetables (25

  4. Characteristics, immunological events, and diagnostics of Babesia spp. infection, with emphasis on Babesia canis

    Directory of Open Access Journals (Sweden)

    Kostro Krzysztof

    2015-12-01

    Full Text Available Vector-borne infection constitutes a significant health issue in dogs worldwide. Recent reports point to an increasing number of canine vector-borne disease cases in European countries, including Poland. Canine babesiosis caused by various Babesia species is a protozoal tick-borne disease with worldwide distribution and significant veterinary importance. The development and application of molecular methods have increased our knowledge about canine babesiosis, its prevalence, and clinical and pathological aspects of the infection. Parasitologists and veterinary surgeons need an accurate description of the species responsible for canine babesiosis to improve diagnostic and therapeutic methods, as well as predictions for the course of the disease. Therefore, we decided to summarise recent knowledge concerning Babesia species and B. canis.

  5. 557 GHz Observations of Water Vapor Outflow from VY Canis Majoris and W Hydrae

    Science.gov (United States)

    Harwit, Martin; Bergin, Edwin A.

    2002-02-01

    We report the first detection of thermal water vapor emission in the 557 GHz, 110-101 ground-state transition of ortho-H2O toward VY Canis Majoris. In observations obtained with the Submillimeter Wave Astronomy Satellite, we measured a flux of ~450 Jy, in a spectrally resolved line centered on a velocity vLSR=25 km s-1 with an FWHM of ~35 km s-1, somewhat dependent on the assumed line shape. We analyze the line shape in the context of three different radial outflow models for which we provide analytical expressions. We also detected a weaker 557 GHz emission line from W Hydrae. We find that these and other H2O emission-line strengths scale as suggested by Zubko and Elitzur.

  6. Unveiling the molecular bipolar outflow of the peculiar red supergiant VY Canis Majoris

    Science.gov (United States)

    Shinnaga, Hiroko; Claussen, Mark J.; Lim, Jeremy; Dinh-van-Trung; Tsuboi, Masato

    2003-04-01

    We carried out polarimetric spectral-line imaging of the molecular outflow of the peculiar red supergiant VY Canis Majoris in SiO J=1-0 line in the ground vibrational state, which contains highly linearly-polarized velocity components, using the Very Large Array. We succeeded in unveiling the highly linearly polarized bipolar outflow for the first time at subarcsecond spatial resolution. The results clearly show that the direction of linear polarization of the brightest maser components is parallel to the outflow axis. The results strongly suggest that the linear polarization of the SiO maser is closely related to the outflow phenomena of the star. Furthermore, the results indicate that the linear polarization observed in the optical and infrared also occur due to the outflow phenomena.

  7. Astrometry of the Red Supergiant Star VY Canis Majoris with VERA

    Science.gov (United States)

    Choi, Y. K.; Hirota, T.; Honma, M.; Kobayashi, H.

    2009-08-01

    We present observational results on the red supergiant VY Canis Majoris with VERA. We have observed 22 GHz H_2O masers and 43 GHz SiO masers (v=1 and 2 J=1-0) around VY CMa for 13 months. We successfully detected a parallax of 0.87 ± 0.08 mas, corresponding to 1.15 +0.10 -0.09 kpc of distance using H_2O masers. As results of phase--referencing analyses, we have measured absolute positions for both the H_2O masers and SiO masers. The proper motions of the H_2O masers show the tendency of expansion.

  8. The 3D morphology of the ejecta surrounding VY Canis Majoris

    Science.gov (United States)

    Jones, Terry Jay; Humphreys, Roberta M.; Helton, L. Andrew

    2007-03-01

    We use second epoch images taken with WFPC2 on the HST and imaging polarimetry taken with the HST/ACS/HRC to explore the three dimensional structure of the circumstellar dust distribution around the red supergiant VY Canis Majoris. Transverse motions, combined with radial velocities, provide a picture of the kinematics of the ejecta, including the total space motions. The fractional polarization and photometric colors provide an independent method of locating the physical position of the dust along the line-of-sight. Most of the individual arc-like features and clumps seen in the intensity image are also features in the fractional polarization map, and must be distinct geometric objects. The location of these features in the ejecta of VY CMa using kinematics and polarimetry agree well with each other, and strongly suggest they are the result of relatively massive ejections, probably associated with magnetic fields.

  9. Osteometrical and CT examination of the Japanese wolf [Canis hodophilax] skull

    International Nuclear Information System (INIS)

    Endo, H.; Obara, I.; Yoshida, T.; Kurohmaru, M.; Hayshi, Y.; Suzuki, N.

    1997-01-01

    The skulls of Japanese wolf (Canis hodophilax) were osteometrically examined and compared with those of Akita-Inu. The skull total length was not statistically different between two species. However, significant differences were demonstrated between two species in some ratios concerning the frontal bone. CT examination was carried out in the Japanese wolf skull. The data indicated that the frontal sinus is not be largely developed and compressed in the dorso-ventral direction in parasagittal area. The narrow frontal sinus fitted to external shape of the frontal bone. The cribriform plate had a well-developed complicated structure in a caudal part of the ethmoid bone. These data will be useful to examine the respiratory function and the olfactory sense in the Japanese wolf

  10. Treatment-resistant neuromyelitis optica spectrum disorders associated with Toxocara canis infection: A case report.

    Science.gov (United States)

    Kambe, Daisuke; Takeoka, Kayo; Ogawa, Kenta; Doi, Kosuke; Maruyama, Haruhiko; Yoshida, Ayako; Suenaga, Toshihiko; Kageyama, Takashi

    2017-04-01

    A 53-year-old woman was admitted to the department of neurology in Tenri Hospital because of progressive thoracic myelitis a month after she had eaten uncooked bovine liver. A previous episode of right optic neuritis and a positive test for serum anti-aquaporin-4 antibodies indicated a diagnosis of neuromyelitis optica spectrum disorders. Although the patient initially recovered with the reduction of anti-aquaporin-4 antibodies during treatment with intravenous methylprednisolone infusion and plasma exchange, her neurological symptoms deteriorated soon after the completion of plasma exchange. Western blotting analysis detected anti-Toxocara canis antibodies in the serum; thus, the patient underwent oral albendazole treatment. This resulted in the alleviation of her symptoms. We therefore consider that rigorous investigation should be encouraged to detect rare pathogens including parasites in cases of treatment-resistant neuromyelitis optica spectrum disorders. Copyright © 2017 Elsevier B.V. All rights reserved.

  11. Canis familiaris As a Model for Non-Invasive Comparative Neuroscience.

    Science.gov (United States)

    Bunford, Nóra; Andics, Attila; Kis, Anna; Miklósi, Ádám; Gácsi, Márta

    2017-07-01

    There is an ongoing need to improve animal models for investigating human behavior and its biological underpinnings. The domestic dog (Canis familiaris) is a promising model in cognitive neuroscience. However, before it can contribute to advances in this field in a comparative, reliable, and valid manner, several methodological issues warrant attention. We review recent non-invasive canine neuroscience studies, primarily focusing on (i) variability among dogs and between dogs and humans in cranial characteristics, and (ii) generalizability across dog and dog-human studies. We argue not for methodological uniformity but for functional comparability between methods, experimental designs, and neural responses. We conclude that the dog may become an innovative and unique model in comparative neuroscience, complementing more traditional models. Copyright © 2017 Elsevier Ltd. All rights reserved.

  12. Playing at bullying: The postmodern ethic of Bully (Canis Canem Edit

    Directory of Open Access Journals (Sweden)

    Clare Bradford

    2009-05-01

    Full Text Available This essay discusses Bully (Canis Canem Edit, considering the game’s antecedents (narratives involving young people in school settings and the features which set it apart from other teen texts. It discusses the controversy surrounding the game and comes to the conclusion that the principal reason for unease on the part of parents and educational authorities is that Bully’s postmodernist ethic evades the binaries of liberal humanism and calls into question the foundations on which conventional ethical systems are based. The paper considers several episodes from the game to flesh out its arguments about how the game manifests features of postmodernist textuality in its propensity for simultaneously deploying and interrogating references to historical and contemporary cultural practices.

  13. Gray Wolf (Canis lupus) dyad monthly association rates by demographic group.

    Science.gov (United States)

    Barber-Meyer, Shannon M.; Mech, L. David

    2015-01-01

    Preliminary data from GPS-collared wolves (Canis lupus) in the Superior National Forest of northeastern Minnesota indicated wolves had low association rates with packmates during summer. However, aerial-telemetry locations of very high frequency (VHF)-radioed wolves in this same area showed high associations among packmates during winter. We analyzed aerial-telemetry-location data from VHF-collared wolves in several packs (n=18 dyads) in this same area from 1994-2012 by month, and found lowest association rates occurred during June. While other studies have found low association among wolf packmates during summer, information on differences in association patterns depending on the wolf associates’ demographics is sparse. During May-July, association rates were greatest for breeding pairs, followed by sibling dyads, and lowest for parent– offspring dyads. Our findings improve our understanding of how individual wolf relationships affect monthly association rates. We highlight some important remaining questions regarding wolf packmate associations.

  14. A serosurvey of diseases of free-ranging gray wolves (Canis lupus) in Minnesota

    Science.gov (United States)

    Carstensen, Michelle; Giudice, John H.; Hildebrand, Erik C.; Dubey, J. P.; Erb, John; Stark, Dan; Hart, John; Barber-Meyer, Shannon M.; Mech, L. David; Windels, Steve K.; Edwards, Andrew J.

    2017-01-01

    We tested serum samples from 387 free-ranging wolves (Canis lupus) from 2007 to 2013 for exposure to eight canid pathogens to establish baseline data on disease prevalence and spatial distribution in Minnesota's wolf population. We found high exposure to canine adenoviruses 1 and 2 (88% adults, 45% pups), canine parvovirus (82% adults, 24% pups), and Lyme disease (76% adults, 39% pups). Sixty-six percent of adults and 36% of pups exhibited exposure to the protozoan parasite Neospora caninum. Exposure to arboviruses was confirmed, including West Nile virus (37% adults, 18% pups) and eastern equine encephalitis (3% adults). Exposure rates were lower for canine distemper (19% adults, 5% pups) and heartworm (7% adults, 3% pups). Significant spatial trends were observed in wolves exposed to canine parvovirus and Lyme disease. Serologic data do not confirm clinical disease, but better understanding of disease ecology of wolves can provide valuable insight into wildlife population dynamics and improve management of these species.

  15. Wolf, Canis lupus, visits to white-tailed deer, Odocoileus virginianus, summer ranges: Optimal foraging?

    Science.gov (United States)

    Demma, D.J.; Mech, L.D.

    2009-01-01

    We tested whether Wolf (Canis lupus) visits to individual female White-tailed Deer (Odocoileus virginianus) summer ranges during 2003 and 2004 in northeastern Minnesota were in accord with optimal-foraging theory. Using GPS collars with 10- to 30-minute location attempts on four Wolves and five female deer, plus eleven VHF-collared female deer in the Wolves' territory, provided new insights into the frequency of Wolf visits to summer ranges of female deer. Wolves made a mean 0.055 visits/day to summer ranges of deer three years and older, significantly more than their 0.032 mean visits/day to ranges of two-year-old deer, which generally produce fewer fawns, and most Wolf visits to ranges of older deer were much longer than those to ranges of younger deer. Because fawns comprise the major part of the Wolf's summer diet, this Wolf behavior accords with optimal-foraging theory.

  16. Helminthologic survey of the wolf (Canis lupus) in Estonia, with an emphasis on Echinococcus granulosus.

    Science.gov (United States)

    Moks, E; Jõgisalu, I; Saarma, U; Talvik, H; Järvis, T; Valdmann, H

    2006-04-01

    Carcasses of 26 wolves were collected during the 2000/2001 and 2003/2004 hunting seasons and examined for helminths. Thirteen helminth species were recorded: one trematode (Alaria alata), seven cestodes (Diphyllobothrium latum, Mesocestoides lineatus, Taenia hydatigena, Taenia multiceps, Taenia ovis, Taenia pisiformis, and Echinococcus granulosus), and five nematode species (Uncinaria stenocephala, Toxascaris leonina, Toxocara canis, Trichinella nativa, and Trichinella britovi). The most common species were A. alata and U. stenocephala. Mature Echinococcus granulosus was found and described for the first time in Estonia, and its identity verified using PCR-RFLP analysis. Sequencing a fragment of the mitochondrial DNA NADH dehydrogenase 1 (mtND1) gene showed that the E. granulosus strain from Estonia was identical to strain G10, recently characterized in reindeer and moose in Finland.

  17. Detection of Hepatozoon canis in stray dogs and cats in Bangkok, Thailand.

    Science.gov (United States)

    Jittapalapong, Sathaporn; Rungphisutthipongse, Opart; Maruyama, Soichi; Schaefer, John J; Stich, Roger W

    2006-10-01

    A rapidly increasing stray animal population in Bangkok has caused concern regarding transmission of vector-borne and zoonotic diseases. The purpose of this study was to determine if stray animals in Bangkok are a potential reservoir of Hepatozoon, a genus of tick-borne parasites that has received little attention in Thailand. Blood samples were collected from stray companion animals near monasteries in 42 Bangkok metropolitan districts. Both dogs and cats were sampled from 26 districts, dogs alone from 4 districts and cats alone from 12 districts. Samples were collected from a total of 308 dogs and 300 cats. Light microscopy and an 18 S rRNA gene-based PCR assay were used to test these samples for evidence of Hepatozoon infection. Gamonts were observed in blood smears for 2.6% of dogs and 0.7% of cats by microscopy. The PCR assay detected Hepatozoon in buffy coats from 11.4% of dogs and 32.3% of cats tested. The prevalence of infection was the same between male and female dogs or cats, and PCR-positive dogs and cats were found in 36.6% and 36.8% of the districts surveyed, respectively. There was an association between the percentages of PCR-positive dogs and cats in districts where both host species were sampled. Sequences of representative amplicons were closest to those reported for H. canis. These results represent the first molecular confirmation that H. canis is indigenous to Thailand. The unexpectedly high prevalence of Hepatozoon among stray cats indicates that their role in the epizootiology of hepatozoonosis should be investigated.

  18. Antigenisitas, Sensitivitas, dan Spesifisitas Protein Toxocara canis pada Pemeriksaan Antibodi Serum Mencit dengan Indirect-ELISA

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    Sri Subekti Bendryman

    2015-05-01

    Full Text Available The aim of this research were to determine antigenicity, sensitivity, and specificity of Toxocara canisprotein used as antigen in indirect-ELISA for the detection antibody against the worm in the infected hostin order to proper diagnose kit. The design used was true experimental, with Post-test Only ControlGroups Design. Mouse was immunized with various worm homogenates used to antigenicity, sensitivityand specificity tests of T. canis protein with indirect-ELISA technique. The independence variable werevarious immunogens (homogenates; the dependence variables were antigenicity, sensitivity and specificityvalues interpreted by optical density (OD value of mouse sera; and controlled variable were mouse strain,feed and retrieval time of sera. The result showed that OD values of mouse sera immunized with T. canisand T.cati homogenate were signicantly difference (p<0.01 as compared to those immunized withAncylostoma spp., Dipylidium caninum and control sera. Using the diagnosis based on the finding ofToxocara, the sensitivity of OD value by ELISA result from mouse sera immunized with Toxocara spp.homogenate were 100%. Using negative OD value by ELISA from mouse sera immunized with Ancylostomaspp. and D. caninum homogenate, the specificity of the test was 87.5%. In conclusion, protein of T.canishas the same antigenicity against anti-T. canis and anti-T. cati sera, but they had the lower antigenicityagainst anti-Ancylostoma spp. and anti-D.caninum sera. As the sensitivity value of 100% and specificityvalue of 87.5%, in detecting antibody against toxocariasis, the possibility of obtaining false positive was12.5%.

  19. Space Use and Habitat Selection by Resident and Transient Red Wolves (Canis rufus.

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    Joseph W Hinton

    Full Text Available Recovery of large carnivores remains a challenge because complex spatial dynamics that facilitate population persistence are poorly understood. In particular, recovery of the critically endangered red wolf (Canis rufus has been challenging because of its vulnerability to extinction via human-caused mortality and hybridization with coyotes (Canis latrans. Therefore, understanding red wolf space use and habitat selection is important to assist recovery because key aspects of wolf ecology such as interspecific competition, foraging, and habitat selection are well-known to influence population dynamics and persistence. During 2009-2011, we used global positioning system (GPS radio-telemetry to quantify space use and 3rd-order habitat selection for resident and transient red wolves on the Albemarle Peninsula of eastern North Carolina. The Albemarle Peninsula was a predominantly agricultural landscape in which red wolves maintained spatially stable home ranges that varied between 25 km2 and 190 km2. Conversely, transient red wolves did not maintain home ranges and traversed areas between 122 km2 and 681 km2. Space use by transient red wolves was not spatially stable and exhibited shifting patterns until residency was achieved by individual wolves. Habitat selection was similar between resident and transient red wolves in which agricultural habitats were selected over forested habitats. However, transients showed stronger selection for edges and roads than resident red wolves. Behaviors of transient wolves are rarely reported in studies of space use and habitat selection because of technological limitations to observed extensive space use and because they do not contribute reproductively to populations. Transients in our study comprised displaced red wolves and younger dispersers that competed for limited space and mating opportunities. Therefore, our results suggest that transiency is likely an important life-history strategy for red wolves that

  20. Space use and habitat selection by resident and transient red wolves (Canis rufus)

    Science.gov (United States)

    Hinton, Joseph W.; Proctor, Christine; Kelly, Marcella J.; van Manen, Frank T.; Vaughan, Michael R.; Chamberlain, Michael J.

    2016-01-01

    Recovery of large carnivores remains a challenge because complex spatial dynamics that facilitate population persistence are poorly understood. In particular, recovery of the critically endangered red wolf (Canis rufus) has been challenging because of its vulnerability to extinction via human-caused mortality and hybridization with coyotes (Canis latrans). Therefore, understanding red wolf space use and habitat selection is important to assist recovery because key aspects of wolf ecology such as interspecific competition, foraging, and habitat selection are well-known to influence population dynamics and persistence. During 2009–2011, we used global positioning system (GPS) radio-telemetry to quantify space use and 3rd-order habitat selection for resident and transient red wolves on the Albemarle Peninsula of eastern North Carolina. The Albemarle Peninsula was a predominantly agricultural landscape in which red wolves maintained spatially stable home ranges that varied between 25 km2 and 190 km2. Conversely, transient red wolves did not maintain home ranges and traversed areas between 122 km2 and 681 km2. Space use by transient red wolves was not spatially stable and exhibited shifting patterns until residency was achieved by individual wolves. Habitat selection was similar between resident and transient red wolves in which agricultural habitats were selected over forested habitats. However, transients showed stronger selection for edges and roads than resident red wolves. Behaviors of transient wolves are rarely reported in studies of space use and habitat selection because of technological limitations to observed extensive space use and because they do not contribute reproductively to populations. Transients in our study comprised displaced red wolves and younger dispersers that competed for limited space and mating opportunities. Therefore, our results suggest that transiency is likely an important life-history strategy for red wolves that facilitates

  1. Gene repertoire evolution of Streptococcus pyogenes inferred from phylogenomic analysis with Streptococcus canis and Streptococcus dysgalactiae.

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    Tristan Lefébure

    Full Text Available Streptococcus pyogenes, is an important human pathogen classified within the pyogenic group of streptococci, exclusively adapted to the human host. Our goal was to employ a comparative evolutionary approach to better understand the genomic events concomitant with S. pyogenes human adaptation. As part of ascertaining these events, we sequenced the genome of one of the potential sister species, the agricultural pathogen S. canis, and combined it in a comparative genomics reconciliation analysis with two other closely related species, Streptococcus dysgalactiae and Streptococcus equi, to determine the genes that were gained and lost during S. pyogenes evolution. Genome wide phylogenetic analyses involving 15 Streptococcus species provided convincing support for a clade of S. equi, S. pyogenes, S. dysgalactiae, and S. canis and suggested that the most likely S. pyogenes sister species was S. dysgalactiae. The reconciliation analysis identified 113 genes that were gained on the lineage leading to S. pyogenes. Almost half (46% of these gained genes were phage associated and 14 showed significant matches to experimentally verified bacteria virulence factors. Subsequent to the origin of S. pyogenes, over half of the phage associated genes were involved in 90 different LGT events, mostly involving different strains of S. pyogenes, but with a high proportion involving the horse specific pathogen S. equi subsp. equi, with the directionality almost exclusively (86% in the S. pyogenes to S. equi direction. Streptococcus agalactiae appears to have played an important role in the evolution of S. pyogenes with a high proportion of LGTs originating from this species. Overall the analysis suggests that S. pyogenes adaptation to the human host was achieved in part by (i the integration of new virulence factors (e.g. speB, and the sal locus and (ii the construction of new regulation networks (e.g. rgg, and to some extent speB.

  2. Hybridization among three native North American Canis species in a region of natural sympatry.

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    Frank Hailer

    2008-10-01

    Full Text Available Population densities of many species throughout the world are changing due to direct persecution as well as anthropogenic habitat modification. These changes may induce or increase the frequency of hybridization among taxa. If extensive, hybridization can threaten the genetic integrity or survival of endangered species. Three native species of the genus Canis, coyote (C. latrans, Mexican wolf (C. lupus baileyi and red wolf (C. rufus, were historically sympatric in Texas, United States. Human impacts caused the latter two to go extinct in the wild, although they survived in captive breeding programs. Morphological data demonstrate historic reproductive isolation between all three taxa. While the red wolf population was impacted by introgressive hybridization with coyotes as it went extinct in the wild, the impact of hybridization on the Texas populations of the other species is not clear.We surveyed variation at maternally and paternally inherited genetic markers (mitochondrial control region sequence and Y chromosome microsatellites in coyotes from Texas, Mexican wolves and red wolves from the captive breeding programs, and a reference population of coyotes from outside the historic red wolf range. Levels of variation and phylogenetic analyses suggest that hybridization has occasionally taken place between all three species, but that the impact on the coyote population is very small.Our results demonstrate that the factors driving introgressive hybridization in sympatric Texan Canis are multiple and complex. Hybridization is not solely determined by body size or sex, and density-dependent effects do not fully explain the observed pattern either. No evidence of hybridization was identified in the Mexican wolf captive breeding program, but introgression appears to have had a greater impact on the captive red wolves.

  3. Two randomized, controlled studies to assess the efficacy and safety of lotilaner (Credelio™ in preventing Dermacentor reticulatus transmission of Babesia canis to dogs

    Directory of Open Access Journals (Sweden)

    Daniela Cavalleri

    2017-11-01

    Full Text Available Abstract Background Dogs worldwide are at risk of Babesia spp. infections. Preventive efficacy of lotilaner tablets (Credelio™, Elanco against Babesia canis was evaluated in two studies. Methods Sixteen dogs in Study 1 and 12 dogs in Study 2, all seronegative and polymerase chain reaction (PCR negative for B. canis, were randomized to a sham-treated control group or a lotilaner (20–43 mg/kg treatment group, administered on Day 0 (Study 1: n = 8/group; Study 2: n = 6/group. Dogs were each infested with 50 Dermacentor reticulatus, a percentage of which (Study 1: 8.0–30.0%; Study 2: 12.2% were infected with B. canis, in Study 1 on Days 2, 7, 14, 21 and 28, and in Study 2 on Day 28. Ticks were removed and counted on Day 30 in Study 1, and Day 34 in Study 2. Blood was collected for Babesia detection via smear, PCR and immunofluorescence assay (IFA in Study 1 on Day 2, then approximately weekly through Day 56, and in Study 2 at weekly intervals between Days 28 to 49, and on Days 63 and 91. Additional samples were collected from dogs with body temperature > 39.4 °C (measured three times weekly, from Days 7 to 56 in Study 1 and from Days 35 to 56 in Study 2 and positive for B. canis on blood smear. Dogs with confirmed infections were rescue-treated, removed from the study and, in Study 1, replaced. Results Across both studies B. canis infection of ticks ranged between 8.0–30.0%. In Study 1, all control dogs were positive for B. canis on blood smear and PCR on Day 10 and IFA on Day 21; on Day 21 seven of eight replacement control dogs were B. canis-positive; no replacement dogs were B. canis-positive following tick removal on Day 30. In Study 2, all control dogs were B. canis-positive on Day 56. All lotilaner-treated dogs remained B. canis-negative at all assessments in both studies. Conclusion Lotilaner efficacy was 100% in preventing establishment of B. canis infection, despite post-treatment challenge with infected ticks on Days 2, 7

  4. Success stories and emerging themes in conservation physiology

    Science.gov (United States)

    Madliger, Christine L.; Cooke, Steven J.; Crespi, Erica J.; Funk, Jennifer L.; Hultine, Kevin R.; Hunt, Kathleen E.; Rohr, Jason R.; Sinclair, Brent J.; Suski, Cory D.; Willis, Craig K. R.; Love, Oliver P.

    2016-01-01

    The potential benefits of physiology for conservation are well established and include greater specificity of management techniques, determination of cause–effect relationships, increased sensitivity of health and disturbance monitoring and greater capacity for predicting future change. While descriptions of the specific avenues in which conservation and physiology can be integrated are readily available and important to the continuing expansion of the discipline of ‘conservation physiology’, to date there has been no assessment of how the field has specifically contributed to conservation success. However, the goal of conservation physiology is to foster conservation solutions and it is therefore important to assess whether physiological approaches contribute to downstream conservation outcomes and management decisions. Here, we present eight areas of conservation concern, ranging from chemical contamination to invasive species to ecotourism, where physiological approaches have led to beneficial changes in human behaviour, management or policy. We also discuss the shared characteristics of these successes, identifying emerging themes in the discipline. Specifically, we conclude that conservation physiology: (i) goes beyond documenting change to provide solutions; (ii) offers a diversity of physiological metrics beyond glucocorticoids (stress hormones); (iii) includes approaches that are transferable among species, locations and times; (iv) simultaneously allows for human use and benefits to wildlife; and (v) is characterized by successes that can be difficult to find in the primary literature. Overall, we submit that the field of conservation physiology has a strong foundation of achievements characterized by a diversity of conservation issues, taxa, physiological traits, ecosystem types and spatial scales. We hope that these concrete successes will encourage the continued evolution and use of physiological tools within conservation-based research and

  5. Professional development themes in strength and conditioning coaches.

    Science.gov (United States)

    Tod, David A; Bond, Kath A; Lavallee, David

    2012-03-01

    The purpose of this study was to explore professional development themes in experienced strength and conditioning coaches. Strength and conditioning coaches (N = 15, mean age = 34.3 years, SD = 5.2 years) with 11.4 (SD = 4.9) years experience working with elite, professional, or talented athletes were interviewed about their professional development. The interviews were transcribed verbatim and content analyzed. Over time, subjects' service-delivery practices became more flexible and client driven. Their role understanding also broadened to include various dimensions, such as the need to consider various stakeholders and the value of good relationships with athletes. The subjects shifted from relying on external justification for professional decision making to their experience-based knowledge. The subjects believed athlete work experience, interactions with senior strength and conditioning coaches and other colleagues, the professional literature, and nonprofessional experiences, such as their own athletic experience and sales or managerial training, were the primary influences on their professional development. Typically, the subjects experienced anxiety about their competence, both early in their careers and when working in new contexts or with new athlete groups, but over time, they developed increased confidence. In addition, the subjects experienced reduced narcissism over time about the control they had over athletes and their competitive results. The current results provide information about the characteristics of effective strength and conditioning coaches, the ways they develop their competencies to help athletes, and the emotions they experience throughout their careers. These results may help strength and conditioning practitioners in planning and optimizing their professional development and effectiveness with athletes.

  6. From gametogenesis and stem cells to cancer: common metabolic themes.

    Science.gov (United States)

    Pereira, Sandro L; Rodrigues, Ana Sofia; Sousa, Maria Inês; Correia, Marcelo; Perestrelo, Tânia; Ramalho-Santos, João

    2014-01-01

    Both pluripotent stem cells (PSCs) and cancer cells have been described as having similar metabolic pathways, most notably a penchant for favoring glycolysis even under aerobiosis, suggesting common themes that might be explored for both stem cell differentiation and anti-oncogenic purposes. A search of the scientific literature available in the PubMed/Medline was conducted for studies on metabolism and mitochondrial function related to gametogenesis, early development, stem cells and cancers in the reproductive system, notably breast, prostate, ovarian and testicular cancers. Both PSCs and some types of cancer cells, particularly reproductive cancers, were found to obtain energy mostly by glycolysis, often reducing mitochondrial activity and oxidative phosphorylation. This strategy links proliferating cells, allowing for the biosynthesis reactions necessary for cell division. Interventions that affect metabolic pathways, and force cells to change their preferences, can lead to shifts in cell status, increasing either pluripotency or differentiation of stem cells, and causing cancer cells to become more or less aggressive. Interestingly metabolic changes in many cases seemed to lead to cell transformation, not necessarily follow it, suggesting a direct role of metabolic choices in influencing the (epi)genetic program of different cell types. There are uncanny similarities between PSCs and cancer cells at the metabolic level. Furthermore, metabolism may also play a direct role in cell status and targeting metabolic pathways could therefore be a promising strategy for both the control of cancer cell proliferation and the regulation of stem cell physiology, in terms of manipulating stem cells toward relevant phenotypes that may be important for tissue engineering, or making cancer cells become less tumorigenic. © The Author 2014. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For

  7. Success stories and emerging themes in conservation physiology.

    Science.gov (United States)

    Madliger, Christine L; Cooke, Steven J; Crespi, Erica J; Funk, Jennifer L; Hultine, Kevin R; Hunt, Kathleen E; Rohr, Jason R; Sinclair, Brent J; Suski, Cory D; Willis, Craig K R; Love, Oliver P

    2016-01-01

    The potential benefits of physiology for conservation are well established and include greater specificity of management techniques, determination of cause-effect relationships, increased sensitivity of health and disturbance monitoring and greater capacity for predicting future change. While descriptions of the specific avenues in which conservation and physiology can be integrated are readily available and important to the continuing expansion of the discipline of 'conservation physiology', to date there has been no assessment of how the field has specifically contributed to conservation success. However, the goal of conservation physiology is to foster conservation solutions and it is therefore important to assess whether physiological approaches contribute to downstream conservation outcomes and management decisions. Here, we present eight areas of conservation concern, ranging from chemical contamination to invasive species to ecotourism, where physiological approaches have led to beneficial changes in human behaviour, management or policy. We also discuss the shared characteristics of these successes, identifying emerging themes in the discipline. Specifically, we conclude that conservation physiology: (i) goes beyond documenting change to provide solutions; (ii) offers a diversity of physiological metrics beyond glucocorticoids (stress hormones); (iii) includes approaches that are transferable among species, locations and times; (iv) simultaneously allows for human use and benefits to wildlife; and (v) is characterized by successes that can be difficult to find in the primary literature. Overall, we submit that the field of conservation physiology has a strong foundation of achievements characterized by a diversity of conservation issues, taxa, physiological traits, ecosystem types and spatial scales. We hope that these concrete successes will encourage the continued evolution and use of physiological tools within conservation-based research and management

  8. The role of oxytocin in the ability of domestic dogs (Canis familiaris) to use human social cues and bond with humans.

    OpenAIRE

    Oliva, Jessica Lee

    2017-01-01

    The domestic dog (Canis familiaris) demonstrates attachment/bonding behaviour towards humans, whilst wolves (Canis lupus) do not. Domestic dogs also use humans’ non-verbal social cues to solve problems better than wolves do, even wolves raised in the same manner as domestic dogs. The neuropeptide oxytocin has been implicated in mammalian bonding and non-verbal intelligence and therefore the oxytocinergic system may have evolved in the dog during domestication in such a manner as to enable the...

  9. Factores asociados a la infección por Ehrlichia canis en perros infestados con garrapatas en la ciudad de Huánuco, Perú

    Directory of Open Access Journals (Sweden)

    Edward Huerto-Medina

    Full Text Available El objetivo del estudio fue determinar la frecuencia y factores asociados a la infección por Ehrlichia canis en perros. Se recolectaron muestras de sangre de 150 perros infestados con garrapatas en 10 consultorios veterinarios de la ciudad de Huánuco en Perú, los perros fueron seleccionados al azar sin distinción de raza, edad ni sexo. Se detectó anticuerpos contra Ehrlichia canis mediante inmunoensayo cromatográfico. El 51,3% de perros estuvieron infectados por Ehrlichia canis. En el análisis multivariado se encontraron asociados a la presencia Ehrlichia canis, el mal estado de salud del perro (p=0,049, un promedio mayor de infestación por garrapatas (p=0,018, perros de edad adulta (p=0,038. La frecuencia de Ehrlichia canis en perros de esta ciudad es alta. Se recomienda el control de la garrapata marrón del perro (Rhipicephalus sanguineus vector de la Ehrlichia canis

  10. Investigations into the prevention of prenatal and lactogenic Toxocara canis infections in puppies by application of moxidectin to the pregnant dog.

    Science.gov (United States)

    Krämer, F; Hammerstein, R; Stoye, M; Epe, C

    2006-06-01

    Aim of the investigation was to examine whether two administrations of moxidectin to pregnant dogs could prevent pre-natal and lactogenic infections of puppies with reactivated Toxocara canis larvae. Four pregnant beagles, infected experimentally with 20 000 embryonated eggs of T. canis, were treated subcutaneously with 1 mg moxidectin per kg body weight on days 40 and 55 of pregnancy (5-13 days before parturition). One further dam and its puppies served as untreated control. Two applications of moxidectin completely prevented pre-natal and lactogenic infections in the puppies. Neither intestinal stages nor somatic larvae were found in the dams or their corresponding puppies. All puppies and dams of the treatment group remained coproscopically negative until 42 days after parturition. The administration of moxidectin did not show any side effects in the dams. None of the puppies of the treated dams showed any pathological abnormalities. In the untreated dam one adult and 26 somatic larvae of T. canis were detected at necropsy. All puppies of the untreated dam showed a patent T. canis infection from day 28 post-natum (p.n.); 296 pre-adult and adult stages of T. canis were spontaneously eliminated and 51 intestinal stages and five somatic larvae of T. canis were recovered at necropsy. In contrast to the puppies of the treated dams all negative control puppies showed blood eosinophilia after parturition and elevated liver enzyme levels.

  11. Persistence of specific antibody response in different experimental infections of mice with Toxocara canis larvae Persistência da resposta humoral em camundongos experimentalmente infectados com larvas de Toxocara canis

    Directory of Open Access Journals (Sweden)

    Pedro Paulo Chieffi

    1995-06-01

    Full Text Available Anti-Toxocara antibody production and persistence were studied in experimental infections of BALB/c mice, according to three different schedules: Group I (GI - 25 mice infected with 200 T. canis eggs in a single dose; Group II (GII 25 mice infected with 150 T. canis eggs given in three occasions, 50 in the 1st, 50 in the 5th and 50 in the 8th days; Group III (GIII - 25 mice also infected with 150 T. canis eggs, in three 50 eggs portions given in the 1st, 14th and 28th days. A 15 mice control group (GIV was maintained without infection. In the 30th, 50th, 60th, 75th, 105th and 180th post-infection days three mice of the GI, GII and GIII groups and two mice of the control group had been sacrificed and exsanguinated for sera obtention. In the 360th day the remainder mice of the four groups were, in the same way, killed and processed. The obtained sera were searched for the presence of anti-Toxocara antibodies by an ELISA technique, using T. canis larvae excretion-secretion antigen. In the GI and GII, but not in the GIII, anti-Toxocara antibodies had been found, at least, up to the 180th post-infection day. The GIII only showed anti-Toxocara antibodies, at significant level, in the 30th post-infection day.Estudou-se a cinética de anticorpos anti-Toxocara em camundongos BALB/c infectados experimentalmente segundo três esquemas: Grupo I (GI: 25 camundongos infectados com dose única de 200 ovos embrionados de T. canis; grupo II (GII: 25 camundongos infectados com 150 ovos embrionados de T. canis, divididos em três doses de 50 ovos, administrados no 1º, 5º e 8º dias; Grupo III (GIII: 25 camundongos infectados com 150 ovos embrionados de T. canis, administrados em três doses de 50 ovos no 1º, 14º e 28º dias. Um grupo de 15 camundongos foi mantido nas mesmas condições, porém sem infecção, constituindo o grupo controle (GIV. No 30º, 50º, 60º, 75º, 105º e 180º dias pós-infecção três camundongos dos grupos GI, GII e GIII e dois do

  12. Pesquisa de aglutininas anti Brucella canis em soros humanos na cidade de São Paulo, Brasil Research on agglutinins for Brucella canis in human sera in the city of S. Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Helena Matiko Akao Larsson

    1980-09-01

    Full Text Available De 330 soros humanos examinados pela prova de soroaglutinação lenta em tubos, 4(1,21% apresentaram aglutininas anti Brucella canis em diluição 1:100 (1 reagente com título 100, 2 reagentes com título 200 e 1 reagente com título 400.Of the 330 human sera tested by tube agglutination test, 4 (1.21% were positive for Brucella canis antibodies with tilers 1:100 or higher (1 reagent with titer of 1:100, 2 reagents with titer of 1:200, and 1 reagent with tiler of 1:400.

  13. The Balkan Theme in The Secret of Chimneys

    Directory of Open Access Journals (Sweden)

    Graham St. John Stott

    2016-06-01

    Full Text Available In The Secret of Chimneys (1925 Agatha Christie uses the all too familiar Balkan stereotypes of backwardness and brigandage, but not – as was usually the case at the time – as an Other to illustrate British virtue, but as a mirror to British vice. It is Britain, not the fictional Herzoslovakia, that is a nation of brigands. Herzoslovakia remains relatively unknown, as none of the novel’s scenes take place there, but it is described by disinterested observers as democratic and prosperous. In London, however, the Foreign Office plans to overthrow its government to secure oil rights promised by a royal heir-in-exile to a London-based financial consortium. Keywords: Christie, Balkans, Romania, oil, brigandsAgatha Christie’s The Secret of Chimneys (1925 has been faulted for being on the one hand a frothy mix of Anthony Hope and P. G. Wodehouse (Thompson 143 and on the other a mishmash of popular ethnic, national and regional stereotypes – including those of the Balkans (Todorova 122. It is, however, a far more subtle work than such accounts suggest. Though the influence of Hope and Wodehouse can certainly be seen in the novel’s story of princes in disguise (reminiscent of The Prisoner of Zenda and a country house setting that would have reminded readers of Blandings, its main plot addresses an important theme –and in exploring it Christie takes the Balkans very seriously. Oil has been found in the Republic of Herzoslovakia and the Foreign Office, represented by George Lomax, has secured the pledge of the exiled Prince Michael Obolovitch “to grant certain oil concessions” to a consortium led by Herman Isaacstein if the Obolovitchs are restored to power. In other words: to secure those concessions the British Government has committed itself to the overthrow of Herzoslovakia’s government. The Foreign Office’s interest in the Balkans might not have surprised Christie’s readers. The Anglo-Iranian Oil Company had held a monopoly on

  14. Delusional Themes Across Affective and Non-Affective Psychoses

    Directory of Open Access Journals (Sweden)

    Angelo Picardi

    2018-04-01

    Full Text Available The current debate about the diagnostic significance of delusion revolves around two positions. The neurocognitive position conceives delusion as a non-specific, though polymorphic, symptom. The psychopathological position views features of delusion such as content and structure as having meaningful connections with diagnostic entities. This study aims at contributing to this debate by examining the association between delusional themes and diagnosis in a sample of 830 adult psychotic patients. All diagnoses were made by experienced psychiatrists according to DSM-IV or ICD-10 criteria, and in 348 patients were established with the SCID-I. All patients were administered the Brief Psychiatric Rating Scale (BPRS. In each patient, the presence of somatic delusions and delusions of guilt, grandiosity, and persecution was determined by examining the scores on relevant BPRS items. Delusions of guilt were almost pathognomonic for a psychotic depressive condition (psychotic major depression 40%; psychotic bipolar depression 30%; depressed schizoaffective disorder 8%; bipolar and schizoaffective mixed states 6 and 7%, respectively. Only 1% of patients with schizophrenia and no patient with delusional disorder or bipolar or schizoaffective manic state showed such delusions. The difference between unipolar and bipolar depression and the other diagnostic groups was highly significant. Delusions of grandiosity characterized mostly patients with manic symptoms (bipolar mania 20%; bipolar mixed states 19%; manic schizoaffective disorder 10%. They were observed significantly more often in bipolar mania than in schizophrenia (7%. Persecutory delusions were broadly distributed across diagnostic categories. However, they were significantly more frequent among patients with schizophrenia and delusional disorder compared with depressed and manic patients. Somatic delusions were also observed in all diagnostic groups, with no group standing out as distinct from the

  15. Mathematics revealed

    CERN Document Server

    Berman, Elizabeth

    1979-01-01

    Mathematics Revealed focuses on the principles, processes, operations, and exercises in mathematics.The book first offers information on whole numbers, fractions, and decimals and percents. Discussions focus on measuring length, percent, decimals, numbers as products, addition and subtraction of fractions, mixed numbers and ratios, division of fractions, addition, subtraction, multiplication, and division. The text then examines positive and negative numbers and powers and computation. Topics include division and averages, multiplication, ratios, and measurements, scientific notation and estim

  16. Life-style themes of unwed pregnant adolescents who chose to keep their babies.

    Science.gov (United States)

    Jorgensen, J A; Newlon, B J

    1988-12-01

    The authors point out that the largest increase in birthrate is accounted for by girls under age 15; the rise in teenage baby keeping is also a major source of alarm in America. The subjects interviewed for this study were currently enrolled in a Teenage Parent Program for girls aged 14-18 in a large southwestern city. All participants in the study were Anglos from middle to lower-middle income families. Participants included 2 15-year-olds, 2 16-year-olds, 3 17-year-olds, and 3 18-year-olds. All were unwed and kept their babies after birth. Each subject participated in a tape-recorded interview which lasted from 30 minutes to 1 hour and included early recollections and birth order information. Transcripts were analyzed and interpreted by 3 expert Adlerian therapists. Examination of these transcripts revealed themes common to the group as a whole. These themes centered around the desire for a close, idealized relationship with someone, the goal of excitement, and the expectation of being confused, unknowing, or afraid. The group also demonstrated a lack of themes centering on their own anger or victimization. They did, however, perceive themselves as being isolated from their parents. Those subjects who shared the same birth order position tended to have specific traits in common. The youngest in terms of birth order tended to use their confusion to keep others involved with them. The only and 1st borough tended to use their confusion and fear to deflect the burden of responsibility which was a strong component of their life-style. Lack of self-esteem was 1 commonly held characteristic. If society wishes to change the current increase in teenage pregnancies, a greater understanding of the importance of belonging and self-worth is needed by the significant adults in young people's lives. Increased understanding could lead to changes within the family and the educational institution. Self-esteem in young people would be encouraged and a sense of belonging developed

  17. Tourism and Water: Themes of the Alpine Convention

    Science.gov (United States)

    Imhof, R.

    2012-04-01

    1) The contribution reflects the personal opinion of the author and does not necessarily reflect the point of view of the Permanent Secretariat. The Alpine Convention is a multilateral framework treaty signed in 1991 by the eight states of the Alpine bow as well as the European Community. Its main objectives are the sustainable development of the Alpine territory and the safeguarding of the interests of the people living within it, embracing the environmental, social and economic dimensions in the broadest sense. In order to achieve its objectives, over the years the Framework Convention has been equipped with a large number of thematic protocols, e.g. on tourism. The overall objective of the Protocol on Tourism, which first came into force in 2002, is to contribute to sustainable development in the Alpine region within the existing institutional framework, by encouraging environmentally-friendly tourism through specific measures and recommendations which take the interests of both the local population and tourists into account. The provisions of the Protocol on Tourism primarily concern tourism management and controlling tourist flows, structural developments such as ski lifts and ski slopes, accommodation and the balanced development of economically weak areas. Guidelines, development plans, sectoral plans have to be adopted at the appropriate territorial level in order to enable to assess the impact of tourism development on, inter alia, water. This extends also to ski slopes developments. For example the production of artificial snow production may be authorized only if the location's hydrological, climatic and ecological conditions allow. Water is listed among the twelve themes in relation to which the Contracting Parties are supposed to take measures and coordinate their policies (Article 2 of the Framework Convention). The Alpine Convention aims to preserve and re-establish healthy water systems, especially keeping waters clean and protecting the natural

  18. First evidence of Anaplasma platys and Hepatozoon canis co-infection in a dog from Romania--a case report.

    Science.gov (United States)

    Andersson, Martin; Turcitu, Mihai A; Stefanache, Mircea; Tamba, Paula; Barbuceanu, Florica; Chitimia, Lidia

    2013-06-01

    Anaplasma platys was first identified and described in North America as a Rickettsia-like, platelet-specific organism in dogs with infectious canine cyclic thrombocytopenia. In Europe, A. platys has so far mainly been described for some Mediterranean countries. Here, we describe a case of A. platys infection in a dog from Romania, confirmed by PCR. Additionally, the dog had a co-infection with Hepatozoon canis. To the best of our knowledge, this is the first case of A. platys infection in Romania and the first case of a co-infection with A. platys and H. canis altogether. Both pathogens should be considered as possible disease agents in dogs suffering from disease associated with tick bite in south-eastern Europe. Copyright © 2013 Elsevier GmbH. All rights reserved.

  19. First molecular characterization of canine hepatozoonosis in Argentina: evaluation of asymptomatic Hepatozoon canis infection in dogs from Buenos Aires.

    Science.gov (United States)

    Eiras, Diego Fernando; Basabe, Julia; Scodellaro, Carla F; Banach, Diana B; Matos, María L; Krimer, Alejandro; Baneth, Gad

    2007-11-10

    Canine hepatozoonosis is an expanding tick-borne disease in Argentina. Hepatozoonosis was studied during 1 year in six dogs from the same household in Buenos Aires. Blood parasitemia with Hepatozoon gamonts was found in five dogs and all six were positive by PCR for Hepatozoon sp. Although the levels of parasitemia fluctuated during the year, no clinical signs of disease were detected during the follow up period. Amplification and sequencing of a 650 bases fragment of the 18S rRNA gene from all six dogs yielded fragments that were 99% identical to H. canis. The results of the partial 18S rRNA genotyping with the sub-clinical course of infection and lack of severe hematological abnormalities are compatible with clinical and molecular descriptions of Hepatozoon canis infection from other areas of the world. This is the first molecular characterization of Hepatozoon from Argentina.

  20. Assessment of Heavy Metal Accumulation in the Golden Jackal (Canis aureus) as a Possible Bioindicator in an Agricultural Environment in Bulgaria.

    Science.gov (United States)

    Markov, Georgi; Kocheva, Maria; Gospodinova, Milena

    2016-04-01

    The aim of this study was to evaluate the residues of heavy metals as an indicator of environmental pollution in internal organs of golden jackal (Canis aureus) from an agricultural region in Bulgaria. It was demonstrated that the golden jackal has high potential for specific accumulation of heavy metals, thus implying that this species may serve as a biological indicator of their presence in the agricultural regions, which it inhabits. The concentrations of the targeted elements (mean [mg/kg of dried tissue] ± SD) were respectively: Cu-57.62 ± 10.76; Zn-141.45 ± 11.33; Ni-0.28 ± 0.19; Co-0.46 ± 0.30; Pb-6.88 ± 1.67 and Cd-0.58 ± 0.16 in liver and Cu-17.67 ± 5.01; Zn-58.28 ± 10.81; Ni-0.51 ± 0.4; Co-0.52 ± 0.29; Pb-4.03 ± 1.32 and Cd-1.41 ± 0.22 in kidney samples. The concentrations we found revealed the specific accumulation of these metals in golden jackal and provide values, within which negative effects on the advancement of its populations should not be expected.