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Sample records for caiman latirostris resulted

  1. Reactividad inmunoquímica de sueros anti- Caiman yacare y Caiman latirostris frente a sueros de diferentes especies

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    de Roodt, Adolfo Rafael

    2010-06-01

    reactivity was tested by double immunodiffusion and ELISA. The results showed high reactivity among the sera from crocodiles while the reactivity against sera from the other species of reptiles studied was lower. The reactivity among sera of both species of Caiman was higher with the anti- Caiman latirostris and anti-Caiman yacare sera when compared with the reactivity against serum of Alligator missisipiensis. In addition, a strong reactivity of both anti Caiman sera on serum from Gallus gallus was observed, indicating a high reactivity between achosauria sera.

  2. Immunotoxicity of commercial-mixed glyphosate in broad snouted caiman (Caiman latirostris).

    Science.gov (United States)

    Siroski, Pablo A; Poletta, Gisela L; Latorre, María A; Merchant, Mark E; Ortega, Hugo H; Mudry, Marta D

    2016-01-25

    The expansion and intensification of agriculture during the past 50 years is unprecedented, and thus environmental problems have been triggered at different scales. These transformations have caused the loss of habitat and biodiversity, and disruption of the structure and functioning of ecosystems. As a result of the expansion of the agricultural frontier in the recent past, many areas of the natural geographic distribution of the local wildlife, among them crocodilians and particularly the broad snouted caiman (Caiman latirostris), are being exposed to contaminants. The present study was designed to evaluate the effect of commercially-mixed glyphosate (RU) on some parameters of the immune system of C. latirostris. Two groups of caimans were exposed for two months to different concentrations of RU recommended for its application in the field, while one group was maintained as an unexposed control. The RU concentration was progressively decreased through the exposure period to simulate glyphosate degradation in water. After exposure, total and differential white blood cell (WBC), and complement system activity (CS) were determined. In addition, the animals were injected with a solution of lipopolysaccharide (LPS) from Escherichia coli to trigger an immune response and evaluate the parameters associated with it. The results showed that an effect of the herbicide on CS was observed, as animals exposed to RU showed a lower CS activity than animals from the negative control (NC) but not in total WBC. In the case of leukocyte population counts, differences were only found for heterophils and lymphocytes. PMID:26658029

  3. Reactividad inmunoquímica de sueros anti- Caiman yacare y Caiman latirostris frente a sueros de diferentes especies

    OpenAIRE

    de Roodt, Adolfo Rafael

    2010-01-01

    Se estudió la reactividad inmunoquímica entre los sueros de distintas especies de reptiles frente a sueros hiperinmunes experimentales anti-suero de Caiman yacare y anti-suero de Caiman latirostris. Los sueros que se probaron fueron los homólogos de Caiman yacare, Caiman latirostris y los heterólogos de Alligator missisipiensis, Tupinambis merinae, Tupinambis rufescens, Chelonoidis chilensis, Clelia rustica, Waglerophis merremii, Lystrophys dorbignyi, Phyton molurus, Boa constrictor occidenta...

  4. Irregularly calcified eggs and eggshells of Caiman latirostris (Alligatoridae: Crocodylia)

    Science.gov (United States)

    Fernández, Mariela Soledad; Simoncini, Melina Soledad; Dyke, Gareth

    2013-05-01

    We describe irregularly calcified egg and eggshell morphologies for the first time in nests of the broad-snouted caiman, Caiman latirostris. Research is based on detailed descriptions of 270 eggs from a total sample of 46,800 collected between 2005 and 2011 in Santa Fe Province, Argentina, and encompasses animals from both natural habitats and held in captivity. We discuss possible reasons for the occurrence of eggs with different mineralisation patterns in our extensive C. latirostris field sample and its conservation significance; the chemistry of egg laying in amniotes is sensitive to environmental contamination which, in turn, has biological implications. Based on our egg sample, we identify two caiman eggshell abnormalities: (1) regularly calcified eggs with either calcitic nodules or superficial wrinkles at one egg end and (2) irregularly calcified eggs with structural gaps that weaken the shell. Some recently laid clutches we examined included eggs with most of the shell broken and detached from the flexible membrane. Most type 1 regularly calcified eggs lost their initial calcified nodules during incubation, suggesting that these deposits do not affect embryo survival rates. In contrast, irregularly calcified caiman eggs have a mean hatching success rate of 8.9 % (range 0-38 %) across our sample compared to a mean normal success of 75 %. Most irregularly calcified caiman eggs probably die because of infections caused by fungi and bacteria in the organic nest material, although another possible explanation that merits further investigation could be an increase in permeability, leading to embryo dehydration.

  5. Reactividad inmunoquímica de sueros anti Caiman yacare y Caiman latirostris frente a sueros de diferentes especies

    OpenAIRE

    de Roodt, Adolfo Rafael

    2010-01-01

    Se estudió la reactividad inmunoquímica entre los sueros de distintas especies de reptiles frente a sueros hiperinmunes experimentales anti-suero de Caiman yacare y anti-suero de Caiman latirostris. Los sueros que se probaron fueron los homólogos de Caiman yacare, Caiman latirostris y los heterólogos de Alligator missisipiensis, Tupinambis merinae, Tupinambis rufescens, Chelonoidis chilensis, Clelia rustica, Waglerophis merremii, Lystrophys dorbignyi, Phyton molurus, Boa constrictor occidenta...

  6. Regression equations between body and head measurements in the broad-snouted caiman (Caiman latirostris

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    VERDADE L. M.

    2000-01-01

    Full Text Available In the present study, regression equations between body and head length measurements for the broad-snouted caiman (Caiman latirostris are presented. Age and sex are discussed as sources of variation for allometric models. Four body-length, fourteen head-length, and ten ratio variables were taken from wild and captive animals. With the exception of body mass, log-transformation did not improve the regression equations. Besides helping to estimate body-size from head dimensions, the regression equations stressed skull shape changes during the ontogenetic process. All age-dependent variables are also size-dependent (and consequently dependent on growth rate, which is possibly related to the difficulty in predicting age of crocodilians based on single variable growth curves. Sexual dimorphism was detected in the allometric growth of cranium but not in the mandible, which may be evolutionarily related to the visual recognition of gender when individuals exhibit only the top of their heads above the surface of the water, a usual crocodilian behavior.

  7. Organochlorine compound residues in the eggs of broad-snouted caimans (Caiman latirostris) and correlation with measures of reproductive performance.

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    Stoker, C; Repetti, M R; García, S R; Zayas, M A; Galoppo, G H; Beldoménico, H R; Luque, E H; Muñoz-de-Toro, M

    2011-06-01

    Organochlorine compounds (OCCs), like pesticides (OCPs) and polychlorinated biphenyls (PCBs), are persistent lipophilic chemicals classified as endocrine-disruptors. Caiman latirostris inhabits wetlands throughout north-eastern Argentina and may accumulate OCCs. The aims of this study were to determine OCC residues in the eggs of C. latirostris and to correlate OCC burden with clutch size, hatching success and hatchling survival as measures of reproductive performance. Fourteen caiman clutches were harvested from sites with different degrees of anthropogenic intervention on wetlands surrounding Paraná River tributaries. Two to four eggs by clutch were used to quantify OCCs. OCP residues were found in all clutches. The principal contributors to the OCPs burden were the DDT family (range BDL-153.0 ng g(-1) lipid) and oxychlordane (range BDL-34.3 ng g(-1) lipid). PCBs were present in 92.9% of the clutches (range BDL-136.6 ng g(-1) lipid). Both higher concentrations and higher diversity of pesticides, including endosulfan sulfate, were found in the nests harvested close to croplands. A negative correlation was found between clutch size and ∑OCCs (p=0.02, Pearson r=-0.53, r(2)=0.28), mainly due to the ∑OCPs (p=0.04, Pearson r=-0.54, r(2)=0.30). Since egg OCCs concentrations predict maternal burden, present findings suggest that higher OCCs exposure could lead to smaller clutches. Although, other factors like mother age could influence clutch size. Additionally, as caimans are a long-lived and non-migratory species, the maternal OCCs burden reflects the environmental status throughout their home range; thus, caiman eggs could be useful as a biomonitor of local contamination. PMID:21531435

  8. Geographic distribution and conservation status of Caiman latirostris (Crocodylia, Alligatoridae in Uruguay

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    Claudio Borteiro

    2006-12-01

    Full Text Available Populations of Caiman latirostris are known to occur in Uruguay but their geographic distribution remains uncertain. This work presents anupdate of the species distribution and conservation status in Uruguay. Surveys conducted by the authors confirmed the presence of this species in the previously known distribution range of northwestern Uruguay, where it seems to be widespread and relatively abundant in contrast to earlier reports. We report new localities for C. latirostris, most relevant being those of the Cebollatí and Tacuarí Rivers, and the Pelotas, India Muerta and San Miguel stream basins, which significantly expand its distribution through important wetlands in the eastern part of the country. The overall distribution is coincident with different landscape types, where lagoons, artificial impoundments, livestock waterholes, rivers, streams, creeks and marshes are inhabited by caiman. Illegal non-commercial hunting was detected all over the country.

  9. Histological and immunohistochemical study of the thyroid gland of the broad-snouted caiman (Caiman latirostris - doi: 10.4025/actascibiolsci.v35i4.18444

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    Clarice Machado-Santos

    2013-07-01

    Full Text Available The broad-snouted caiman, Caiman latirostris, is widely distributed in countries of South America. In Brazil it is considered an endangered species because of natural habitat destruction and illegal hunting.  In reptiles, the thyroid gland plays an integral part in ecdysis, reproduction, tail regeneration, growth, endocrine function and metabolism rate. The aim of the present study was to characterize the thyroid gland morphology of C. latirostris, based on histochemical and immunohistochemical techniques. The thyroid glands were fixed in Bouin's fluid and serial cross sections were stained with hematoxylin-eosin, Mallory’s trichrome, periodic acid-Schiff (PAS and Alcian blue (AB pH 1.5 and 2.5. The immunohistochemical technique for 5-HT-IR cells was used. The thyroid gland has a dense irregular connective tissue forms a capsule enveloping the gland. There are several follicular acini of varying size lined by simple cuboidal or columnar epithelium in the thyroid gland. The follicles are connected by interfollicular connective tissue which contains blood vessels. We observed the presence of lymph nodes around the entire gland. There was a positive PAS reaction and negative AB reaction in the colloid. 5-HT-IR cells were detected around the follicle cells. No striking morphological differences were observed between C. latirostris and other domesticated mammals.

  10. Phenotypic variability and heritability of the cephalic region of Caiman latirostris.

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    Imhoff, Carolina; Giri, Federico; Siroski, Pablo; Amavet, Patricia

    2016-03-01

    The study of the cephalic shape of crocodilian is relevant in the fields of ecology, systematics, evolution, and conservation. Therefore, the integration of geometric analysis within quantitative genetics allows the evaluation of the inheritable shape components. In this study, the dorsal cephalic region of 210 Caiman latirostris hatchlings was analyzed from seven populations in Santa Fe, Argentina, to detect intra-, and inter-population phenotypic variability, and to determine the heritability of biological shape and size, using newly available geometric morphometric tools. The principal component analysis showed two configurations of cephalic shape that could be related to sexual dimorphism. In the canonical variate analysis, Procrustes distances between groups indicated that there are differences in shape among populations. Furthermore, the method of partial least squares indicated a covariation between cephalic shape and environmental variables. Regarding to CS of the skull we found significant differences among populations, moreover the partial least squares was also significant. Estimates of the heritability of shape and size were high, indicating that the components of these features are susceptible to the selection. PMID:26682625

  11. Abundance and local range of broad-snouted caiman (Caiman latirostris, Alligatoridae in the northwest of Santa Catarina Island

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    Walfrido Moraes Tomás

    2008-12-01

    Full Text Available This is the first report on the distribution and relative abundance of the broad-snouted caiman on Santa Catarina Island. The study estimated the relative abundance of caiman along the rivers at Estação Ecológica de Carijós, in addition to evaluating the occurrence of this species in the entire area of the Ratones River plain on the northwestern portion of the island. The mean relative abundance obtained by nocturnal counts was 0.25 (±0.07 caiman/km surveyed. There was a weak correlation between the number of caimans and the air temperature. Based on interviews with the local community and nocturnal surveys of caimans in rivers and reservoirs surrounding the protected area, we concluded that the range occupied by caimans covered the entire area of the Ratones river plain, inhabiting natural habitats (rivers, mangroves, swamps as well as artificial habitats (reservoirs and water channels. Although this study provides basic information about the broad-snouted caiman population on this part of the island, it is aimed mainly at providing guidance for future research.

  12. The eggshell features and clutch viability of the broad-snouted caiman (Caiman latirostris) are associated with the egg burden of organochlorine compounds.

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    Stoker, C; Zayas, M A; Ferreira, M A; Durando, M; Galoppo, G H; Rodríguez, H A; Repetti, M R; Beldoménico, H R; Caldini, E G; Luque, E H; Muñoz-de-Toro, M

    2013-12-01

    Organochlorine compounds (OCCs) are toxic and have been identified as endocrine-disrupting chemicals (EDCs). The broad-snouted Caiman (Caiman latirostris) is an oviparous species widely distributed in South America with potential to accumulate OCCs. The eggshell is formed during passage of the eggs through the oviduct. Since the oviduct is a target of hormone actions, exposure to OCCs could modify eggshell quality, thus affecting clutch viability. Eight clutches were collected from wetlands of Parana River tributaries, in north-eastern Argentina. Two to four eggs per clutch were used to establish the burden of OCCs, eggshell thickness and eggshell porosity. The remaining eggs were incubated in controlled conditions. Ten days after hatching, hatchling survival was assessed. Organochlorine pesticide residues (OCPs) were found in all clutches, while polychlorinated biphenyls (PCBs) were present in all but one clutch. The principal contributors to the OCP burden were members of the DDT family and oxychlordane. Eggshell thickness was 400.9±6.0 μm and, unexpectedly, no association between eggshell thickness and the OCC burden was found. The number of pores in the outer surface was 25.3±4.3 pores/cm². A significant inverse correlation between porosity and OCC burden was found (Pearson r= -0.81, p= 0.01). Furthermore, a decrease in caiman survival with decreased pore density was observed (Pearson r= 0.73, p= 0.04). Our findings highlight another potential negative impact of current and past use of OCCs on wildlife species. PMID:24054891

  13. Cross-species microsatellite amplification in South American Caimans (Caiman spp and Paleosuchus palpebrosus

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    Rodrigo Barban Zucoloto

    2006-01-01

    Full Text Available Microsatellite DNA markers have been used to assess genetic diversity and to study ecological behavioral characteristics in animals. Although these markers are powerful tools, their development is labor intensive and costly. Thus, before new markers are developed it is important to prospect the use of markers from related species. In the present study we investigated the possibility of using microsatellite markers developed for Alligator mississipiensis and Caiman latirostris in South American crocodilians. Our results demonstrate the use of microsatellite markers for Paleosuchus palpebrosus, Caiman crocodilus and Caiman yacare.

  14. Teste de aceitação e composição centesimal de carne de jacaré-do-papo-amarelo (Caiman latirostris em conserva Acceptance test and percent composition of broad-snouted caiman (Caiman latirostris canned meat

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    Isabela Ciarlini de Azevedo

    2009-04-01

    jacaré-do-papo-amarelo em conserva é viável, permitindo o melhor aproveitamento da carne após o abate, com aumento do seu valor agregado e uma boa aceitação sensorial do produto.This research focused on the evaluation of three broad-snouted caiman (Caiman latirostris canned meat formulas: one in edible oil, another in salt with onions, and the third one in seasoned salt. Some cuts (six pairs of members, one tail, two ribs and two loins were separated after slaughter to produce the canned meat. Gas chromatographic analysis of the fatty acids in the non-processed meat was conducted before industrial processing. After the canning process, a commercial sterility test for low acidity food was conducted for the canned meat samples. Subsequently, the three formulations were tested for sensory acceptance by a 9-point hedonic scale with respect to their appearance and global impression. The sodium chloride content, pH and percent composition (moisture, fixed mineral residue, proteins and lipids contents of the canned meat samples were determined. The saturated, monounsaturated and polyunsaturated fatty acids values were, respectively, 28.5; 42.5 and 29.0% of the total fatty acids in the non-processed meat. The canned meat samples were released after verifying that there were no leaking or blown cans in the sterility test. The three samples were significantly different in respect to appearance. The results showed the following order, from the least to the most acceptable sample: salt with onions, seasoned salt and edible oil. As for the global impression, the formulation in edible oil was also the most acceptable. The sodium chloride content was in the range of 0.5 to 1.2%, where the highest value was found for the samples in salt. The canned meat samples had an average pH of 5.0, 76.0% moisture content and 1.3% of fixed mineral residue, a protein concentration of 12.4% and a total lipid content of 5.5%. The sample in edible oil showed a higher concentration of lipids (12

  15. Categorización del estado de conservación de los caimanes (yacarés de la República Argentina

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    Waller, Tomás

    2012-11-01

    Full Text Available Después de transcurridos más de 10 años desde la primera Lista Roja de la herpetofauna dela República Argentina realizada por la Asociación Herpetológica Argentina en el año 2000, se re-categorizaron las dos especies de caimanes presentes en el país (Caiman latirostris y C. yacare incorporando nueva información biológica, biogeográfica y ecológica y, correcciones metodológicas. Como resultado, ambas especies fueron categorizadas como No Amenazadas, en base a información actualizada sobre sus áreas de distribución y su abundancia. Los criterios aplicados para el desarrollo de los programas de manejo de ambas especies en Argentina han permitido ampliar el conocimiento de las mismas en una gran diversidad de aspectos. El aprovechamiento sostenible de los yacarés mediante la metodología de cría en granjas o "rancheo" ha demostrado ser de bajo impacto para las poblaciones silvestres y ha revalorizado los humedales que estos reptiles habitan. After more than a decade from the first Red List of the Herpetofauna of Argentina assessed in 2000, we reclassified the two species of argentine caimans, starting from actual information about their biology, biogeography and ecology and including methodological adjustments. As a result, both species Caiman latirostris and C. yacare were included in the Not Endangered category, based on new records about their geographic distribution and populations densities. The criteria applied to the development of management programs of crocodilians in Argentina has improved the knowledge of both species and made a great and wide contribution to several aspects of their biology. The sustainable use of both species of crocodilians has proved to have a minimum impact on wild populations and has put a new value on the wetlands inhabited by this reptiles.

  16. Vocal patterns of adult females and juveniles Caiman yacare (Crocodilia: Alligatoridae in Brazilian Pantanal wetland

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    Fernando L. Sicuro

    2013-09-01

    Full Text Available The Paraguayan caiman (Caiman yacare is the main Caimaninae species occurring in the Brazilian Pantanal Wetland. Despite the relative availability of works focused on biology and conservation of the Paraguayan caiman, almost nothing is known about its vocal structure and behavior. We recorded aggressive calls of adult caiman females guarding nests and, afterwards, the distress calls of the new born juvenile caimans in seasonally flooded areas of the Nhecolândia (Southern Pantanal. The results of both observations and sonographic analyses diverged from studies with other crocodilian species. Aggressive vocalization of adult females of the Paraguayan caiman was longer and more complex than the same vocalization of larger Alligatoridae species. Vocalizations of the young caimans presented interspecific differences with other crocodilian offsprings. Moreover, we found statistically significant intraspecific variation in the distress call structure among different pods, even separated by few kilometers. Differences in distress call structure were tested by Canonical Discriminant Analysis (CDA. We obtained the squared Mahalanobis distances between the acoustic multivariate spaces of each pod provided by the CDA and compared with the geographic distance between the bays of origin of each pod through Mantel Test. The geographic distance by itself did not explain the differences found in the structure of the vocalization of young caimans from different pods. The adult females of Paraguayan caiman positively responded to playbacks of calls from juvenile caimans from pods of other regions, as well as to rough imitations of distress call. Since the adult caimans showed protective responses to quite heterogeneous vocalizations of distress by juveniles, we hypothesized that the variation in the distress call pattern may be associated to a low specificity in sound recognition by adult caimans.

  17. Categorización del estado de conservación de los caimanes (yacarés) de la República Argentina

    OpenAIRE

    Waller, Tomás; Piña, Carlos I.; Prado, Walter S.

    2012-01-01

    Después de transcurridos más de 10 años desde la primera Lista Roja de la herpetofauna dela República Argentina realizada por la Asociación Herpetológica Argentina en el año 2000, se re-categorizaron las dos especies de caimanes presentes en el país (Caiman latirostris y C. yacare) incorporando nueva información biológica, biogeográfica y ecológica y, correcciones metodológicas. Como resultado, ambas especies fueron categorizadas como No Amenazadas, en base a información actualizada sobre sus...

  18. Baroreflex control of heart rate in the broad-nosed caiman Caiman latirostris is temperature dependent

    DEFF Research Database (Denmark)

    Hagensen, Mette K; Abe, Augusto S; Wang, Tobias

    2010-01-01

    It has been suggested that ectothermic vertebrates primarily control blood pressure to protect the pulmonary vasculature from oedema caused by high pressure, while endothermic vertebrates control blood pressure to maintain adequate oxygen delivery to the tissues. In the present study we have char...

  19. Field and experimental evidence of a new caiman trypanosome species closely phylogenetically related to fish trypanosomes and transmitted by leeches.

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    Fermino, Bruno R; Paiva, Fernando; Soares, Priscilla; Tavares, Luiz Eduardo R; Viola, Laerte B; Ferreira, Robson C; Botero-Arias, Robinson; de-Paula, Cátia D; Campaner, Marta; Takata, Carmen S A; Teixeira, Marta M G; Camargo, Erney P

    2015-12-01

    Trypanosoma terena and Trypanosoma ralphi are known species of the South American crocodilians Caiman crocodilus, Caiman yacare and Melanosuchus niger and are phylogenetically related to the tsetse-transmitted Trypanosoma grayi of the African Crocodylus niloticus. These trypanosomes form the Crocodilian clade of the terrestrial clade of the genus Trypanosoma. A PCR-survey for trypanosomes in caiman blood samples and in leeches taken from caimans revealed unknown trypanosome diversity and frequent mixed infections. Phylogenies based on SSU (small subunit) of rRNA and gGAPDH (glycosomal Glyceraldehyde Phosphate Dehydrogenase) gene sequences revealed a new trypanosome species clustering with T. terena and T. ralphi in the crocodilian clade and an additional new species nesting in the distant Aquatic clade of trypanosomes, which is herein named Trypanosoma clandestinus n. sp. This new species was found in Caiman yacare, Caiman crocodilus and M. niger from the Pantanal and Amazonian biomes in Brazil. Large numbers of dividing epimastigotes and unique thin and long trypomastigotes were found in the guts of leeches (Haementeria sp.) removed from the mouths of caimans. The trypanosomes recovered from the leeches had sequences identical to those of T. clandestinus of caiman blood samples. Experimental infestation of young caimans (Caiman yacare) with infected leeches resulted in long-lasting T. clandestinus infections that permitted us to delineate its life cycle. In contrast to T. terena, T. ralphi and T. grayi, which are detectable by hemoculturing, microscopy and standard PCR of caiman blood, T. clandestinus passes undetected by these methods due to very low parasitemia and could be detected solely by the more sensitive nested PCR method. T. clandestinus n. sp. is the first crocodilian trypanosome known to be transmitted by leeches and positioned in the aquatic clade closest to fish trypanosomes. Our data show that caimans can host trypanosomes of the aquatic or

  20. Field and experimental evidence of a new caiman trypanosome species closely phylogenetically related to fish trypanosomes and transmitted by leeches

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    Bruno R. Fermino

    2015-12-01

    Full Text Available Trypanosoma terena and Trypanosoma ralphi are known species of the South American crocodilians Caiman crocodilus, Caiman yacare and Melanosuchus niger and are phylogenetically related to the tsetse-transmitted Trypanosoma grayi of the African Crocodylus niloticus. These trypanosomes form the Crocodilian clade of the terrestrial clade of the genus Trypanosoma. A PCR-survey for trypanosomes in caiman blood samples and in leeches taken from caimans revealed unknown trypanosome diversity and frequent mixed infections. Phylogenies based on SSU (small subunit of rRNA and gGAPDH (glycosomal Glyceraldehyde Phosphate Dehydrogenase gene sequences revealed a new trypanosome species clustering with T. terena and T. ralphi in the crocodilian clade and an additional new species nesting in the distant Aquatic clade of trypanosomes, which is herein named Trypanosoma clandestinus n. sp. This new species was found in Caiman yacare, Caiman crocodilus and M. niger from the Pantanal and Amazonian biomes in Brazil. Large numbers of dividing epimastigotes and unique thin and long trypomastigotes were found in the guts of leeches (Haementeria sp. removed from the mouths of caimans. The trypanosomes recovered from the leeches had sequences identical to those of T. clandestinus of caiman blood samples. Experimental infestation of young caimans (Caiman yacare with infected leeches resulted in long-lasting T. clandestinus infections that permitted us to delineate its life cycle. In contrast to T. terena, T. ralphi and T. grayi, which are detectable by hemoculturing, microscopy and standard PCR of caiman blood, T. clandestinus passes undetected by these methods due to very low parasitemia and could be detected solely by the more sensitive nested PCR method. T. clandestinus n. sp. is the first crocodilian trypanosome known to be transmitted by leeches and positioned in the aquatic clade closest to fish trypanosomes. Our data show that caimans can host trypanosomes

  1. Geographical classification of wine and olive oil by means of classification and influence matrix analysis (CAIMAN).

    Science.gov (United States)

    Ballabio, Davide; Mauri, Andrea; Todeschini, Roberto; Buratti, Susanna

    2006-06-16

    Classification and influence matrix analysis (CAIMAN) is a new classification method, recently proposed and based on the influence matrix (also called leverage matrix). Depending on the purposes of the classification analysis, CAIMAN can be used in three outlines: (1) D-CAIMAN is a discriminant classification method, (2) M-CAIMAN is a class modelling method allowing a sample to be classified, not classified at all, or assigned to more than one class (confused) and (3) A-CAIMAN deals with the asymmetric case, where only a reference class needs to be modelled. In this work, the geographic classification of samples of wine and olive oil has been carried out by means of CAIMAN and its results compared with discriminant analysis, by focusing great attention on the model predictive capabilities. The geographic characterization has been carried out on three different datasets: extra virgin olive oils produced in a small area, with a "protected denomination of origin" label, wines with different denominations of origin, but produced in enclosed geographical areas, and olive oils belonging to different production areas. Final results seem to indicate that the application of CAIMAN to the geographical origin identification offers several advantages: first, it shows--on an average basis--good performances; second, it is able to deal in a simple way classification problems related to tipicity, authenticity, and uniqueness characterization, which are of increasing interest in food quality issues. PMID:17723406

  2. Electrophoretic proteinogram reference interval from Argentina Northeastern captive caimans (crocodylia: Alligatoridae Intervalo de referencia para el proteinograma electroforético de caimanes del nordeste argentino en cautiverio (Crocodylia: Alligatoridae

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    J.A. Coppo

    2006-12-01

    Full Text Available The purpose of the study was to establish the reference interval for serum electrophoretic proteinogram from captive Northeastern Argentinean caimans, as well as to detect physiological variations attributable to species, sex, age, feeding and year season. Samples from 223 healthy sub-adults, both sexes specimens of Caiman latirostris (n=109 and Caiman yacare (n=114, were obtained. Total protein (4.01±0.61 g/dl was determined by spectrophotometry. Values from albumin (0.96±0.20 g/dl and globulins alpha (0.74±0.16 g/dl, beta (0.87±0.18 g/dl and gamma (1.39±0.27 g/dl, were obtained by electrophoresis on cellulose acetate and densitometric valuation. Presence of pre-albumin on band comprised between 20-66 kDa, were detected by electrophoresis on polyacrilamide gel. Reptile albumin registered molecular weight from 69 kDa. Protein values were higher in males than in females, being significantly higher (pEl propósito del estudio fue establecer el intervalo de referencia para el proteinograma electroforético sérico de caimanes argentinos en cautiverio, así como detectar variaciones fisiológicas atribuibles a especie, sexo, edad, alimentación y estación del año. Se emplearon 223 ejemplares sanos, sub-adultos de ambos sexos, de las especies Caiman latirostris (n=109 y Caiman yacare (n=114. Las proteínas totales (4,01±0,61 g/dl fueron determinadas por espectrofotometría. Mediante electroforesis en acetato de celulosa y valoración densitométrica, se obtuvieron valores para albúminas (0,96±0,20 g/dl y globulinas alfa (0,74±0,16 g/dl, beta (0,87±0,18 g/dl y gamma (1,39±0,27 g/dl. Por electroforesis en gel de poliacrilamida se verificaron los pesos moleculares de pre-albúminas (20-66 kDa y albúminas (69 kDa. Los valores proteicos fueron mayores en machos que en hembras, significativamente para gamma globulinas (p<0,05. Todos los parámetros fueron más bajos en C. latirostris que en C. yacare. El crecimiento produjo aumentos

  3. Acoustic signals of baby black caimans.

    Science.gov (United States)

    Vergne, Amélie L; Aubin, Thierry; Taylor, Peter; Mathevon, Nicolas

    2011-12-01

    In spite of the importance of crocodilian vocalizations for the understanding of the evolution of sound communication in Archosauria and due to the small number of experimental investigations, information concerning the vocal world of crocodilians is limited. By studying black caimans Melanosuchus niger in their natural habitat, here we supply the experimental evidence that juvenile crocodilians can use a graded sound system in order to elicit adapted behavioral responses from their mother and siblings. By analyzing the acoustic structure of calls emitted in two different situations ('undisturbed context', during which spontaneous calls of juvenile caimans were recorded without perturbing the group, and a simulated 'predator attack', during which calls were recorded while shaking juveniles) and by testing their biological relevance through playback experiments, we reveal the existence of two functionally different types of juvenile calls that produce a different response from the mother and other siblings. Young black caimans can thus modulate the structure of their vocalizations along an acoustic continuum as a function of the emission context. Playback experiments show that both mother and juveniles discriminate between these 'distress' and 'contact' calls. Acoustic communication is thus an important component mediating relationships within family groups in caimans as it is in birds, their archosaurian relatives. Although probably limited, the vocal repertoire of young crocodilians is capable of transmitting the information necessary for allowing siblings and mother to modulate their behavior. PMID:21978842

  4. Radiographic-anatomical aspects and gastrointestinal transit time in the spectacled caiman Caiman crocodilus crocodilus (Linnaeus, 1758) (Crocodylia, Alligatoridae)

    OpenAIRE

    Heloisa Castro Pereira; Juliana Macedo Magnino Silva; Líria Queiroz Luz Hirano; Luiz Martins da Silva Junior; André Luiz Quagliatto Santos

    2014-01-01

    In Brazil, there is increasing interest in the establishment of captive breeding programs for caiman. However, there is a paucity of in-depth studies on the proper care of these reptiles in captivity, particularly regarding optimal food type and frequency of feeding. The purpose of this study was to determine radiographic-anatomical aspects of, and gastrointestinal transit time of Caiman crocodilus crocodilus using contrast radiography. Ten caiman were used in the study, five males and five f...

  5. [Growth of the Orinoco Caiman (Crocodylus intermedius, Crocodylia: Crocodylidae) under two captivity conditions].

    Science.gov (United States)

    Perez, Aldeima T T

    2008-03-01

    Growth of the Orinoco Caiman (Crocodylus intermedius, Crocodylia: Crocodylidae) under two captivity conditions. In order to determine the growth of Caiman of the Orinoco (Crocodylus intermedius) under two conditions of captivity, 40 specimens were raised during 11 months and 15 days in two circular tanks, with 28.3 m2 of surface area and a volume of 62.2 m3 in each tank. The tanks were built with concrete walls and guarded blocks covered internally with sheets of myrrhlike resin, and a roof of galvanized sheets. One tank was covered partially with the galvanized sheets (tank I), the other was totally covered (tank II). Twenty caimans were placed in each tank, and both groups were fed with 85% beef, 10% fresh fish, 5% hen eggs and a mixture of minerals and vitamins. The length and weight differed significantly between the groups (p < 0.001). Mean growth (103.0 +/- 6.81 cm) and weight (3 987 +/- 0.98 g) were higher in tank II, (tank I: 88.9 +/- 7.58 cm; 2 705 +/- 0.69 g). The greater growth in tank II reflects higher air and water temperatures. The survival rate was 97.5%. These results can be used for rearing caimans in captivity for conservation and commercial purposes. PMID:18624249

  6. Development of Hepatozoon caimani (Carini, 1909 Pessôa, De Biasi & De Souza, 1972 in the Caiman Caiman c. crocodilus, the frog Rana catesbeiana and the mosquito Culex fatigans

    Directory of Open Access Journals (Sweden)

    Ralph Lainson

    2003-01-01

    Full Text Available The sporogony of Hepatozoon caimani has been studied, by light microscopy, in the mosquito Culex fatigans fed on specimens of the caiman Caiman c. crocodilus showing gametocytes in their peripheral blood. Sporonts iniciate development in the space between the epithelium of the insect gut and the elastic membrane covering the haemocoele surface of the stomach. Sporulating oocysts are clustered on the gut, still invested by the gut surface membrane. Fully mature oocysts were first seen 21 days after the blood-meal. No sporogonic stages were found in some unidentified leeches fed on an infected caiman, up to 30 days following the blood-meal. When mosquitoes containing mature oocysts were fed to frogs (Leptodactylus fuscus and Rana catesbeiana, cysts containing cystozoites developed in the internal organs, principally the liver. Feeding these frogs to farm-bred caimans resulted in the appearance of gametocytes in their peripheral blood at some time between 59 and 79 days later, and the development of tissue cysts in the liver, spleen, lungs and kidneys. Transmission of the parasite was also obtained by feeding young caimans with infected mosquitoes and it is suggested that both methods occur in nature. The finding of similar cysts containing cystozoites in the semi-aquatic lizard Neusticurus bicarinatus, experimentally fed with infected C. fatigans, suggests that other secondary hosts may be involved.

  7. Trichinella papuae and Trichinella zimbabwensis induce infection in experimentally infected varans, caimans, pythons and turtles.

    Science.gov (United States)

    Pozio, E; Marucci, G; Casulli, A; Sacchi, L; Mukaratirwa, S; Foggin, C M; La Rosa, G

    2004-03-01

    The discovery of Trichinella zimbabwensis in farm crocodiles of Zimbabwe has opened up a new frontier in the epidemiology of the Trichinella genus. The objective of the present study was to investigate the infectivity of encapsulated species (T. spiralis, T. nativa, T. britovi, T. murrelli and T. nelsoni) and non-encapsulated species (T. pseudospiralis, T. papuae and T. zimbabwensis) in caimans (Caiman crocodilus), varans (Varanus exanthematicus), pythons (Python molurus bivittatus) and turtles (Pelomedusa subrufa) raised at their natural temperature range (26-32 degrees C). Mice and chickens were used as controls. At 6 days post-infection (p.i.), adult worms were detected in the small intestine of reptiles infected with T. papuae and T. zimbabwensis, of chickens infected with T. pseudospiralis and of mice infected with all encapsulated and non-encapsulated species. At 60 days p.i., T. papuae and T. zimbabwensis adult worms were collected from the intestine of varans and caimans and larvae from muscles of the four reptile species, T. pseudospiralis larvae from muscles of chickens, and larvae of all Trichinella species from mouse muscles. The highest reproductive capacity index of both T. papuae and T. zimbabwensis was observed in varans. The results show that T. papuae and T. zimbabwensis are able to complete their entire life-cycle in both poikilothermic and homoiothermic animals. PMID:15074882

  8. The mitochondrial genomes of the iguana (Iguana iguana) and the caiman (Caiman crocodylus): implications for amniote phylogeny

    OpenAIRE

    Janke, Axel; Erpenbeck, Dirk; Nilsson, Malin; Arnason, Ulfur

    2001-01-01

    The complete mitochondrial genomes of two reptiles, the common iguana (Iguana iguana) and the caiman (Caiman crocodylus), were sequenced in order to investigate phylogenetic questions of tetrapod evolution. The addition of the two species allows analysis of reptilian relationships using data sets other than those including only fast-evolving species. The crocodilian mitochondrial genomes seem to have evolved generally at a higher rate than those of other vertebrates. Phylogenetic analyses of ...

  9. Radiographic-anatomical aspects and gastrointestinal transit time in the spectacled caiman Caiman crocodilus crocodilus (Linnaeus, 1758 (Crocodylia, Alligatoridae

    Directory of Open Access Journals (Sweden)

    Heloisa Castro Pereira

    2014-09-01

    Full Text Available In Brazil, there is increasing interest in the establishment of captive breeding programs for caiman. However, there is a paucity of in-depth studies on the proper care of these reptiles in captivity, particularly regarding optimal food type and frequency of feeding. The purpose of this study was to determine radiographic-anatomical aspects of, and gastrointestinal transit time of Caiman crocodilus crocodilus using contrast radiography. Ten caiman were used in the study, five males and five females, the animals were physically restrained for administration of a radiographic contrast medium, consisting of 10 ml/kg barium sulfate and mineral oil suspension (70%: 30% respectively, via the orogastric tube. Following contrast medium administration, radiographs were taken via dorsoventral projection first at five minutes, then at 6, 24, 30, 48, 54, 72, 80, 96, 104, 120, 130, 144 and 150 hours. This technique allows visualization of contrast medium passage through the GI tract, which enabled determination of gastrointestinal transit time in the spectacled caiman. The average time for contrast medium passage through the digestive tract of this species was 117 ± 29.6 h for females and 86.4 ± 21.5 h for males.

  10. Evaluation of the infectivity of Trichinella spp. for reptiles (Caiman sclerops).

    Science.gov (United States)

    Kapel, C M; Webster, P; Bjørn, H; Murrell, K D; Nansen, P

    1998-12-01

    Experimental inoculation with nine well-characterised Trichinella isolates was performed on caimans (Caiman sclerops) to determine their infectivity for reptiles belonging to the family Crocodilidae. As controls, the same larval batches of Trichinella isolates were inoculated into mice and guinea pigs. It was suggested that Trichinella pseudospiralis was more likely to infect reptiles than encapsulating species, but whereas all Trichinella species established in mice and guinea pigs, the caimans remained negative. The finding that caimans could not be experimentally infected contrasts with a recent report on infections in farmed crocodiles (Crocodylus niloticus). PMID:9925275

  11. Field and experimental evidence of a new caiman trypanosome species closely phylogenetically related to fish trypanosomes and transmitted by leeches

    OpenAIRE

    Fermino, Bruno R.; Fernando Paiva; Priscilla Soares; Luiz Eduardo R. Tavares; Viola, Laerte B; Ferreira, Robson C.; Robinson Botero-Arias; de-Paula, Cátia D.; Marta Campaner; Takata, Carmen S. A.; Teixeira, Marta M. G.; Camargo, Erney P.

    2015-01-01

    Trypanosoma terena and Trypanosoma ralphi are known species of the South American crocodilians Caiman crocodilus, Caiman yacare and Melanosuchus niger and are phylogenetically related to the tsetse-transmitted Trypanosoma grayi of the African Crocodylus niloticus. These trypanosomes form the Crocodilian clade of the terrestrial clade of the genus Trypanosoma. A PCR-survey for trypanosomes in caiman blood samples and in leeches taken from caimans revealed unknown trypanosome diversity and freq...

  12. Salting kinetics and salt diffusivities in farmed Pantanal caiman muscle

    Directory of Open Access Journals (Sweden)

    Telis Vânia Regina Nicoletti

    2003-01-01

    Full Text Available The legal Pantanal caiman (Caiman crocodilus yacare farming, in Brazil, has been stimulated and among meat preservation techniques the salting process is a relatively simple and low-cost method. The objective of this work was to study the sodium chloride diffusion kinetics in farmed caiman muscle during salting. Limited volumes of brine were employed, with salting essays carried at 3, 4 and 5 brine/muscle ratios, at 15%, 20% and 25% w/w brine concentrations, and brine temperatures of 10, 15 and 20ºC. The analytical solution of second Fick's law considering one-dimensional diffusion through an infinite slab in contact with a well-stirred solution of limited volume was used to calculate effective salt diffusion coefficients and to predict the sodium chloride content in the fillets. A good agreement was obtained between the considered analytical model and experimental data. Salt diffusivities in fillets were found to be in the range of 0.47x10-10 to 9.62x10-10 m²/s.

  13. Evaluation of the infectivity of Trichinella spp. for reptiles (Caiman sclerops)

    DEFF Research Database (Denmark)

    Kapel, C.M.O.; Webster, P.; Bjørn, H.;

    1998-01-01

    Experimental inoculation with nine well-characterised Trichinella isolates was performed on caimans (Caiman sclerops) to determine their infectivity for reptiles belonging to the family Crocodilidae. As controls, the same larval batches of Trichinella isolates were inoculated into mice and guinea...... recent report on infections in farmed crocodiles (Crocodylus niloticus)....

  14. Evaluación del desarrollo de babas (Caiman crocodilus crocodilus alimentadas con una dieta medicada con antibiótico Evaluation of development of the spectacle caiman (Caiman crocodilus crocodilus fed with an antibiotic medicated diet

    Directory of Open Access Journals (Sweden)

    Gisela C García C

    2012-12-01

    Full Text Available La baba, Caiman crocodilus crocodilus, criada en cautiverio puede sufrir estrés, que unido a otros factores, promueve el retraso y mortalidad en la época crítica de crecimiento, por lo que algunos algunos autores reportan el uso de antibióticos para contrarrestar estos efectos. Se evaluó el crecimiento de babas en cautiverio alimentadas con una dieta medicada con antibiótico (virginiamicina y poblaciones con dieta no medicada, tomando como indicadores: medidas del largo total, grosor del cuello y grosor de la base de la cola y el peso de los animales. Se utilizaron 600 babas nacidas por incubación en el zoocriadero Kiubo (La Suareña, estado Aragua. Estos animales fueron medidos, pesados y evaluados clínicamente antes del inicio del ensayo y distribuidos al azar en un tanque tipo australiano (4 secciones. Las dietas fueron: Tratamiento 1: alimento comercial + proteína animal fresca, y Tratamiento 2: alimento comercial + antibiótico + proteína animal fresca. El análisis estadístico fue un diseño completamente aleatorizado, con evaluaciones en tres etapas o fases: Inicial, Intermedia y Final. En la fase inicial se encontraron diferencias significativas (P≤ 0,05 para todas las variables, siendo el tratamiento 1 el que resultó con mayores promedios. En la fase intermedia se observaron diferencias significativas (P≤0,05 para grosor de la base de la cola, largo total y peso; el grosor del cuello no presentó diferencia significativa. En la fase final se, detectaron diferencias significativas (P≤0,05 entre los tratamientos para la base de la cola y largo total; para el grosor del cuello y peso no hubo diferencias significativas. Se observó que el tratamiento 1 fue mejor que el tratamiento 2, para algunas variables, pero ambas dietas contribuyeron al incremento de la tasa de crecimiento, concluyéndose que no se recomienda el uso de antibióticos adicionados a la dieta, ya que incrementa los costos de producción y puede contribuir

  15. Echocardiographic evaluation of clinically healthy Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Gerlach, Trevor J; Estrada, Amara H; Sosa, Ivan S; Powell, Melanie; Maisenbacher, Herbert W; de Wit, Martine; Ball, Ray L; Walsh, Michael T

    2013-06-01

    Antemortem studies pertaining to the manatee cardiovascular and cardiopulmonary systems are limited despite reports of cardiac disease in postmortem specimens. The objective of this project was to develop a technique for echocardiography in the Florida manatee (Trichechus manatus latirostris). Because of their unique anatomy, a ventral approach was employed by use of an echocardiography table designed specifically for this study. Fourteen clinically healthy, free-ranging and captive Florida manatees underwent echocardiography between the fall of 2011 and winter of 2012. Eight females and six males of various age categories were included in the study. Clear visualization of all valves and chambers was accomplished, and length and width measurements of the left atrium, peak aortic flow velocity, and ejection fraction percentage were calculated in most animals. Abnormalities observed during the study included atrioventricular regurgitation and severe right-atrial enlargement. Based on the results of this study, echocardiography in the Florida manatee is possible, which has both clinical and research implications in larger epidemiologic studies evaluating diseases of the cardiopulmonary and cardiovascular systems. PMID:23805547

  16. Digenetic trematodes (Cryptogonimidae, Acanthostominae parasites of the Caiman, Caiman crocodilus yacare (Reptilia, Crocodylia from the Pantanal Mato-grossense, Brazil, with the description of a new species

    Directory of Open Access Journals (Sweden)

    João B. Catto

    1993-09-01

    Full Text Available Proctocaccum dorsale n. sp. is described and Caimanicola marajoara Freitas & Lent, 1938 is redescribed based on specimens collected from Caiman crocodilus yacare (Daudin from the Pantanal Mato-grossense, State of Mato Grosso do Sul, Brasil. This report extends south ward the known geographic distribution of C. marajoara. It is the first record of the genus Proctocaccum in South America, and in the caiman. Proctocaccum dorsale n. sp. differs from the other eight species in the genus by the dorsal location of the anal openings, instead of being lateral or in the posterior extremity of the body.

  17. Clinical biochemistry in healthy manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Harvey, John W; Harr, Kendal E; Murphy, David; Walsh, Michael T; Chittick, Elizabeth J; Bonde, Robert K; Pate, Melanie G; Deutsch, Charles J; Edwards, Holly H; Haubold, Elsa M

    2007-06-01

    Florida manatees (Trichechus manatus latirostris) are endangered aquatic mammals living in coastal and riverine waterways of Florida and adjacent states. Serum or plasma biochemical analyses are important tools in evaluating the health of free-ranging and captive manatees. The purpose of this study was to measure diagnostically important analytes in the plasma of healthy manatees and to determine whether there was significant variation with respect to location (free-ranging versus captive), age class (small calves, large calves, subadults, adults), and gender. No significant differences in plasma sodium, potassium, bilirubin, glucose, alanine aminotransferase, or creatine kinase were found among these classes of animals. Compared to free-ranging manatees, captive animals had significantly lower mean concentrations of plasma chloride, phosphate, magnesium, triglycerides, anion gap, and lactate. Captive manatees had significantly higher mean values of total CO2, calcium, urea, creatinine, alkaline phosphatase, gamma-glutamyltransferase, total protein, albumin, and albumin/globulin ratio than did free-ranging animals. Differences in the environments of these two groups, including diet, temperature, salinity, and stress, might account for some of these results. The higher plasma lactate and anion gap concentrations and lower total CO2 concentrations of free-ranging manatees were probably due to greater exertion during capture, but the lack of elevated plasma creatine kinase activity relative to captive animals indicates that there was no serious muscle injury associated with capture. Plasma phosphate decreased and total globulins increased with age. Plasma cholesterol and triglyceride concentrations were highest in small calves. Plasma aspartate aminotransferase was higher in large calves than in adults and subadults, and the albumin/ globulin ratio was higher in subadults than in adults. Plasma total CO2 was higher and chloride was slightly lower in females than in

  18. Clinical biochemistry in healthy manatees (Trichechus manatus latirostris)

    Science.gov (United States)

    Harvey, J.W.; Harr, K.E.; Murphy, D.; Walsh, M.T.; Chittick, E.J.; Bonde, R.K.; Pate, M.G.; Deutsch, C.J.; Edwards, H.H.; Haubold, E.M.

    2007-01-01

    Florida manatees (Trichechus manatus latirostris) are endangered aquatic mammals living in coastal and riverine waterways of Florida and adjacent states. Serum or plasma biochemical analyses are important tools in evaluating the health of free-ranging and captive manatees. The purpose of this study was to measure diagnostically important analytes in the plasma of healthy manatees and to determine whether there was significant variation with respect to location (free-ranging versus captive), age class (small calves, large calves, subadults, adults), and gender. No significant differences in plasma sodium, potassium, bilirubin, glucose, alanine aminotransferase, or creatine kinase were found among these classes of animals. Compared to free-ranging manatees, captive animals had significantly lower mean concentrations of plasma chloride, phosphate, magnesium, triglycerides, anion gap, and lactate. Captive manatees had significantly higher mean values of total CO2, calcium, urea, creatinine, alkaline phosphatase, gamma-glutamyltransferase, total protein, albumin, and albumin/globulin ratio than did free-ranging animals. Differences in the environments of these two groups, including diet, temperature, salinity, and stress, might account for some of these results. The higher plasma lactate and anion gap concentrations and lower total CO2 concentrations of free-ranging manatees were probably due to greater exertion during capture, but the lack of elevated plasma creatine kinase activity relative to captive animals indicates that there was no serious muscle injury associated with capture. Plasma phosphate decreased and total globulins increased with age. Plasma cholesterol and triglyceride concentrations were highest in small calves. Plasma aspartate aminotransferase was higher in large calves than in adults and subadults, and the albumin/ globulin ratio was higher in subadults than in adults. Plasma total CO2 was higher and chloride was slightly lower in females than in

  19. Underwater Visual Acuity of Florida Manatees (Trichechus manatus latirostris)

    OpenAIRE

    Bauer, Gordon B.; Colbert, Debborah E.; Gaspard III, Joseph C.; Littlefield, Brandie; Fellner, Wendi

    2003-01-01

    In Experiment 1 underwater visual acuity was assessed in two Florida manatees, Trichechus manatus Latirostris, using grating stimuli in three conditions: Vertical gratings presented in freshwater, vertical gratings in saltwater, and horizontal gratings in saltwater. All stimuli were tested in a free-swimming format from a minimum distance of one meter. Substantial differences were found between the two subjects. One subject’s minimum angles of resolution (MAR) were 56 min for vertical stimuli...

  20. Thermic Variation in Incubation and Development of Pantanal Caiman (Caiman crocodilus yacare (Daudin, 1802 Kept in Metabolic Box

    Directory of Open Access Journals (Sweden)

    Maristela Parra Miranda

    2002-09-01

    Full Text Available Thirty-two eggs of Pantanal caiman (Caiman crocodilus yacare (Daudin, 1802 were incubated at 30° C. After 20 days of incubation at 30° C, the remaining eggs were distributed in the following way: seven at 34° C, seven at 32° C, six at 30° C and six at 28° C. At 32° C and 34° C a 100% hatchability was obtained while at 30° C 83.3% and at 28° C 66.6%. After hatching, the animals were kept for 120 days at the same temperature of their final incubation. Weight (g control and morphometric (cm analysis were carried out. The statistic design was totally randomized and the data were treated by regression analysis showing a quadratic behavior ( pTrinta e dois ovos de Caiman crocodilus yacare foram incubados, inicialmente, à temperatura de 30° C. Durante a incubação foram retirados seis ovos para se conhecer o estágio embriológico e peso, além de breve descrição dos embriões. Após 20 dias de incubação a 30° C, os ovos foram assim distribuídos: sete em 34° C, sete em 32° C, seis em 30° C e seis em 28° C. Em 32 e 34° C obteve-se 100% de eclodibilidade, em 30° C - 83,3%, e a 28 ° C - 66,6 %. Após a eclosão os animais permaneceram durante 120 dias na mesma temperatura de incubação final. Foi realizado controle de peso (g e análise morfométrica (cm. O delineamento estatístico foi inteiramente casualizado, e os dados foram analisados por regressão, que mostraram um comportamento quadrático (p<0,05. Constatou-se que o peso, comprimento total, comprimento da cauda, comprimento focinho-cloaca, comprimento da cabeça, comprimento do olho, comprimento do focinho, largura do focinho, largura da cabeça, largura das narinas, distância entre membros tiveram maior desenvolvimento na faixa de 31,2 a 31,8° C e, a circunferência da barriga a 30,6° C. A redução de 30 para 28° C, na incubação artificial, desencadeou eclosão de animais prematuros. Portanto, a redução da temperatura de 30 para 28° C, durante a incuba

  1. Incubação artificial a 28ºC e crescimento inicial de jacaré do pantanal (Caiman crocodilus yacare em diferentes temperaturas Artificial incubation at 28ºC and initial growth at different temperatures of Pantanal Caiman (Caiman crocodilus yacare

    Directory of Open Access Journals (Sweden)

    Elias Nunes Martins

    1999-11-01

    Full Text Available Vinte ovos de jacaré do pantanal (Caiman crocodilus yacare foram submetidos à incubação artificial, à temperatura de 28ºC. Durante a incubação foram abertos três ovos para se verificar sua viabilidade. Obteve-se 94,11% de eclodibilidade, com a eclosão de 16 ovos. Os animais eclodidos foram, em seguida, colocados a duas temperaturas de crescimento: 28 e 32ºC e submetidos à análise morfométrica. Os dados obtidos foram analisados através de análises de variância. As características peso do animal e largura da cabeça não apresentaram diferenças (P > 0,05 entre os tratamentos. Circunferência da barriga e largura das narinas tiveram melhores (P Twenty Pantanal Caiman (Caiman crocodilus yacare eggs were artificially incubated at 28°C. During the incubation, three eggs were opened in order to check their viability. 94.11% of hatchability was detected, with the hatching of 16 eggs. The hatched animals were kept under two different temperatures during growth (28ºC and 32°C, and submitted to morphometrical analysis. The collected data were analyzed according to the analysis of variance. The characteristics of the weight of the animals and the width of the head did not present significant differences (P > 0.05 between the treatments. The circumference of the belly and width of snout at nostrils were the ones that had the best (P < 0.05 results at 28°C. The other characteristics as total length, tail length ,snout-vent length ,head length, eye length, snout length, width of snout at mid-point and distance between limbs showed better results at 32°C. It may be concluded that temperature variation did not influence the gain of weight, but the temperature of 32°C was the best for the general development of the animals.

  2. Several techniques for the preparation of flour from carcasses of the Pantanal alligator (Caiman crocodilus yacare

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    Vitória Regina Takeuchi FERNANDES

    2015-09-01

    Full Text Available AbstractFlour prepared via current assay methodologies from the carcasses of the Pantanal alligator (Caiman crocodilus yacare was analyzed for its chemical composition, minerals, fatty acids, and sensorial profile. Carcasses of the Pantanal alligator, originating from the Coocrijapan scientific zoo, Cáceres MT Brazil, were utilized. The carcasses were cooked for 60 minutes in a pressure cooker with water containing 2% salt and 5% chimichurri. The cooked carcasses were then ground and the mass was used for the manufacture of flour via three techniques: non-smoked, hot-smoked, and liquid-smoked. After each technique, the carcasses were dehydrated at 60ºC for 3h and were ground. Alligator flour was then produced. The moisture of liquid-smoked flour (10.97% was higher than that of non-smoked flour (3.78% and hot-smoked flour (4.43%. The flours provided high protein (57.11% - 58.27% and ash (23.45 – 26.42% rates, and were predominantly calcium (6.77% - 7.69%, phosphorus (3.67% - 4.05%, and iron (73.13 – 273.73 ppm/100 mg. Smoked-flour had a better acceptance rate by tasters when compared to non-smoked flour. Results show that flours produced from alligator carcasses had high protein, ash, and mineral rates and a reasonable acceptability by most tasters.

  3. Crocodylian – chelonian carnivory: bitetraces of Dwarf Caiman, Paleosuchus palpebrosus in Red-eared slider, Trachemys scripta carapaces

    DEFF Research Database (Denmark)

    Milàn, Jesper; Kofoed, Jens; Bromley, Richard Granville

    2010-01-01

    Predatory acts of the Recent Dwarf Caiman, Paleosuchus palpebrosus, preying on Red-eared Sliders, Trachemys scripta, are investigated with regard to bite traces left in the turtle shells and the technique applied by the caiman to crack open the carapace of the turtle. The caiman manipulated the t...... rows; elongated scratch traces from the teeth scraping along the carapaces; and large crushed areas on the plastrons and carapaces from repeated bites applied to the same area. These are all traces that would be recognizable in fossil turtle material....

  4. Medio interno en ejemplares juveniles de Caiman latirostris y Caiman yacare de Argentina.Variaciones fisiológicas según especie, sexo, peso, tamaño y estación del año

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    Noelia Nazaret Barboza

    2012-03-01

    Full Text Available ResumenLos fluidos del medio interno, principalmente la sangre, son el reflejo del estado metabólico-nutricional del organismo.AbstractInternal environment fluids, mainly the blood, are the reflex of the metabolic-nutritional state of the organism.

  5. Mycobacteriosis in two captive Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Sato, Tsuneo; Shibuya, Hisashi; Ohba, Shigeo; Nojiri, Toshio; Shirai, Wataru

    2003-06-01

    Two male Florida manatees (Trichechus manatus latirostris) died at the marine aquarium in Inagi City, Tokyo, Japan. Acid-fast bacteria were demonstrated in tuberculoid nodules in the lungs from both manatees. Mycobacterium marinum and M. fortuitum were isolated from one manatee; M. marinum and M. kansasii were cultured from the second animal. This report confirms the pathogenicity and potentially fatal outcome of mycobacterial infection in manatees. In addition, the pathologic response to infection with these mycobacteria in manatees is similar to that associated with Mycobacterium spp. in other animals. PMID:12885137

  6. Proterodiplostome Parasites (Digenea, Proterodiplostomidae of the Caiman, Caiman crocodilus yacare (Reptilia, Crocodylia in the Pantanal mato-Grossense, Brazil, with the description of two new species

    Directory of Open Access Journals (Sweden)

    João B. Catto

    1994-12-01

    Full Text Available Two new species are described from the caiman. Caiman crocodilus yacare. Proterodiplostomum breve n. sp. differs from all other species in the genus by the following chacacteristics: (1 the paraprostate gland is shorter and club-shaped; (2 the genital cone is, in average, eight times longer than that of P. medusae; (3 the genital atrium is larger and without pseudosuckers; (4 the oral sucker and pharynx are longer; and (5 there are larger numbers of papillae surrounding the tribocytic organ (40 against 20 in P. longum, 16 in p. tumidilum, 8 in P. ophidum, and 16-18 in P. medusae. Proterodiplostomum globulare n. sp. differs from all the other species in the fenus by the following characteristics: (1 from P. tumidilum, P. lomgum, P. medusae, and P. breve n. sp. for the absense of pseudosuckers or muscular bunches in the inferior wall of the genital atrium; (2 the shape of the paraprostate gland, which is globular and not cylindrical as in P. longum, P. tumidilum, P. medusae, and P. ophidum; (3 the size of the tribocytic organ 201-407 long, 183-495 wide, while is 138-270 long, 102-292 wide in P. medusae, and 138-270 long, 255 wide in P. ophidum; (4 the number of papillae in the tribocytic organ (18-20 in P. globulare and 16-18 in P. medusae, and 8 in P. ophidum. Specimens belonging to six other species of proterodiplostomes are recorded for the first time infecting the caiman, C. c. yacare in the Pantanal Mato-grossense, Brazil, namely: Proterodiplostomum medusae, P. tumidilum, Cystodiplostomum hollyi, Prolecithodiplostomum constrictum, Paradiplostomum abbreviatum, and Herpetodiplostomum caimancola.

  7. Observations on the thermal selection of the pantanal caiman (Caiman crocodilus yacare hatchlings (Crocodylia: Alligatoridae Observações sobre a preferência térmica de filhotes recém-eclodidos do jacaré-do-Pantanal (Caiman crocodilus yacare; Crocodylia: Alligatoridae

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    M. S. PINHEIRO

    2001-05-01

    hottest water (CxA was more frequented. In the phase 3, the difference between higher and smaller frequency straiten to 20.7%, in relation to almost 46.5% in phases 1 and 2, indicating that water temperatures between 29.5 and 35°C resulted in body temperatures more next to the comfort zone, in the experimental conditions.Três opções de temperatura da água, em um gradiente térmico que variou de 22 a 35°C, foram oferecidas a filhotes recém-eclodidos do jacaré-do-Pantanal (Caiman crocodilus yacare. Os animais, provenientes de dois ninhos, foram submetidos às temperaturas durante 19 dias (Ninhada 1 - 20 jacarés capturados no campo, horas após a eclosão, correspondendo aos períodos de observação 1 a 7, e 13 dias (Ninhada 2 - 21 animais obtidos por incubação artificial referentes ao oitavo período de observação. Os jacarés permaneceram em jejum durante o período experimental. Os filhotes foram alocados em um recinto contendo três caixas de isopor (120 L dispostas lado a lado, cercadas com tela de viveiro e completadas com água até o topo. Desse modo, os animais tinham trânsito livre entre as caixas, cujas temperaturas foram trocadas ao término de cada período de observação para evitar efeito de posição. A temperatura do ar foi mantida em torno de 22°C por meio de um condicionador de ar e a da água foi controlada por termostatos. O ensaio foi dividido em três fases determinadas pela eliminação da temperatura menos freqüentada e sua substituição por uma outra temperatura. Em uma primeira fase do experimento, que compreendeu os períodos de observação 1, 2 e 3, os termostatos foram regulados para 22°C (CaixaD, 26°C (CxC e 32°C (CxA. Na Fase 2, para 26°C, 29,5°C e 32°C (CxB, englobando os períodos 4, 5 e 6. Na terceira fase, que incluiu os períodos de observação 7 e 8, os termostatos foram ajustados para 29,5°C, 32°C e 35°C (CxE. O número de jacarés em cada caixa foi registrado duas a três vezes ao dia (8 h, 14 h e 17 h

  8. Aspectos reproductivos de la babilla Caiman crocodilus fuscus (Cope 1868, en condiciones de cautiverio

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    González Acosta Julio A.

    1996-06-01

    Full Text Available Observations were made on reproduction parameters of Caiman crocodilus tuscus in confimenet in the farm Saurus Ltd. during two periods of nesting and laying ( years 1992 - 1993 .Se realizaron observaciones sobre parámetros reproductivos en Caimsn crocodilus tuscus mantenidos en cautividad en el zoocriadero Saurus Ltda, durante dos épocas de anidación y postura (años 1992 - 1993.

  9. Low temperatures reduce skin healing in the Jacaré do Pantanal (Caiman yacare, Daudin 1802

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    Leandro Nogueira Pressinotti

    2013-09-01

    Studies of skin wound healing in crocodilians are necessary given the frequent occurrence of cannibalism in intensive farming systems. Air temperature affects tissue recovery because crocodilians are ectothermic. Therefore, the kinetics of skin wound healing in Caiman yacare were examined at temperatures of 33°C and 23°C. Sixteen caiman were selected and divided into two groups of eight maintained at 23°C or 33°C. The studied individuals' scars were photographed after 1, 2, 3, 7, 15 and 30 days of the experimental conditions, and samples were collected for histological processing after 3, 7, 15 and 30 days. Macroscopically, the blood clot (heterophilic granuloma noticeably remained in place covering the wound longer for the caiman kept at 23°C. Microscopically, the temperature of 23°C slowed epidermal migration and skin repair. Comparatively, new blood vessels, labeled using von Willebrand factor (vWF antibody staining, were more frequently found in the scars of the 33°C group. The collagen fibers in the dermis were denser in the 33°C treatment. Considering the delayed healing at 23°C, producers are recommended to keep wounded animals at 33°C, especially when tanks are cold, to enable rapid wound closure and better repair of collagen fibers because such lesions tend to compromise the use of their skin as leather.

  10. Two new species of Pseudotelorchis (Digenea, Telorchiidae, parasites of the Caiman, Caiman crocodilus yacare (Reptilia, Crocodylia from the Pantanal Mato-Grossense, Brazil

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    Joäo B. Catto

    1993-12-01

    Full Text Available Pseudotelorchis caimanis n. sp. and P. yacarei n. sp. are described based on specimens collected from Caiman crocodilus yacare (Daudin in the Pantanal Mato-grossense, Brazil. This is the first record of any species of Telorchiidae Stunkard, 1924, parasitizing crocodilians. Pseudotelorchis caimanis n. sp. differs from P. comapactus, the only species described in the genus with seminal receptacle, testes in tandem, and genital pore lateral to acetabulum. Pseudotelorchis yacarei n. sp. differs from the two other species for its body shape, for infecting the intestine instead of the uterus, by having regularly disposed instead of irregulary disposed uterine loops, and by having the vitelline glands disposed in longitudinal lateral lines instead of in lateral bunches.

  11. Viral papillomatosis in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Bossart, Gregory D; Ewing, Ruth Y; Lowe, Mark; Sweat, Mark; Decker, Susan J; Walsh, Catherine J; Ghim, Shin-je; Jenson, A Bennett

    2002-02-01

    The Florida manatee (Trichechus manatus latirostris) is one of the most endangered marine mammals in American coastal waters. Naturally resistant to infectious disease, the manatee immune system appears highly developed to protect it against the harsh marine environment and the effects of human-related injury. In 1997, seven captive Florida manatees developed multiple, cutaneous, pedunculated papillomas over a period of 6 months. Approximately 3 years later, four of the seven manatees developed multiple, cutaneous, sessile papillomas topically and clinically distinct from the initial lesions, some of which are still present. Histologic, ultrastructural, and immunohistochemical features indicated that the two distinct phenotypic lesions were caused by papillomaviruses (PVs). Preliminary immunologic data correlated with daily clinical observations suggested that the manatees were immunologically suppressed and that the papillomas were caused by activation of latent PV infections and reinoculation from active infections. The emergence of PV-induced papillomas in captive manatees, the possibility of activation of latent infection or transmission of active infection to free-ranging manatees, and the underlying cause of immune suppression predisposing manatees to develop viral papillomatosis are serious concerns for the future management of this highly endangered species. PMID:11784121

  12. Diaphragm structure and function in the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Rommel, S; Reynolds, J E

    2000-05-01

    Relative to many other mammals, little is known about the functional morphology of the four extant species of the order Sirenia. In this study, 166 Florida manatee (Trichechus manatus latirostris) carcasses fresh enough to collect detailed anatomical information were examined to describe the gross anatomy of the diaphragm. Our results show that the Florida manatee's diaphragm differs from those of other mammals in that it: lies in a dorsal plane, rather than in the more typical transverse plane; is located dorsal to the heart and does not attach to the sternum; and attaches medially at the "I"-shaped central tendon to bony projections extending ventrally from the vertebral bodies, forming two distinct hemidiaphragms. The manatee's transverse septum is a separate structure that lies at a right angle to the diaphragm and separates the heart from the liver and other viscera. The extreme muscularity of the diaphragm and the ability of manatees to adjust their position in the water column with minimal external movement suggest that diaphragmatic contractions may change the volume of each pleural cavity to affect buoyancy, roll, and pitch. We also hypothesize that such contractions, in concert with contractions of powerful abdominal muscles, may compress gas in the massive large intestine, and thereby also contribute to buoyancy control. PMID:10760742

  13. Brevetoxicosis in manatees (Trichechus manatus latirostris) from the 1996 epizootic: gross, histologic, and immunohistochemical features.

    Science.gov (United States)

    Bossart, G D; Baden, D G; Ewing, R Y; Roberts, B; Wright, S D

    1998-01-01

    In 1996, at least 149 manatees (Trichechus manatus latirostris) died in an unprecedented epizootic along the southwest coast of Florida. At about the same time, a bloom of the brevetoxin-producing dinoflagellates, Gymnodinium breve, was present in the same area. Grossly, severe nasopharyngeal, pulmonary, hepatic, renal, and cerebral congestion was present in all cases. Nasopharyngeal and pulmonary edema and hemorrhage were also seen. Consistent microscopic lesions consisted of catarrhal rhinitis, pulmonary hemorrhage and edema, multiorgan hemosiderosis, and nonsuppurative leptomeningitis. Immunohistochemical staining using a polyclonal primary antibody to brevetoxin (GAB) showed intense positive staining of lymphocytes and macrophages in the lung, liver, and secondary lymphoid tissues. Additionally, lymphocytes and macrophages associated with the inflammatory lesions of the nasal mucosa and meninges were also positive for brevetoxin. These findings implicate brevetoxicosis as a component of and the likely primary etiology for the epizootic. The data suggest that mortality resulting from brevetoxicosis may not necessarily be acute but may occur after chronic inhalation and/or ingestion. Immunohistochemical staining with interleukin-1-beta-converting enzyme showed positive staining with a cellular tropism similar to GAB. This suggests that brevetoxicosis may initiate apoptosis and/or the release of inflammatory mediators that culminate in fatal toxic shock. PMID:9547868

  14. Population viability analysis of the Florida manatee (Trichechus manatus latirostris), 1976-1991

    Science.gov (United States)

    Marmontel, M.; Humphrey, S.R.; O'Shea, T.J.

    1997-01-01

    Recent development of age-determination techniques for Florida manatees (Trichechus manatus latirostris) has permitted derivation of age-specific data on reproduction and survival of a sample of 1212 carcasses obtained throughout Florida from 1976–1991. Population viability analysis using these data projects a slightly negative growth rate (−0.003) and an unacceptably low probability of persistence (0.44) over 1000 years. The main factors affecting population projections were adult survival and fecundity. A 10% increase in adult mortality would drive the population to extinction over a 1000-year time scale, whereas a 10% decrease in adult mortality would allow slow population growth. A 10% decrease in reproduction would also result in extinction. We conclude that management must focus on retaining and improving the conditions under which manatee demography operates. The major identified agent of mortality is boat-manatee collisions, and rapidly increasing numbers of humans and registered boats portend an increase in manatee mortality. Zoning of manatee-occupied waters for reductions in boating activity and speed is essential to safeguard the manatee population. If boating regulations being implemented by the state of Florida in each of 13 key coastal counties are completed, enforced, and effective, manatees and human recreation could coexist indefinitely. If regulation is unsuccessful, the Florida manatee population is likely to decline slowly toward extinction.

  15. Vertebral anatomy in the Florida manatee, Trichechus manatus latirostris: a developmental and evolutionary analysis.

    Science.gov (United States)

    Buchholtz, Emily A; Booth, Amy C; Webbink, Katherine E

    2007-06-01

    The vertebral column of the Florida manatee presents an unusual suite of morphological traits. Key among these are a small precaudal count, elongate thoracic vertebrae, extremely short neural spines, lack of a sacral series, high lumbar variability, and the presence of six instead of seven cervical vertebrae. This study documents vertebral morphology, size, and lumbar variation in 71 skeletons of Trichechus manatus latirostris (Florida manatee) and uses the skeletons of Trichechus senegalensis (west African manatee) and Dugong dugon (dugong) in comparative analysis. Vertebral traits are used to define morphological, and by inference developmental, column modules and to propose their hierarchical relationships. A sequence of evolutionary innovations in column morphology is proposed. Results suggest that the origin of the fluke and low rates of cervical growth originated before separation of trichechids (manatees) and dugongids (dugongs). Meristic reduction in count is a later, trichechid innovation and is expressed across the entire precaudal column. Elongation of thoracic vertebrae may be an innovative strategy to generate an elongate column in an animal with a small precaudal count. Elimination of the lumbus through both meristic and homeotic reduction is currently in progress. PMID:17516429

  16. 78 FR 54479 - Endangered Species; Receipt of Applications for Permit

    Science.gov (United States)

    2013-09-04

    ... Heads of Executive Departments and Agencies of January 21, 2009--Transparency and Open Government (74 FR...), Yacare caiman (Caiman yacare), broad-snouted caiman (Caiman latirostris), Cuban ground iguana (Cyclura nubila nubila), Grand Cayman blue iguana (Cyclura lewisi), and Cayman Brac ground iguana (Cyclura...

  17. Histologia do antro pilórico de Caiman crocodilus yacare (Crocodilia - Reptilia

    Directory of Open Access Journals (Sweden)

    Sonia Maria Jin

    1988-01-01

    Full Text Available Descreve-se a histologia geral do antro pilórico do estômago de Caiman crocodilus yacare. Essa região gástrica apresenta: mucosa, submucosa, muscular e serosa. A mucosa é revestida por epitélio cilíndrico simples do tipo mucoso e apresenta lâmina própria delgada, com glândulas simples, tubulosas, ramificadas, esparsas; o epitélio glandular é do tipo mucoso e apresenta nas paredes algumas células poliédricas de núcleo central e citoplasma rico em grânulos acidófilos.The general histology of the pyloric antrum of the stomach of Caiman crocodilus yacare is described. In the pyloric antrum, from the lumen outward, are found the mucosa, the submucosa, the muscular and the serosa layers. The mucosa is lined by a simple columnar epithelium and shows lamina propria with tubulous mucous glands. The epithelium of the pyloric glands is mucous and shows in the walls some polyedric cells, with central nuclei and the cytoplasm is rich in acidophilic granules.

  18. Diaphragmatic hernia and right-sided heart enlargement in a Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Gerlach, Trevor J; de Wit, Martine; Landolfi, Jennifer A

    2012-10-01

    Postmortem evaluation of a Florida manatee (Trichechus manatus latirostris) revealed cold stress lesions and previous watercraft trauma that included broken ribs, a diaphragmatic hernia, an enlarged vena cava, and right-sided cardiomegaly. We discuss these findings and present a possible pathogenesis for the cardiomegaly. PMID:23060518

  19. Digesta passage rates in the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Larkin, Iskande L V; Fowler, Vivienne F; Reep, Roger L

    2007-11-01

    The Florida manatee, Trichechus manatus latirostris (Sirenia: Trichechidae), is an herbivorous marine mammal found within coastal areas throughout the state of Florida, which feeds on both fresh and salt water sea grasses. Manatees, like other Sirenians, are a tropical species with little tolerance for water temperatures below 20 degrees C, rely on a relatively poor nutritional food source, and have a low metabolic rate. Although manatees are hindgut fermenting herbivores, they are very efficient at extracting nutrients from the plants on which they feed. Slow passage rates of digesta have been suggested to be a factor in this increased efficiency. Two studies monitored the digesta passage times and mixing of particulate digesta within the manatee digestive tract using MicroGrits colored corncob grit as a fecal marker. Fecal samples were collected subsequently from four manatees in Study 1 and 3 manatees in Study 2, grit pieces removed, counted, and measured. The digesta passage times ranged from 6 and 10 days in Study 1, and 4.3 and 8.3 days in Study 2, supporting data presented in previous studies. When two different colored markers were administered on sequential days, minimal to no mixing was seen in recovered feces, suggesting that the digesta from a given day traveled through the tract as a bolus. Less than 1% of the marker fed was recovered and we hypothesize that perpendicular folds of the large intestine may be the major contributing factor, with pieces being retained and eventually digested. Zoo Biol 26:503-515, 2007. (c) 2007 Wiley-Liss, Inc. PMID:19360597

  20. Retinal projections in two crocodilian species, Caiman crocodilus and Crocodylus niloticus.

    Science.gov (United States)

    Derobert, Y; Médina, M; Rio, J P; Ward, R; Repérant, J; Marchand, M J; Miceli, D

    1999-08-01

    The retinal projections of Caiman crocodilus and Crocodylus niloticus were investigated by means of the orthograde axonal transport of either rhodamine beta-isothiocyanate or tritiated proline. In these two species, each tracer revealed contralateral retinal projections to three hypothalamic regions (subventricular gray matter, nucleus suprachiasmaticus, and area optica hypothalami lateralis), five thalamic regions (nuclei ovalis, dorsolateralis anterior, ventrolateralis and ventrobasalis, and lateral geniculate complex, of which six subcomponents can be distinguished), six pretectal regions (nuclei posterodorsalis, lentiformis mesencephali, griseus tectalis, geniculatus pretectalis, area optica commissurae posterior and area optica pretectalis lateroventralis), six outermost layers of the optic tectum, and the nucleus opticus tegmenti. Weak ipsilateral retinal projections have been observed in two hypothalamic nuclei and in the nucleus opticus tegmenti. Comparative analysis with other data show that the contralateral retinal projections of crocodiles are considerably more reptilian than avian. Moreover, crocodiles share with birds an extremely poor contingent of ipsilateral retinal projections. PMID:10424875

  1. Histologia do antro pilórico de Caiman crocodilus yacare (Crocodilia - Reptilia)

    OpenAIRE

    Sonia Maria Jin

    1988-01-01

    Descreve-se a histologia geral do antro pilórico do estômago de Caiman crocodilus yacare. Essa região gástrica apresenta: mucosa, submucosa, muscular e serosa. A mucosa é revestida por epitélio cilíndrico simples do tipo mucoso e apresenta lâmina própria delgada, com glândulas simples, tubulosas, ramificadas, esparsas; o epitélio glandular é do tipo mucoso e apresenta nas paredes algumas células poliédricas de núcleo central e citoplasma rico em grânulos acidófilos.The general histology of th...

  2. Blood mineral concentrations in manatees (Trichechus manatus latirostris and Trichechus manatus manatus)

    Science.gov (United States)

    Siegal-Willott, J.; Harr, Kendal E.; Hall, Jeffery O.; Hayek, Lee-Ann C.; Auil-Gomez, Nicole; Powell, James A.; Bonde, Robert K.; Heard, Darryl

    2013-01-01

    Limited information is available regarding the role of minerals and heavy metals in the morbidity and mortality of manatees. Whole-blood and serum mineral concentrations were evaluated in apparently healthy, free-ranging Florida (Trichechus manatus latirostris, n = 31) and Belize (Trichechus manatus manatus, n = 14) manatees. Toxicologic statuses of the animals and of their environment had not been previously determined. Mean mineral whole-blood (WB) and serum values in Florida (FL) and Belize (BZ) manatees were determined, and evaluated for differences with respect to geographic location, relative age, and sex. Mean WB and serum silver, boron, cobalt, magnesium, molybdenum, and WB cadmium concentrations were significantly higher in BZ versus FL manatees (P ≤ 0.05). Mean WB aluminum, calcium, manganese, sodium, phosphorus, vanadium, and serum zinc concentrations were significantly lower in BZ versus FL manatees. Adult manatees had significant and higher mean WB aluminum, manganese, sodium, antimony, vanadium, and serum manganese and zinc concentrations compared to juvenile animals. Significant and lower mean WB and serum silver, boron, cobalt, and serum copper and strontium concentrations were present in adults compared to juveniles (P ≤ 0.05). Females had significant and higher mean WB nickel and serum barium compared to males (P ≤ 0.05). Mean WB arsenic and zinc, and mean serum iron, magnesium, and zinc concentrations fell within toxic ranges reported for domestic species. Results reveal manatee blood mineral concentrations differ with location, age, and sex. Influence from diet, sediment, water, and anthropogenic sources on manatee mineral concentration warrant further investigation.

  3. Effects of environmental stressors on lymphocyte proliferation in Florida manatees, Trichechus manatus latirostris.

    Science.gov (United States)

    Walsh, Cathy J; Luer, Carl A; Noyes, David R

    2005-02-10

    The health of many Florida manatees (Trichechus manatus latirostris) is adversely affected each year by exposure to cold weather or harmful algal blooms (red tide; Karenia brevis). Exposures can be sublethal, resulting in stressed animals that are rescued and taken to authorized facilities for rehabilitation, or lethal if exposures are prolonged or unusually severe. To investigate whether sublethal environmental exposures can impair immune function in manatees, rendering animals vulnerable to disease or death, mitogen-induced proliferation was assessed in lymphocytes from manatees exposed to cold temperatures (N=20) or red tide (N=19) in the wild, and compared to lymphocyte responses from healthy free-ranging manatees (N=32). All animals sampled for this study were adults. Lymphocytes were stimulated in vitro with either concanavalin A (ConA) or phytohemagglutinin (PHA) and proliferation was assessed after 96 h using incorporation of the thymidine analog, bromodeoxyuridine (BrdU), into newly synthesized DNA. Proliferation of lymphocytes from manatees rescued from exposure to red tide or cold-stress was approximately one-third that of lymphocytes from healthy free-ranging manatees. To examine the direct effects of red tide toxins on lymphocyte function, mitogen-induced proliferation was assessed following co-culture of lymphocytes with K. brevis toxin extracts. Stimulation indices decreased with increasing toxin concentration, with a significant decrease in proliferation occurring in the presence of 400 ng red tide toxins/ml. When lymphocytes from cold-stressed manatees were co-cultured with red tide toxin extracts, proliferative responses were reduced even further, suggesting multiple stressors may have synergistic effects on immune function in manatees. PMID:15621310

  4. Production of nitric oxide by peripheral blood mononuclear cells from the Florida manatee, Trichechus manatus latirostris.

    Science.gov (United States)

    Walsh, Catherine J; Stuckey, Joyce E; Cox, Heather; Smith, Brett; Funke, Christina; Stott, Jeff; Colle, Clarence; Gaspard, Joseph; Manire, Charles A

    2007-08-15

    Florida manatees (Trichechus manatus latirostris) are exposed to many conditions in their habitat that may adversely impact health and impair immune function in this endangered species. In an effort to increase the current knowledge base regarding the manatee immune system, the production of an important reactive nitrogen intermediate, nitric oxide (NO), by manatee peripheral blood mononuclear cells (PBMC) was investigated. PBMC from healthy captive manatees were stimulated with LPS, IFN-gamma, or TNF-alpha, either alone or in various combinations, with NO production assessed after 24, 48, 72, and 96 h of culture. NO production in response to LPS stimulation was significantly greater after 48, 72, or 96 h of culture compared to NO production after 24h of culture. A specific inhibitor of inducible nitric oxide synthase (iNOS), L-NIL (L-N(6)-(1-iminoethyl)lysine), significantly decreased NO production by LPS-stimulated manatee PBMC. Manatee specific oligonucleotide primers for iNOS were designed to measure expression of relative amounts of mRNA in LPS-stimulated manatee PBMC from captive manatees. NO production by PBMC from manatees exposed to red tide toxins was analyzed, with significantly greater NO production by both unstimulated and LPS stimulated PBMC from red tide exposed compared with healthy captive or cold-stress manatees. Free-ranging manatees produced significantly lower amounts of nitric oxide compared to either captive or red tide rescued manatees. Results presented in this paper contribute to the current understanding of manatee immune function and represent the first report of nitric oxide production in the immune system of a marine mammal. PMID:17614139

  5. Blood mineral concentrations in manatees (Trichechus manatus latirostris and Trichechus manatus manatus).

    Science.gov (United States)

    Siegal-Willott, Jessica L; Harr, Kendal E; Hall, Jeffery O; Hayek, Lee-Ann C; Auil-Gomez, Nicole; Powell, James A; Bonde, Robert K; Heard, Darryl

    2013-06-01

    Limited information is available regarding the role of minerals and heavy metals in the morbidity and mortality of manatees. Whole-blood and serum mineral concentrations were evaluated in apparently healthy, free-ranging Florida (Trichechus manatus latirostris, n = 31) and Belize (Trichechus manatus manatus, n = 14) manatees. Toxicologic statuses of the animals and of their environment had not been previously determined. Mean mineral whole-blood (WB) and serum values in Florida (FL) and Belize (BZ) manatees were determined, and evaluated for differences with respect to geographic location, relative age, and sex. Mean WB and serum silver, boron, cobalt, magnesium, molybdenum, and WB cadmium concentrations were significantly higher in BZ versus FL manatees (P < 0.05). Mean WB aluminum, calcium, manganese, sodium, phosphorus, vanadium, and serum zinc concentrations were significantly lower in BZ versus FL manatees. Adult manatees had significant and higher mean WB aluminum, manganese, sodium, antimony, vanadium, and serum manganese and zinc concentrations compared to juvenile animals. Significant and lower mean WB and serum silver, boron, cobalt, and serum copper and strontium concentrations were present in adults compared to juveniles (P < or = 0.05). Females had significant and higher mean WB nickel and serum barium compared to males (P < or = 0.05). Mean WB arsenic and zinc, and mean serum iron, magnesium, and zinc concentrations fell within toxic ranges reported for domestic species. Results reveal manatee blood mineral concentrations differ with location, age, and sex. Influence from diet, sediment, water, and anthropogenic sources on manatee mineral concentration warrant further investigation. PMID:23805546

  6. Four-choice sound localization abilities of two Florida manatees, Trichechus manatus latirostris.

    Science.gov (United States)

    Colbert, Debborah E; Gaspard, Joseph C; Reep, Roger; Mann, David A; Bauer, Gordon B

    2009-07-01

    The absolute sound localization abilities of two Florida manatees (Trichechus manatus latirostris) were measured using a four-choice discrimination paradigm, with test locations positioned at 45 deg., 90 deg., 270 deg. and 315 deg. angles relative to subjects facing 0 deg. Three broadband signals were tested at four durations (200, 500, 1000, 3000 ms), including a stimulus that spanned a wide range of frequencies (0.2-20 kHz), one stimulus that was restricted to frequencies with wavelengths shorter than their interaural time distances (6-20 kHz) and one that was limited to those with wavelengths longer than their interaural time distances (0.2-2 kHz). Two 3000 ms tonal signals were tested, including a 4 kHz stimulus, which is the midpoint of the 2.5-5.9 kHz fundamental frequency range of manatee vocalizations and a 16 kHz stimulus, which is in the range of manatee best-hearing sensitivity. Percentage correct within the broadband conditions ranged from 79% to 93% for Subject 1 and from 51% to 93% for Subject 2. Both performed above chance with the tonal signals but had much lower accuracy than with broadband signals, with Subject 1 at 44% and 33% and Subject 2 at 49% and 32% at the 4 kHz and 16 kHz conditions, respectively. These results demonstrate that manatees are able to localize frequency bands with wavelengths that are both shorter and longer than their interaural time distances and suggest that they have the ability to localize both manatee vocalizations and recreational boat engine noises. PMID:19525437

  7. Digestive efficiencies of ex situ and in situ West Indian manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Worthy, Graham A J; Worthy, Tamara A M

    2014-01-01

    Digestive efficiencies (Dm) of ex situ and in situ manatees (Trichechus manatus latirostris) were, for the first time, assessed using manganese (Mn(2+)) as a naturally occurring marker. The Dm of ex situ manatees determined using [Mn(2+)] did not differ significantly from the Dm assessed using lignin, supporting the efficacy of the manganese approach. Gastrointestinal tract samples, obtained from recently dead animals, showed [Mn(2+)] concentrations were lowest in the stomach and remained low in the duodenum and small intestine but increased in the cecum, colon, and rectum, consistent with colonic digestion and absorption. In situ manatees consuming marine vegetation had significantly lower Dm (mean ± SE, 46.9% ± 1.8%; n=8) than did in situ manatees consuming freshwater vegetation (77.8% ± 2.6%; n=7), which in turn had significantly lower values than did ex situ manatees consuming lettuce (84.0% ± 0.7%; n=37). In situ manatees eating seagrasses had significantly higher Dm than did long-term ex situ animals consuming seagrass for short periods of time (46.9% ± 1.8% vs. 36.2% ± 1.2%, respectively), suggesting potential modification of gut flora over time. One significant ramification of our results is that manatees consuming seagrasses would require a greater standing biomass to support their needs than would be required if they were eating freshwater vegetation. This reinforces the critical need to implement habitat conservation and protection before considering downlisting or delisting manatees as an endangered species. PMID:24457923

  8. Distribution patterns, population status and conservation of Melanosuchus niger and Caiman yacare (Crocodylia, Alligatoridae in oxbow lakes of the Ichilo river floodplain, Bolivia

    Directory of Open Access Journals (Sweden)

    Ximena Aguilera

    2008-06-01

    Full Text Available Caiman yacare (lagarto and Melanosuchus niger (black caiman, sympatric species in the Bolivian Amazon basin, have been severely overexploited in the past. We present the results of a standardized survey of C. yacare and M. niger populations in order to evaluate their actual population status in twelve oxbow lakes of the Ichilo River floodplain. Additionally we explored the effect of environmental and anthropogenic variables on caiman distribution patterns. The average density of C. yacare and M. niger in the shoreline of floodplain lakes was of 6 and 1 ind/km, respectively. For both species, the population was composed mainly of juvenile individuals. We used regression tree analysis (RTA to assess patterns of M. niger and C. yacare densities with eight environmental and two anthropogenic variables. The RTA analysis showed that the variation in the densities of both C. yacare (52.4 % and M. niger (36.8 % was related to water conductivity. For C. yacare, higher densities occurred at higher values of water conductivity, while M. niger densities followed an opposite trend, resulting in relatively well spatially segregated populations of the two species. After excluding conductivity, Lake-River Distance (LRD was shown to be the main splitting variable in the RTA analysis. The observed distribution patterns may be the result of the historical post-hunting situation, in combination with differences in habitat selection by the two species, and competitive exclusion processes between the two species. M. niger, a species reported to be recovering slowly from previous low population levels, appears relatively well protected in the Ichilo river floodplain. Rev. Biol. Trop. 56 (2: 909-929. Epub 2008 June 30.Caiman yacare (lagarto y Melanosuchus niger (caiman negro, son dos especies simpátricas para la cuenca amazónica Boliviana que han sido severamente sobreexlotadas en el pasado. El objetivo de la presente investigación es el de evaluar el estado actual

  9. Physico-chemical and sensory attributes of low-sodium restructured caiman steaks containing microbial transglutaminase and salt replacers.

    Science.gov (United States)

    Canto, Anna C V C S; Lima, Bruno R C Costa; Suman, Surendranath P; Lazaro, Cesar A; Monteiro, Maria Lucia G; Conte-Junior, Carlos A; Freitas, Monica Q; Cruz, Adriano G; Santos, Erica B; Silva, Teofilo J P

    2014-01-01

    Our objective was to examine the physico-chemical and sensory attributes of low-sodium restructured caiman steaks containing microbial transglutaminase (MTG) and salt replacers (KCl and MgCl2). Trimmings from caiman carcasses were processed into restructured steaks with or without MTG and salt replacers; the five treatments were CON (1.5% NaCl), T-1 (1.5% NaCl+1% MTG), T-2 (0.75% NaCl+1% MTG+0.75% KCl), T-3 (0.75% NaCl+1% MTG+0.75% MgCl2), and T-4 (0.75% NaCl+1% MTG+0.375% KCl+0.375% MgCl2). T-4 demonstrated the greatest (Ppurchase intention was for T-3. Furthermore, T-3 and T-4 were similar (P>0.05) to controls in salty flavor. Our findings suggest that the combination of MTG, KCl, and MgCl2 can be employed as a suitable salt reduction strategy in restructured caiman steaks without compromising sensory attributes and consumer acceptance. PMID:24036259

  10. Report of a bite by the South American colubrid snake Philodryas olfersii latirostris (Squamata: Colubridae

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    María Elisa Peichoto

    2007-01-01

    Full Text Available Following the bite of Philodryas olfersii latirostris Cope, 1862, a 29-year-old male herpetologist developed localized and burning pain, and minimal bleeding from the puncture marks of posterior maxillary teeth, which subsided rapidly. The victim developed no other local signs or symptoms. After few days the victim presented persistent severe rotatory dizziness, nausea, and vomiting. On examination his hearing was normal. Neurological exam was otherwise normal. The patient had acute vertiginous symptoms but had no associated neurological signs. Computed tomography did not show abnormality. A diagnosis of labyrinthine syndrome was made. It was treated conservatively, and the patient recovered uneventfully. It was assumed as an effect of ophitoxemia. This case may be regarded as an unusual presentation of systemic envenoming following a human bite by Philodryas olfersii latirostris.

  11. Isolation and characterization of 13 polymorphic microsatellites for the Hokkai Shrimp, Pandalus latirostris

    OpenAIRE

    Azuma, Noriko; Seki, Yuta; Kikkawa, Yoshiaki; Nakagawa, Tomoyuki; IWATA, Yoko; Sato, Taku; Munehara, Hiroyuki; Chiba, Susumu

    2011-01-01

    We have developed and characterized 13 novel polymorphic microsatellite markers for the Hokkai Shrimp, Pandalus latirostris, to provide an effective tool for conducting genetic studies on this species. No linkage disequilibria and no deviation from HWE were detected in these markers. In 32 individuals from Lake Notoro in Hokkaido, Japan, the number of alleles and expected heterozygosities ranged from 7 to 22 and from 0.84 to 0.95, respectively, suggesting the availability of these markers for...

  12. Methods used during gross necropsy to determine watercraft-related mortality in the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Lightsey, Jessica D; Rommel, Sentiel A; Costidis, Alexander M; Pitchford, Thomas D

    2006-09-01

    Between 1993 and 2003, 713 (24%) of 2,940 dead Florida manatees (Trichechus manatus latirostris) recovered from Florida waters and examined were killed by watercraft-induced trauma. It was determined that this mortality was the result of watercraft trauma because the external wound patterns and the internal lesions seen during gross necropsy are recognizable and diagnostic. This study documents the methods used in determining watercraft-related mortality during gross necropsy and explains why these findings are diagnostic. Watercraft can inflict sharp- and blunt-force trauma to manatees, and both types of trauma can lead to mortality. This mortality may be a direct result of the sharp and blunt forces or from the chronic effects resulting from either force. In cases in which death is caused by a chronic wound-related complication, the original incident is usually considered to be the cause of death. Once a cause of death is determined, it is recorded in an extensive database and is used by Federal and state managers in developing strategies for the conservation of the manatee. Common sequelae to watercraft-induced trauma include skin lesions, torn muscles, fractured and luxated bones, lacerated internal organs, hemothorax, pneumothorax, pyothorax, hydrothorax, abdominal hemorrhage and ascites, and pyoperitoneum. PMID:17319124

  13. Assessement of serum amyloid A levels in the rehabilitation setting in the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Cray, Carolyn; Dickey, Meranda; Brewer, Leah Brinson; Arheart, Kristopher L

    2013-12-01

    The acute phase protein serum amyloid A (SAA) has been previously shown to have value as a biomarker of inflammation and infection in many species, including manatees (Trichechus manatus latirostris). In the current study, results from an automated assay for SAA were used in a rehabilitation setting. Reference intervals were established from clinically normal manatees using the robust method: 0-46 mg/L. More than 30-fold higher mean SAA levels were observed in manatees suffering from cold stress and boat-related trauma. Poor correlations were observed between SAA and total white blood count, percentage of neutrophils, albumin, and albumin/globulin ratio. A moderate correlation was observed between SAA and the presence of nucleated red blood cells. The sensitivity of SAA testing was 93% and the specificity was 98%, representing the highest combined values of all the analytes. The results indicate that the automated method for SAA quantitation can provide important clinical data for manatees in a rehabilitation setting. PMID:24450049

  14. Spleen morphology and vascularization in the alligator (Caiman crocodilus yacare – Daudin, 1802

    Directory of Open Access Journals (Sweden)

    Alan Peres Ferraz de Melo

    2013-11-01

    Full Text Available The Caiman crocodilus yacare is found from northern Argentina to the southern Amazon basin, mainly occurring in Pantanal. Its food consists of fishes and other aquatic vertebrates and invertebrates, such as crabs, winkles, and insects. Its length can reach 3 meters and this species is important because it provides biological control of other animal species, by feeding on weak, old, and ill individuals, unable to escape its attack. A total of 15 alligators were used, young males and females, using histological techniques; injection techniques with Neoprene latex 450 and vinyl acetate; and radiographic techniques to observe particularities of spleen in this species. The organ has a conical shape, being thicker at its cranial end and tapering at its caudal end. Spleen involved the cranial mesenteric artery, which went towards the intestines, from its origin in the celiac artery until its middle third, through the splenic parenchyma in all preparations. Spleen irrigation in the alligator was originated from the celiac artery, through its branch, the cranial mesenteric artery, which branched into splenic arteries, only within this organ. The splenic veins showed up as the cranial, craniomedial, medial, and caudal splenic veins which drain from the splenic capsule to the medullary region, going through the cortical region and going towards the hepatic portal vein. Spleen in the alligator showed no correspondence between the arteries and veins responsible for the vascularization of a certain splenic territory, but one observed arteries irrigating and veins draining particular areas of the splenic parenchyma.

  15. A Core Stochastic Population Projection Model for Florida Manatees (Trichechus manatus latirostris)

    Science.gov (United States)

    Runge, Michael C.; Sanders-Reed, Carol A.; Fonnesbeck, Christopher J.

    2007-01-01

    A stochastic, stage-based population model was developed to describe the life history and forecast the population dynamics of the Florida manatee (Trichechus manatus latirostris) in four separate regions of Florida. This population model includes annual variability in survival and reproductive rates, demographic stochasticity, effects of changes in warm-water capacity, and catastrophes. Further, the model explicitly accounts for uncertainty in parameter estimates. This model is meant to serve as a flexible tool for use in assessments relevant to management decision making, and was used in the State of Florida's recent biological status review. The parameter estimates and model structure described herein reflect our understanding of manatee demography at the time that this status review was completed. In the Northwest and Upper St. Johns regions, the model predicts that the populations will increase over time until warm-water capacity is reached, at which point growth will taper off. In the Atlantic region, the model predicts a stable or slightly increasing population over the next decade or so, and then a decrease as industrial warm-water capacity is lost. In the Southwest region, the model predicts a decline over time, driven by high annual mortality in the short-term and exacerbated by loss of industrial warm-water winter refuges over the next 40 years. Statewide, the likelihood of a 50% or greater decline in three manatee generations was 12%; the likelihood of a 20% or greater decline in two generations was 56%. These declines are largely driven by the anticipated loss of warm-water capacity, especially in the Atlantic and Southwest regions. The estimates of probability of extinction within 100 years were 11.9% for the Southwest region, 0.6% for the Northwest, 0.04% for the Atlantic, and <0.02% for the Upper St. Johns. The estimated probability that the statewide population will fall below 1000 animals within 100 years was 2.3%. Thus, while the estimated

  16. Evaluación sensorial de derivados cárnicos de carne de babilla (Caiman crocodilus crocodilus)

    OpenAIRE

    William Raúl Mayorga Rodríguez; Diego Giovanni Yepes Parra; Ernesto Vladimir Ortiz Peña; Jairo Humberto López Vargas; Miguel Ángel Alarcón García

    2010-01-01

    El objetivo de este trabajo fue analizar sensorialmente dos productos cárnicos (jamón de alta inyección y costillas ahumadas) elaborados con base en carne de babilla (Caiman crocodilus crocodilus). Se utilizaron 21 animales con tallas entre los 90 y 120 cm de largo, los cuales procedían del Zoocriadero Santa Ana, situado en la ciudad de Villavicencio, Meta, Colombia. El análisis proximal (% grasa, % humedad, % proteína) de los productos cárnicos elaborados fue realizado en el Laboratorio de N...

  17. Diagnostic stages of the parasites of the Florida manatee, Trichechus manatus latirostris.

    Science.gov (United States)

    Bando, Monica; Larkin, Iskande V; Wright, Scott D; Greiner, Ellis C

    2014-02-01

    Limited information is available on diagnostic stages of parasites in Florida manatees (Trichechus manatus latirostris). We examined 67 fecal samples from captive and wild manatees to define the diagnostic stages of the parasite fauna known to occur in Florida manatees. Parasite eggs were freshly extracted ex utero from identified mature helminths and subsequently characterized, illustrated, and matched to those isolated from fecal samples. In addition, coccidian oocysts in the fecal samples were identified. These diagnostic stages included eggs from 5 species of trematodes (Chiorchis fabaceus, Chiorchis groschafti, Pulmonicola cochleotrema, Moniligerum blairi, and Nudacotyle undicola), 1 nematode (Heterocheilus tunicatus), and oocysts of 2 coccidians (Eimeria manatus and Eimeria nodulosa). PMID:24116863

  18. Polymorphic microsatellite DNA markers for the Florida manatee (Trichechus manatus latirostris)

    Science.gov (United States)

    Pause, K.C.; Nourisson, C.; Clark, A.; Kellogg, M.E.; Bonde, R.K.; McGuire, P.M.

    2007-01-01

    Florida manatees (Trichechus manatus latirostris) are marine mammals that inhabit the coastal waters and rivers of the southeastern USA, primarily Florida. Previous studies have shown that Florida manatees have low mitochondrial DNA variability, suggesting that nuclear DNA loci are necessary for discriminatory analyses. Here we report 10 polymorphic microsatellite loci with an average of 4.2 alleles per locus, and average heterozygosity of 50.1%. These loci have been developed for use in population studies, parentage assignment, and individual identification. ?? 2007 Blackwell Publishing Ltd.

  19. Activity of Tabanids (Insecta: Diptera: Tabanidae Attacking the Reptiles Caiman crocodilus (Linn. (Alligatoridae and Eunectes murinus (Linn. (Boidae, in the Central Amazon, Brazil

    Directory of Open Access Journals (Sweden)

    Ferreira Ruth LM

    2002-01-01

    Full Text Available Tabanid females are better known as hematophagous on man and other mammals, and linked to mechanical transmission of parasites. The association between tabanids and reptiles is poorly known, but has been gaining more corroboration through experiments and occasional observation in the tropics. The present study was conducted at a military base (CIGS/BI-2, situated 54 km from Manaus, Amazonas, in a small stream in a clearing (02°45'33"S; 59°51'03"W. Observations were made monthly, from April 1997 to March 1998, during two consecutive days. At the same time, other vertebrate animals were offered, including humans. However in this paper only data obtained on a common caiman, Caiman crocodilus (Linn., and an anaconda, Eunectes murinus (Linn., in diurnal observations from 05:30 a.m. to 18:30 p.m., will be discussed. A total of 254 tabanid specimens were collected, 40 from the anaconda and 214 from the caiman. Four tabanid species were recorded on these two reptiles: Stenotabanus cretatus Fairchild, S. bequaerti Rafael et al., Phaeotabanus nigriflavus (Kröber and Tabanus occidentalis Linn. Diurnal activities showed species-specific patterns. The first three species occurred only in the dry season. T. occidentalis occurred during the whole observation period, and with increased frequency at the end of the dry season. We observed preferences for body area and related behavior of the host. Observations on the attack of tabanids on one dead caiman are also presented.

  20. Ultrastructural studies on the sporogony of Hepatozoon spp. in Culex quinquefasciatus say, 1823 fed on infected Caiman crocodilus and Boa constrictor from northern Brazil.

    Science.gov (United States)

    Paperna, I; Lainson, R

    2003-08-01

    Laboratory reared Culex quinquefasciatus Say, 1823 originating from the vicinity of Belem, in northern Brazil, were allowed to engorge on caimans (Caiman c. crocodilus) infected with Hepatozoon caimani (Carini, 1909) and boas (Boa constrictor) infected with H. cf. terzii (Sambon and Seligmann, 1907) both from Para State. Engorged mosquitoes killed on successive days post-feeding (p.f.) were studied by transmission electron microscopy. Images of oocysts from 13 days p.f., caiman-fed mosquitoes were also examined by scanning electron microscopy. The Hepatozoon spp. from the respective hosts differed in their ability to develop in C. quinquefasciatus. Most female mosquitoes fed on caimans, became fully engorged, and survived beyond 22 days p.f., whereas those engorged on boa became debilitated and did not survive beyond 9 days p.f. In boa-fed mosquitoes oocysts were found on the 6th day p.f. The few mosquitoes surviving to the 9th day p.f. contained either undivided oocysts or those that had already commenced sporogenic division. By 8-10 days p.f. caiman-fed mosquitoes contained uninucleate oocysts. Sporogonic divisions were observed from day 12 p.f. onwards. Although sporogenic development conformed in general with the previously reported accounts, the study allowed a more detailed examination of the plasmalemmal endocytotic system, and the consolidation of the crystalline body in specialized 'factories' of cystalline material. Sporozoite differentiation occasionally started on the 18th day p.f., but otherwise was observed only on day 22 p.f. PMID:12954016

  1. Characterization of a Novel Close-to-Root Papillomavirus from a Florida Manatee by Using Multiply Primed Rolling-Circle Amplification: Trichechus manatus latirostris Papillomavirus Type 1†

    OpenAIRE

    Rector, Annabel; Bossart, Gregory D.; Ghim, Shin-je; John P Sundberg; Jenson, A. Bennett; Van Ranst, Marc

    2004-01-01

    By using an isothermal multiply primed rolling-circle amplification protocol, the complete genomic DNA of a novel papillomavirus was amplified from a skin lesion biopsy of a Florida manatee (Trichechus manatus latirostris), one of the most endangered marine mammals in United States coastal waters. The nucleotide sequence, genome organization, and phylogenetic position of the Trichechus manatus latirostris papillomavirus type 1 (TmPV-1) were determined. TmPV-1 is the first virus isolated from ...

  2. Comparison of blood aminotransferase methods for assessment of myopathy and hepatopathy in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Harr, Kendal E; Allison, Kathryn; Bonde, Robert K; Murphy, David; Harvey, John W

    2008-06-01

    Muscle injury is common in Florida manatees (Trichechus manatus latirostris). Plasma aspartate aminotransferase (AST) is frequently used to assess muscular damage in capture myopathy and traumatic injury. Therefore, accurate measurement of AST and alanine aminotransferase (ALT) is important in managed, free-ranging animals, as well as in those rehabilitating from injury. Activities of these enzymes, however, are usually not increased in manatees with either acute or chronic muscle damage, despite marked increases in plasma creatine kinase activity. It is hypothesized that this absence of response is due to apoenzymes in the blood not detected by commonly used veterinary assays. Addition of coenzyme pyridoxal-5-phosphate (P5P or vitamin B6) should, therefore, result in higher measured enzyme activities. The objective of this study was to determine the most accurate, precise, and diagnostically useful method for aminotransferase measurement in manatees that can be used in veterinary practices and diagnostic laboratories. Additionally, appropriate collection and storage techniques were assessed. The use of an optimized commercial wet chemical assay with 100 micromol P5P resulted in a positive bias of measured enzyme activities in a healthy population of animals. However, AST and ALT were still much lower than that typically observed in domestic animals and should not be used alone in the assessment of capture myopathy and muscular trauma. Additionally, the dry chemistry analyzer, typically used in clinics, reported significantly higher and less precise AST and ALT activities with poor correlation to those measured with wet chemical methods found in diagnostic laboratories. Therefore, these results cannot be clinically compared. Overall, the optimized wet chemical method was the most precise and diagnostically useful measurement of aminotransferase in samples. Additionally, there was a statistically significant difference between paired serum and plasma measurement

  3. A Quantitative Threats Analysis for the Florida Manatee (Trichechus manatus latirostris)

    Science.gov (United States)

    Runge, Michael C.; Sanders-Reed, Carol A.; Langtimm, Catherine A.; Fonnesbeck, Christopher J.

    2007-01-01

    The Florida manatee (Trichechus manatus latirostris) is an endangered marine mammal endemic to the southeastern United States. The primary threats to manatee populations are collisions with watercraft and the potential loss of warm-water refuges. For the purposes of listing, recovery, and regulation under the Endangered Species Act (ESA), an understanding of the relative effects of the principal threats is needed. This work is a quantitative approach to threats analysis, grounded in the assumption that an appropriate measure of status under the ESA is based on the risk of extinction, as quantified by the probability of quasi-extinction. This is related to the qualitative threats analyses that are more common under the ESA, but provides an additional level of rigor, objectivity, and integration. In this approach, our philosophy is that analysis of the five threat factors described in Section 4(a)(1) of the ESA can be undertaken within an integrated quantitative framework. The basis of this threats analysis is a comparative population viability analysis. This involves forecasting the Florida manatee population under different scenarios regarding the presence of threats, while accounting for process variation (environmental, demographic, and catastrophic stochasticity) as well as parametric and structural uncertainty. We used the manatee core biological model (CBM) for this viability analysis, and considered the role of five threats: watercraft-related mortality, loss of warm-water habitat in winter, mortality in water-control structures, entanglement, and red tide. All scenarios were run with an underlying parallel structure that allowed a more powerful estimation of the effects of the various threats. The results reflect our understanding of manatee ecology (as captured in the structure of the CBM), our estimates of manatee demography (as described by the parameters in the model), and our characterization of the mechanisms by which the threats act on manatees. As an

  4. Temporal resolution of the Florida manatee (Trichechus manatus latirostris) auditory system.

    Science.gov (United States)

    Mann, David A; Colbert, Debborah E; Gaspard, Joseph C; Casper, Brandon M; Cook, Mandy L H; Reep, Roger L; Bauer, Gordon B

    2005-10-01

    Auditory evoked potential (AEP) measurements of two Florida manatees (Trichechus manatus latirostris) were measured in response to amplitude modulated tones. The AEP measurements showed weak responses to test stimuli from 4 kHz to 40 kHz. The manatee modulation rate transfer function (MRTF) is maximally sensitive to 150 and 600 Hz amplitude modulation (AM) rates. The 600 Hz AM rate is midway between the AM sensitivities of terrestrial mammals (chinchillas, gerbils, and humans) (80-150 Hz) and dolphins (1,000-1,200 Hz). Audiograms estimated from the input-output functions of the EPs greatly underestimate behavioral hearing thresholds measured in two other manatees. This underestimation is probably due to the electrodes being located several centimeters from the brain. PMID:16001184

  5. Ultrastructure of the spermatozoa from a Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Miller, D L; Dougherty, M M; Decker, S J; Bossart, G D

    2001-08-01

    Semen was opportunistically collected from a free-ranging, 10-year-old, 275 cm (total length) Florida manatee (Trichechus manatus latirostris) during rehabilitation treatments. Ultrastructure of the spermatozoa was examined by scanning and transmission electron microscopy and differed slightly from that described for other mammals. Comparisons to the manatee's closest phylogenetic relatives, the elephant and hyrax, were made. The manatee spermatozoa had a similar acrosome but a distinct annulus and lacked the dense bodies observed in the neck of the elephant spermatozoa. Additionally, manatee spermatozoa lacked the lateral vacuoles observed in the nuclear chromatin from of the hyrax spermatozoa. These data add to our understanding of manatees and allow for comparative studies with other species that may be useful in phylogenetic and reproductive studies. PMID:11534332

  6. First report of a Florida Manatee (Trichechus manatus latirostris) in Cuba

    Science.gov (United States)

    Alvarez-Aleman, Anmari; Beck, Cathy A.; Powell, James A.

    2010-01-01

    Manatees (Trichechus manatus latirostris) in Florida utilize intake and effluent canals of power plants as resting and thermoregulatory habitat. We report the use of a power plant canal in Cuba by a known Florida manatee, the first documented case of movement by a manatee between Florida and Cuba. In January, February, and April 2007, two manatees (mother and calf) were reported entering a power plant canal in north Havana, Cuba. The larger manatee had several distinctive scars which were photographed. Digital images were matched to a previously known Florida manatee (CR131) with a sighting history dating from December 1979 to July 2006. Exchanges of individuals between Florida and Cuba may have important genetic implications, particularly since there appears to be little genetic exchange between the Florida manatee subspecies with populations of the Antillean manatee subspecies (T. m. manatus) in Puerto Rico and the Dominican Republic.

  7. Conservative management of pneumothorax and pneumoperitoneum in two Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Gerlach, Trevor J; Sadler, Valerie M; Ball, Ray L

    2013-12-01

    Two distressed Florida manatees (Trichechus manatus latirostris) were reported to the Florida Fish and Wildlife Conservation Commission. The first animal was determined to be an abandoned, emaciated calf. The second animal was a nursing calf that had sustained watercraft-related trauma. Both animals were captured and transported to Tampa's Lowry Park Zoo, where diagnostic evaluations, including physical examinations, blood work, computed tomography (CT), and radiographs were performed. Radiograph and CT scans identified the presence of free air within the pleural and abdominal cavities of both animals. Based on the lack of substantial findings in the first animal and a rapid resolution of clinical signs in the second animal, both animals were managed conservatively. This report documents simultaneous pneumothorax and pneumoperitoneum, the associated clinical and diagnostic findings, and conservative medical management of these conditions in the Florida manatee. PMID:24450060

  8. PERMANENT GENETIC RESOURCES: Eighteen new polymorphic microsatellite markers for the endangered Florida manatee, Trichechus manatus latirostris.

    Science.gov (United States)

    Tringali, Michael D; Seyoum, Seifu; Carney, Susan L; Davis, Michelle C; Rodriguez-Lopez, Marta A; Reynolds Iii, John E; Haubold, Elsa

    2008-03-01

    Here we describe 18 polymorphic microsatellite loci for Trichechus manatus latirostris (Florida manatee), isolated using a polymerase chain reaction-based technique. The number of alleles at each locus ranged from two to four (mean = 2.5) in specimens from southwest (n = 58) and northeast (n = 58) Florida. Expected and observed heterozygosities ranged from 0.11 to 0.67 (mean = 0.35) and from 0.02 to 0.78 (mean = 0.34), respectively. Departures from Hardy-Weinberg equilibrium occurred at two loci. There was no evidence of genotypic disequilibrium for any pair of loci. For individual identification, mean random-mating and θ-corrected match probabilities were 9.36 × 10(-7) and 1.95 × 10(-6) , respectively. PMID:21585782

  9. CT scans and 3D reconstructions of Florida manatee (Trichechus manatus latirostris) heads and ear bones.

    Science.gov (United States)

    Chapla, Marie E; Nowacek, Douglas P; Rommel, Sentiel A; Sadler, Valerie M

    2007-06-01

    The auditory anatomy of the Florida manatee (Trichechus manatus latirostris) was investigated using computerized tomography (CT), three-dimensional reconstructions, and traditional dissection of heads removed during necropsy. The densities (kg/m3) of the soft tissues of the head were measured directly using the displacement method and those of the soft tissues and bone were calculated from CT measurements (Hounsfield units). The manatee's fatty tissue was significantly less dense than the other soft tissues within the head (p<0.05). The squamosal bone was significantly less dense than the other bones of the head (p<0.05). Measurements of the ear bones (tympanic, periotic, malleus, incus, and stapes) collected during dissection revealed that the ossicular chain was overly massive for the mass of the tympanoperiotic complex. PMID:17420106

  10. ESTABLISHMENT OF ECHOCARDIOGRAPHIC PARAMETERS OF CLINICALLY HEALTHY FLORIDA MANATEES (TRICHECHUS MANATUS LATIROSTRIS).

    Science.gov (United States)

    Gerlach, Trevor J; Estrada, Amara H; Sosa, Ivan S; Powell, Melanie; Lamb, Kenneth E; Ball, Ray L; de Wit, Martine; Walsh, Mike T

    2015-06-01

    A standardized echocardiographic technique was recently established for the Florida manatee (Trichechus manatus latirostris). There are no available published data on normal echocardiographic parameters in any Sirenian species. The purpose of this study was to report reference parameters for various echocardiographic measurements. These parameters are intended to serve as a comparison for future research into the prevalence of cardiac diseases in the manatee and to aid in diagnosing animals with suspected cardiac disease in rehabilitation facilities. Annual health assessments of free-ranging manatees in Crystal River National Wildlife Refuge, Florida, and pre-release health assessments of rehabilitated manatees at Tampa's Lowry Park Zoo permitted comparison of echocardiographic measurements in adult (n=14), subadult (n=7), and calf (n=8) animals under manual restraint. PMID:26056870

  11. REPRODUCTIVE NEOPLASMS IN WILD AND LONG-TERM CAPTIVE FEMALE FLORIDA MANATEES (TRICHECHUS MANATUS LATIROSTRIS).

    Science.gov (United States)

    Smith, Lauren N; Rotstein, David S; Ball, Ray L; Gerlach, Trevor J; Kinsel, Michael; Rodriguez, Maya; de Wit, Martine

    2015-12-01

    Few reports of neoplastic diseases in manatees exist in the veterinary literature. This case series presents reproductive neoplasia noted in eight wild and long-term captive female Florida manatees (Trichechus manatus latirostris) obtained through carcass recovery and animal rehabilitation programs between April 2009 and May 2014. All cases were evaluated histologically, and diagnoses of uterine carcinoma (n = 1), granulosa cell tumor (n = 2), ovarian adnexal tumor (n = 1), and leiomyoma (n = 5) were made. The underlying cause of tumor development and effects on reproductive success is currently unknown, but possible asymmetric reproductive aging and/or a correlation between obesity and reproductive disorder in long-term nonreproductive female manatees are of interest and warrant further investigation. PMID:26667547

  12. A first generation cytogenetic ideogram for the Florida manatee (Trichechus manatus latirostris) based on multiple chromosome banding techniques

    Science.gov (United States)

    Gray, B.A.; Zori, Roberto T.; McGuire, P.M.; Bonde, R.K.

    2002-01-01

    Detailed chromosome studies were conducted for the Florida manatee (Trichechus manatus latirostris) utilizing primary chromosome banding techniques (G- and Q-banding). Digital microscopic imaging methods were employed and a standard G-banded karyotype was constructed for both sexes. Based on chromosome banding patterns and measurements obtained in these studies, a standard karyotype and ideogram are proposed. Characterization of additional cytogenetic features of this species by supplemental chromosome banding techniques, C-banding (constitutive heterochromatin), Ag-NOR staining (nucleolar organizer regions), and DA/DAPI staining, was also performed. These studies provide detailed cytogenetic data for T. manatus latirostris, which could enhance future genetic mapping projects and interspecific and intraspecific genomic comparisons by techniques such as zoo-FISH.

  13. Report of a bite by the South American colubrid snake Philodryas olfersii latirostris (Squamata: Colubridae)

    OpenAIRE

    María Elisa Peichoto; Jorge Abel Céspedez; Juan Antonio Pascual

    2007-01-01

    Following the bite of Philodryas olfersii latirostris Cope, 1862, a 29-year-old male herpetologist developed localized and burning pain, and minimal bleeding from the puncture marks of posterior maxillary teeth, which subsided rapidly. The victim developed no other local signs or symptoms. After few days the victim presented persistent severe rotatory dizziness, nausea, and vomiting. On examination his hearing was normal. Neurological exam was otherwise normal. The patient had ...

  14. Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys) associated with wintering Florida manatees (Trichechus manatus latirostris)

    OpenAIRE

    Nico, Leo G.

    2010-01-01

    Several Pterygoplichthys species, members of the Neotropical catfish family Loricariidae, have been widely introduced outside their native ranges. In this paper, I present observations on the diel activity pattern of non-native Pterygoplichthys, tentatively identified as P. disjunctivus, with respect to their attachment and grazing on endangered Florida manatees, Trichechus manatus latirostris. The study was conducted in December 2009 at Volusia Blue Spring, an artesianal spring system in the...

  15. Evaluation of adrenocortical function in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Tripp, Kathleen M; Verstegen, John P; Deutsch, Charles J; Bonde, Robert K; de Wit, Martine; Manire, Charles A; Gaspard, Joseph; Harr, Kendal E

    2011-01-01

    The study objectives were to determine the predominant manatee glucocorticoid; validate assays to measure this glucocorticoid and adrenocorticotropic hormone (ACTH); determine diagnostic thresholds to distinguish physiological vs. pathological concentrations; identify differences associated with sex, age class, female reproductive status, capture time, and lactate; and determine the best methods for manatee biologists and clinicians to diagnose stress. Cortisol is the predominant manatee glucocorticoid. IMMULITE 1000 assays for cortisol and ACTH were validated. Precision yielded intra- and inter-assay coefficients of variation for serum cortisol: ≤23.5 and ≤16.7%; and ACTH: ≤6.9 and ≤8.5%. Accuracy resulted in a mean adjusted R(2)≥0.87 for serum cortisol and ≥0.96 for ACTH. Assay analytical sensitivities for cortisol (0.1 µg/dl) and ACTH (10.0 pg/ml) were verified. Methods were highly correlated with another IMMULITE 1000 for serum cortisol (r=0.97) and ACTH (r=0.98). There was no significant variation in cortisol or ACTH with sex or age class and no correlation with female progesterone concentrations. Cortisol concentrations were highest in unhealthy manatees, chronically stressed by disease or injury. ACTH was greatest in healthy free-ranging or short-term rehabilitating individuals, peracutely stressed by capture and handling. Cortisol concentrations ≥1.0 µg/dl were diagnostic of chronic stress; ACTH concentrations ≥87.5 pg/ml were diagnostic of peracute stress. In healthy long-term captive manatees, cortisol (0.4±0.2 µg/dl) and ACTH (47.7±15.9 pg/ml) concentrations were lower than healthy free-ranging, short-term rehabilitated or unhealthy manatees. Capture time was not significantly correlated with cortisol; ACTH correlation was borderline significant. Cortisol and ACTH were positively correlated with lactate. PMID:20187090

  16. Manatee cerebral cortex: cytoarchitecture of the frontal region in Trichechus manatus latirostris.

    Science.gov (United States)

    Reep, R L; Johnson, J I; Switzer, R C; Welker, W I

    1989-01-01

    Members of the order Sirenia are unique among mammals in being the only totally aquatic herbivores. They display correspondingly specialized physiological, behavioral and anatomical features. There have been few reports concerning sirenian neuroanatomy, and most of these have consisted of gross anatomical observations. Our interest in Sirenia stems from the desire to understand neuroanatomical specializations in the context of behavior and the effort to elucidate trends in mammalian brain evolution. The architecture of frontal regions of cerebral cortex was investigated in several brains of the Florida manatee, Trichechus manatus latirostris. Through observation of sections stained for Nissl substance or myelinated fibers, several distinct cortical areas were identified on the basis of laminar organization. These range from areas with poorly defined laminae to those having 6 well-defined layers, some of which exhibit sublayers. Two cortical areas exhibit pronounced cell clusters in layer VI, and these stain positively for acetylcholinesterase and cytochrome oxidase. We hypothesize that these clusters may be involved in perioral tactile bristle function. Certain of our findings are consistent with previous observations in the literature on the brains of dugongs. On the basis of their lamination patterns, these frontal cortical areas appear to be organized into concentric zones of allocortex, mesocortex and isocortex. PMID:2611642

  17. Vascular adaptations for heat conservation in the tail of Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Rommel, Sentiel A; Caplan, Heather

    2003-04-01

    Although Florida manatees (Trichechus manatus latirostris) have relatively low basal metabolic rates for aquatic mammals of their size, they maintain normal mammalian core temperatures. We describe vascular structures in the manatee tail that permit countercurrent heat exchange (CCHE) to conserve thermal energy. Approximately 1000 arteries juxtaposed to 2000 veins are found at the cranial end of the caudal vascular bundle (CVB); these numbers decrease caudally, but the 1:2 ratio of arteries to veins persists. Arterial walls are relatively thin when compared to those previously described in vascular countercurrent heat exchangers in cetaceans. It is assumed that CCHE in the CVB helps manatees to maintain core temperatures. Activity in warm water, however, mandates a mechanism that prevents elevated core temperatures. The tail could transfer heat to the environment if arterial blood delivered to the skin were warmer than the surrounding water; unfortunately, CCHE prevents this heat transfer. We describe deep caudal veins that provide a collateral venous return from the tail. This return, which is physically outside the CVB, reduces the venous volume within the bundle and allows arterial expansion and increased arterial supply to the skin, and thus helps prevent elevated core temperatures. PMID:12739612

  18. Characterization of kidney epithelial cells from the Florida manatee, Trichechus manatus latirostris.

    Science.gov (United States)

    Sweat JMDunigan, D D; Wright, S D

    2001-06-01

    The West-Indian manatee, Trichechus manatus latirostris, is a herbivorous marine mammal found in the coastal waters of Florida. Because of their endangered status, animal experimentation is not allowed. Therefore, a cell line was developed and characterized from tissue collected during necropsies of the manatees. A primary cell culture was established by isolating single cells from kidney tissue using both enzymatic and mechanical techniques. Primary manatee kidney (MK) cells were subcultured for characterization. These cells were morphologically similar to the cell lines of epithelial origin. An immunocytochemistry assay was used to localize the cytokeratin filaments common to cells of epithelial origin. At second passage, epithelial-like cells had an average population-doubling time of 48 h, had an optimum seeding density of 5 x 10(3) cells/cm2, and readily attached to plastic culture plates with a high level of seeding efficiency. Although the epithelial-like cells had a rapid growth rate during the first three passages, the cloning potential was low. These cells did not form colonies in agar medium, were serum dependent, had a limited life span of approximately nine passages, and possessed cell-contact inhibition. These data suggest that the cells were finite (noncontinuous growth), did not possess transformed properties, and were of epithelial origin. These cells are now referred to as MK epithelial cells. PMID:11515973

  19. Manatee cerebral cortex: cytoarchitecture of the caudal region in Trichechus manatus latirostris.

    Science.gov (United States)

    Marshall, C D; Reep, R L

    1995-01-01

    In several brains of the Florida manatee, Trichechus manatus latirostris, the architecture of caudal regions of cerebral cortex was examined in order to complete a map of cortical areas in the brain of this unique herbivore. Through observation of sections stained for Nissl substance, myelinated axons, acetylcholinesterase and cytochrome oxidase, we have identified 11 new cortical areas based on qualitative cytoarchitectural appearance and measurements of laminar thicknesses, for a total of 24 such cortical areas in manatee cerebral cortex. Some areas exhibit poorly differentiated laminae while in others there are 6 clearly demarcated layers, often with sublaminar organization. Some previously identified areas were found to extend into the region caudal to the vertically oriented lateral fissure. As in other mammalian brains, cortical areas in manatees are organized in concentric rings of allocortex, mesocortex, and isocortex. Putative functional roles have been assigned to most of the identified areas based on location, architecture, behavioral and anatomical considerations, and extrapolation from other taxa in which functional mapping has been done. PMID:7866767

  20. Gross and microscopic observations on the lingual structure of the Florida Manatee Trichechus manatus latirostris.

    Science.gov (United States)

    Levin, M J; Pfeiffer, C J

    2002-10-01

    The tongue of the Florida manatee (Trichechus manatus latirostris) was studied macroscopically, light and electron microscopically. The tongue was slender, muscular and firmly fixed in the oral cavity; only the cranial tip was free and mobile. Numerous filiform papillae were distributed over the dorsal surface of the rostral tongue. Multiple raised, round fungiform-like papillae were distributed over most of the dorsum. Typical fungiform papillae were restricted to the lateral margins of the tongue. Foliate papillae, presenting as multi-fossulate openings, were noted on the caudolateral margins. Open pits were located on the dorsocaudal surface and lateral walls. Microscopic examination showed that most of the lingual dorsum was covered with a thick stratified squamous epithelium. Open pits led to well-developed mucous salivary glands. Glands within the foliate papillae were mostly mucous, although some seromucous glands were present. Taste buds were restricted to the epithelium of the foliate papillae. Throughout the tongue, striated muscle was abundant below the epithelium. Blood vessels, lymph channels and nerve fibres were freely distributed throughout the intermuscular stroma. Nerve fibres reacted positively with neurone specific enolase (NSE) antibody throughout the tongue, including nerve bundles, glands and taste buds. Clear to translucent vacuoles were found juxtaposed to nuclei in the stratum spinosum in the foliate papillae epithelium. PMID:12484420

  1. Low-frequency vocalizations in the Florida manatee (Trichechus manatus latirostris)

    Science.gov (United States)

    Frisch, Katherine; Frisch, Stefan

    2003-10-01

    Vocalizations produced by Florida manatees (Trichechus manatus latirostris) have been characterized as being of relatively high frequency, with fundamental tones ranging from 2500-5000 Hz. These sounds have been variously described as squeaks, squeals, and chirps. Vocalizations below 500 Hz have not been previously reported. Two captive-born Florida manatees were recorded at Mote Marine Laboratory in Sarasota, Florida. The analysis of these vocalizations provides evidence of a new category of low-frequency sounds produced by manatees. These sounds are often heard in conjunction with higher-frequency vocalizations. The low-frequency vocalizations are relatively brief and of low amplitude. These vocalizations are perceived as a series of impulses rather than a low-frequency periodic tone. Knowledge of these low-frequency vocalizations could be useful to those developing future management strategies. Interest has recently increased in the development of acoustic detection and deterrence devices to reduce the number of manatee watercraft interactions. The design of appropriate devices must take into account the apparent ability of manatees to perceive and produce sounds of both high and low frequency. It is also important to consider the possibility that acoustic deterrence devices may disrupt the potentially communicative frequencies of manatee vocalizations.

  2. Electrocardiography in two subspecies of manatee (Trichechus manatus latirostris and T. m. manatus).

    Science.gov (United States)

    Siegal-Willott, Jessica; Estrada, Amara; Bonde, Robert; Wong, Arthur; Estrada, Daniel J; Harr, Kendal

    2006-12-01

    Electrocardiographic (ECG) measurements were recorded in two subspecies of awake, apparently healthy, wild manatees (Trichechus manatus latirostris and T. m. manatus) undergoing routine field examinations in Florida and Belize. Six unsedated juveniles (dependent and independent calves) and 6 adults were restrained in ventral recumbency for ECG measurements. Six lead ECGs were recorded for all manatees and the following parameters were determined: heart rate and rhythm; P, QRS, and T wave morphology, amplitude, and duration; and mean electrical axis (MEA). Statistical differences using a t-test for equality of means were determined. No statistical difference was seen based on sex or subspecies of manatees in the above measured criteria. Statistical differences existed in heart rate (P = 0.047), P wave duration (P = 0.019), PR interval (P = 0.025), and MEA (P = 0.021) between adult manatees and calves. Our findings revealed normal sinus rhythms, no detectable arrhythmias, prolonged PR and QT intervals, prolonged P wave duration, and small R wave amplitude as compared with cetacea and other marine mammals. This paper documents the techniques for and baseline recordings of ECGs in juvenile and adult free-living manatees. It also demonstrates that continual assessment of cardiac electrical activity in the awake manatee can be completed and can be used to aid veterinarians and biologists in routine health assessment, during procedures, and in detecting the presence of cardiac disease or dysfunction. PMID:17315428

  3. Ganglion cell distribution and retinal resolution in the Florida manatee, Trichechus manatus latirostris.

    Science.gov (United States)

    Mass, Alla M; Ketten, Darlene R; Odell, Daniel K; Supin, Alexander Ya

    2012-01-01

    The topographic organization of retinal ganglion cells was examined in the Florida manatee (Trichechus manatus latirostris) to assess ganglion cell size and distribution and to estimate retinal resolution. The ganglion cell layer of the manatee's retina was comprised primarily of large neurons with broad intercellular spaces. Cell sizes varied from 10 to 60 μm in diameter (mean 24.3 μm). The retinal wholemounts from adult animals measured 446-501 mm(2) in area with total ganglion cell counts of 62,000-81,800 (mean 70,200). The cell density changed across the retina, with the maximum in the area below the optic disc and decreasing toward the retinal edges and in the immediate vicinity of the optic disc. The maximum cell density ranged from 235 to 337 cells per millimeter square in the adult retinae. Two wholemounts obtained from juvenile animals were 271 and 282 mm(2) in area with total cell numbers of 70,900 and 68,700, respectively (mean 69,800), that is, nearly equivalent to those of adults, but juvenile retinae consequently had maximum cell densities that were higher than those of adults: 478 and 491 cells per millimeter square. Calculations indicate a retinal resolution of ∼19' (1.6 cycles per degree) in both adult and juvenile retinae. PMID:21964938

  4. Seroepidemiology of TmPV1 infection in captive and wild Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Donà, Maria Gabriella; Rehtanz, Manuela; Adimey, Nicole M; Bossart, Gregory D; Jenson, Alfred B; Bonde, Robert K; Ghim, Shin-je

    2011-07-01

    In 1997, cutaneous papillomatosis caused by Florida manatee (Trichechus manatus latirostris [Tm]) papillomavirus 1 (TmPV1) was detected in seven captive manatees at the Homosassa Springs Wildlife State Park, Florida, USA, and, subsequently, in two wild manatees from the adjacent Homosassa River. Since then, papillomatosis has been reported in captive manatees housed in other locations, but not in wild animals. To determine TmPV1 antibody prevalence in captive and wild manatees sampled at various locations throughout Florida coastal regions, virus-like particles, composed of the L1 capsid protein of TmPV1, were generated with a baculovirus expression system and used to measure anti-TmPV1 antibodies in an enzyme-linked immunosorbent assay. Serologic analysis of 156 manatees revealed a TmPV1 antibody prevalence of 26.3%, with no significant difference between captive (n=39) and wild (n=117) manatees (28.2% and 25.6%, respectively). No antibody-positive wild animal showed PV-induced cutaneous lesions, whereas papillomatosis was observed in 72.7% of antibody-positive captive manatees. Our data indicate that Florida manatees living in the wild are naturally infected by TmPV1 but rarely show TmPV1-induced papillomatosis. Hence, it appears that the wild population would not be harmed in a case of contact with captive animals without visible lesions and productive infections, which could be thus released into the wild. PMID:21719832

  5. Electrocardiography in two subspecies of manatee (Trichechus manatus latirostris and Trichechus manatus manatus)

    Science.gov (United States)

    Siegal-Willott, J.; Estrada, A.; Bonde, R.K.; Wong, A.; Estrada, D.J.; Harr, K.

    2006-01-01

    Electrocardiographic (ECG) measurements were recorded in two subspecies of awake, apparently healthy, wild manatees (Trichechus manatus latirostris and T. m. manatus) undergoing routine field examinations in Florida and Belize. Six unsedated juveniles (dependent and independent calves) and 6 adults were restrained in ventral recumbency for ECG measurements. Six lead ECGs were recorded for all manatees and the following parameters were determined: heart rate and rhythm; P, QRS, and T wave morphology, amplitude, and duration; and mean electrical axis (MEA). Statistical differences using a t-test for equality of means were determined. No statistical difference was seen based on sex or subspecies of manatees in the above measured criteria. Statistical differences existed in heart rate (P = 0.047), P wave duration (P = 0.019), PR interval (P = 0.025), and MEA (P = 0.021) between adult manatees and calves. Our findings revealed normal sinus rhythms, no detectable arrhythmias, prolonged PR and QT intervals, prolonged P wave duration, and small R wave amplitude as compared with cetacea and other marine mammals. This paper documents the techniques for and baseline recordings of ECGs in juvenile and adult free-living manatees. It also demonstrates that continual assessment of cardiac electrical activity in the awake manatee can be completed and can be used to aid veterinarians and biologists in routine health assessment, during procedures, and in detecting the presence of cardiac disease or dysfunction.

  6. Status and threats analysis for the Florida manatee (Trichechus manatus latirostris), 2012

    Science.gov (United States)

    Runge, Michael C.; Langtimm, Catherine A.; Martin, Julien; Fonnesbeck, Christopher J.

    2015-01-01

    The endangered West Indian manatee (Trichechus manatus), especially the Florida subspecies (T. m. latirostris), has been the focus of conservation efforts and extensive research since its listing under the Endangered Species Act. On the basis of the best information available as of December 2012, the threats facing the Florida manatee were determined to be less severe than previously thought, either because the conservation efforts have been successful, or because our knowledge of the demographic effects of those threats is increased, or both. Using the manatee Core Biological Model, we estimated the probability of the Florida manatee population on either the Atlantic or Gulf coast falling below 500 adults in the next 150 years to be 0.92 percent. The primary threats remain watercraft-related mortality and long-term loss of warm-water habitat. Since 2009, however, there have been a number of unusual events that have not yet been incorporated into this analysis, including several severely cold winters, a severe red-tide die off, and substantial loss of seagrass habitat in Brevard County, Fla. Further, the version of the Core Biological Model used in 2012 makes a number of assumptions that are under investigation. A revision of the Core Biological Model and an update of this quantitative threats analysis are underway as of 2015.

  7. Molecular characterization of novel mucosotropic papillomaviruses from a Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    2015-12-01

    We isolated two new manatee papillomavirus (PV) types, TmPV3 and TmPV4, from a Florida manatee (Trichechus manatus latirostris). Two PV types were previously isolated from this species. TmPV1 is widely dispersed amongst manatees and a close-to-root PV; not much is known about TmPV2. The genomes of TmPV3 and TmPV4 were 7622 and 7771 bp in size, respectively. Both PVs had a genomic organization characteristic of all PVs, with one non-coding region and seven ORFs, including the E7 ORF that is absent in other cetacean PVs. Although these PVs were isolated from separate genital lesions of the same manatee, an enlarged E2/E4 ORF was found only in the TmPV4 genome. The full genome and L1 sequence similarities between TmPV3 and TmPV4 were 63.2 and 70.3 %, respectively. These genomes shared only 49.1 and 50.2 % similarity with TmPV1. The pairwise alignment of L1 nucleotide sequences indicated that the two new PVs nested in a monophyletic group of the genus Rhopapillomavirus, together with the cutaneotropic TmPV1 and TmPV2. PMID:26395390

  8. Proximate nutrient analyses of four species of submerged aquatic vegetation consumed by Florida manatee (Trichechus manatus latirostris) compared to romaine lettuce (Lactuca sativa var. longifolia).

    Science.gov (United States)

    Siegal-Willott, Jessica L; Harr, Kendal; Hayek, Lee-Ann C; Scott, Karen C; Gerlach, Trevor; Sirois, Paul; Reuter, Mike; Crewz, David W; Hill, Richard C

    2010-12-01

    Free-ranging Florida manatees (Trichechus manatus latirostris) consume a variety of sea grasses and algae. This study compared the dry matter (DM) content, proximate nutrients (crude protein [CP], ether-extracted crude fat [EE], nonfiber carbohydrate [NFC], and ash), and the calculated digestible energy (DE) of sea grasses (Thalassia testudinum, Halodule wrightii, and Syringodium filiforme) collected in spring, summer, and winter, and an alga (Chara sp.) with those of romaine lettuce (Lactuca sativa var. longifolia). Neutral-detergent fiber (NDF), acid-detergent fiber (ADF), and lignin (L) measured after ash-extraction were also compared. Results of statistical tests (C = 0.01) revealed DM content was higher in aquatic vegetation than in lettuce (P = 0.0001), but NDF and ADF were up to threefold greater, EE (P = 0.00001) and CP (P = 0.00001) were 2-9 times less, and NFC (P = 0.0001) was 2-6 times lower in sea grass than in lettuce, on a DM basis. Chara was lower in NDF, ADF, L, EE, CP, and NFC relative to lettuce on a DM basis. Ash content (DM basis) was higher (P = 0.0001), and DE was 2-6 times lower in aquatic vegetation than in lettuce. Sea grass rhizomes had lower L and higher ash contents (DM basis) than sea grass leaves. Based on the nutrient analyses, romaine lettuce and sea grasses are not equivalent forages, which suggests that the current diet of captive Florida manatees should be reassessed. PMID:21370638

  9. Sexing sirenians: Validation of visual and molecular sex determination in both wild dugongs (Dugong dugon) and Florida manatees (Trichechus manatus latirostris)

    Science.gov (United States)

    Lanyon, J.M.; Sneath, H.L.; Ovenden, J.R.; Broderick, D.; Bonde, R.K.

    2009-01-01

    Sexing wild marine mammals that show little to no sexual dimorphism is challenging. For sirenians that are difficult to catch or approach closely, molecular sexing from tissue biopsies offers an alternative method to visual discrimination. This paper reports the results of a field study to validate the use of two sexing methods: (1) visual discrimination of sex vs (2) molecular sexing based on a multiplex PCR assay which amplifies the male-specific SRY gene and differentiates ZFX and ZFY gametologues. Skin samples from 628 dugongs (Dugong dugon) and 100 Florida manatees (Trichechus manatus latirostris) were analysed and assigned as male or female based on molecular sex. These individuals were also assigned a sex based on either direct observation of the genitalia and/or the association of the individual with a calf. Individuals of both species showed 93 to 96% congruence between visual and molecular sexing. For the remaining 4 to 7%, the discrepancies could be explained by human error. To mitigate this error rate, we recommend using both of these robust techniques, with routine inclusion of sex primers into microsatellite panels employed for identity, along with trained field observers and stringent sample handling.

  10. Sexing sirenians: validation of visual and molecular sex determination in both wild dugongs (Dugong dugon) and Florida manatees (Trichechus manatus latirostris). Aquatic Mammals 35(2):187-192.

    Science.gov (United States)

    Bonde, Robert K.; Lanyon, J.; Sneath, H.; Ovenden, J.; Broderick, D.

    2009-01-01

    Sexing wild marine mammals that show little to no sexual dimorphism is challenging. For sirenians that are difficult to catch or approach closely, molecular sexing from tissue biopsies offers an alternative method to visual discrimination. This paper reports the results of a field study to validate the use of two sexing methods: (1) visual discrimination of sex vs (2) molecular sexing based on a multiplex PCR assay which amplifies the male-specific SRY gene and differentiates ZFX and ZFY gametologues. Skin samples from 628 dugongs (Dugong dugon) and 100 Florida manatees (Trichechus manatus latirostris) were analysed and assigned as male or female based on molecular sex. These individuals were also assigned a sex based on either direct observation of the genitalia and/or the association of the individual with a calf. Individuals of both species showed 93 to 96% congruence between visual and molecular sexing. For the remaining 4 to 7%, the discrepancies could be explained by human error. To mitigate this error rate, we recommend using both of these robust techniques, with routine inclusion of sex primers into microsatellite panels employed for identity, along with trained field observers and stringent sample handling.

  11. Caracterización mineralógica de tobas zeolitizadas del yacimiento Caimanes para su beneficio por molienda diferencial

    Directory of Open Access Journals (Sweden)

    Juan M. Menéndez-Aguado

    2007-03-01

    Full Text Available Se caracterizaron mineralógicamente las tobas zeolitizadas del yacimiento Caimanes de la región de Moa, con vistas a beneficiar y concentrar las fases zeolíticas mediante la molienda diferencial. Se emplearon técnicas de difracción de rayos X, análisis químico, análisis térmicos, microscopía óptica y microscopía electrónica de barrido para determinar, en la muestra inicial, la composición mineralógica cualitativa y cuantificar las fases presentes, establecer la textura, el grado de intercrecimiento y el tamaño de los granos. El software AUTOQUAN permitió determinar cuantitativamente las fases minerales en las diferentes clases granulométricas. Mediante la molienda diferencial se logró un concentrado del 95 % de zeolitas y contenido de clinoptilolita del 72 % en las fracciones menores de 0,074 mm al emplear molienda en seco durante 5 minutos y clasificación granulométrica por vía húmeda.

  12. Riscos na qualidade sanitária da carne de jacaré da Amazônia Centra | Sanitary risk assessment for caiman meat quality in Central Amazon

    Directory of Open Access Journals (Sweden)

    Adriana Sotero-Martins

    2015-11-01

    production chain of wild populations. In Brazil, there are no protocols for this type of meat. The slaughter and processing were performed using a simplified, traditional floating raft system and a water treatment system that used both filtration and chemicals. The animals were caught using a hook, harpoon, resting pole, and cable snare. The wild caimans of two species (Melanosuchus niger and Caiman crocodilus were captured in the region of the Piagaçu-Purus Sustainable Development Reserve in Central Amazon during three harvesting events. After each event, we progressively improved the meat-processing protocol. Microbiological testing of the meat was performed as described in norms and Brazilian legislation for fish meat. As a result, we achieved improvements in the sanitary quality of the meat of the killed animals for 57%, 76.5% and 100% of the samples obtained during the first, second, and third harvesting events, respectively. There were significant differences in the microbiological quality of the meat, with a reduction in the disapproval of the samples. The process of capturing animals, the cable snare, and the restraining pole were the factors that least affected the quality of the meat; in addition, animals between 81 and 100 cm of CRC had a lower risk of microbiological contamination. We can conclude that health surveillance activities, such as hand hygiene when handling meat, improvements in water quality, selection of animals of the most appropriate size for slaughter, and capture by less invasive methods can reduce the potential for microbiological contamination of the meat contribute to decrease the potential for microbiological contamination of meat.

  13. ASPECTOS ULTRAESTRUTURALES DE TROMBOCITOS, EOSINOFILOS Y HETEROFILOS DE Caiman crocodilus yacare (Daudin, 1802 (Reptilia, Crocodilia ULTRASTRUCTURAL OBSERVATIONS OF THROMBOCYTES, HETEROPHILS AND EOSINOPHILS IN Caiman crocodilus yacare (Daudin, 1802 (Reptilia, Crocodilia

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    Weber Leal de Moura

    1997-01-01

    Full Text Available Fueron utilizados 10 ejemplares de Caiman crocodilus yacare provenientes del municipio de Cáceres (Estado de Mato Grosso do Sul, Brasil, a cada uno de los cuales les fueron extraidos 5ml de sangre periférica. Las muestras obtenidas fueron utilizadas para análisis ultraestructurales, referentes a trombocitos, eosinófilos y heterófilos. Los trombocitos son de forma elíptica, poseen citoplasma abundante sólo en los polos y su núcleo presenta surcos profundos o hendiduras acentuadas, mostrando algunos poros en su envoltura. Su citoplasma contiene abundantes túbulos y vesículas electrolúcidas del sistema canalicular. Son observados vacúolas con cuerpos densos y microtúbulos. Los heterófilos poseen formato aproximadamente esférico y núcleo excéntrico o periférico. Su citoplasma está repleto de gránulos polimórficos de formas de huso, en baqueta, oval o esférica, con superficie, en general, irregular. Los eosinófilos son esféricos y de núcleo lenticular excéntrico o periférico. El citoplasma contiene gránulos esféricos u ovales. Cabe destacar la presencia de gránulos citoplasmáticos voluminosos con diferencias en la electrodensidad, de superficie uniforme, pudiendo contener una estructura interna heterogénea. En heterófilos y eosinófilos, el núcleo presenta heterocromatina, eucromatina, nucléolo y la envoltura nuclear es porosaLittle information is available on the ultrastructural characteristics of the blood cells in reptiles. In the present study we have examined the fine structure of heterophils, eosinophils and thrombocytes from the blood of a crocodile (Caiman crocodilus yacare. Samples of peripheral blood from healthy young were collected with EDTA and centrifuged. The buff coat was collected and fixed in half strength Karnovsky solution. Spindl-eshaped thrombocytes showed large nuclei with prominent heterochromatin juxtaposed to the nuclear envelop. Cytoplasmic organelles were scarce: there were mitochondria

  14. Comparison of methods used to diagnose generalized inflammatory disease in manatees (Trichechus manatus latirostris).

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    Harr, Kendal; Harvey, John; Bonde, Robert; Murphy, David; Lowe, Mark; Menchaca, Maya; Haubold, Elsa; Francis-Floyd, Ruth

    2006-06-01

    Manatees (Trichechus manatus latirostris) are afflicted with inflammatory and infectious disease secondary to human interaction, such as boat strike and entanglement, as well as "cold stress syndrome" and pneumonia. White-blood-cell count and fever, primary indicators of systemic inflammation in most species, are insensitive in diagnosing inflammatory disease in manatees. Acute phase-response proteins, such as haptoglobin and serum amyloid A, have proven to be sensitive measures of inflammation/infection in domestic large animal species. This study assessed diagnosis of generalized inflammatory disease by different methods including total white-blood-cell count, albumin: globulin ratio, gel electrophoresis analysis, C-reactive protein, alpha, acid glycoprotein, haptoglobin, fibrinogen, and serum amyloid A. Samples were collected from 71 apparently healthy and 27 diseased animals during diagnostic medical examination. Serum amyloid A, measured by ELISA, followed by albumin:globulin ratio, measured by plasma gel electrophoresis, were most sensitive in diagnosing inflammatory disease, with diagnostic sensitivity and specificity of approximately 90%. The reference interval for serum amyloid A is <10-50 microg/ml with an equivocal interval of 51-70 microg/ml. The reference interval for albumin:globulin ratio by plasma gel electrophoresis is 0.7-1.1. Albumin: globulin ratio, calculated using biochemical techniques, was not accurate due to overestimation of albumin by bromcresol green dye-binding methodology. Albumin:globulin ratio, measured by serum gel electrophoresis, has a low sensitivity of 15% due to the lack of fibrinogen in the sample. Haptoglobin, measured by hemoglobin titration, had a reference interval of 0.4-2.4 mg/ml, a diagnostic sensitivity of 60%, and a diagnostic specificity of 93%. The haptoglobin assay is significantly affected by hemolysis. Fibrinogen, measured by heat precipitation, has a reference interval of 100-400 mg/dl, a diagnostic sensitivity

  15. Audiogram and auditory critical ratios of two Florida manatees (Trichechus manatus latirostris).

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    Gaspard, Joseph C; Bauer, Gordon B; Reep, Roger L; Dziuk, Kimberly; Cardwell, Adrienne; Read, Latoshia; Mann, David A

    2012-05-01

    Manatees inhabit turbid, shallow-water environments and have been shown to have poor visual acuity. Previous studies on hearing have demonstrated that manatees possess good hearing and sound localization abilities. The goals of this research were to determine the hearing abilities of two captive subjects and measure critical ratios to understand the capacity of manatees to detect tonal signals, such as manatee vocalizations, in the presence of noise. This study was also undertaken to better understand individual variability, which has been encountered during behavioral research with manatees. Two Florida manatees (Trichechus manatus latirostris) were tested in a go/no-go paradigm using a modified staircase method, with incorporated 'catch' trials at a 1:1 ratio, to assess their ability to detect single-frequency tonal stimuli. The behavioral audiograms indicated that the manatees' auditory frequency detection for tonal stimuli ranged from 0.25 to 90.5 kHz, with peak sensitivity extending from 8 to 32 kHz. Critical ratios, thresholds for tone detection in the presence of background masking noise, were determined with one-octave wide noise bands, 7-12 dB (spectrum level) above the thresholds determined for the audiogram under quiet conditions. Manatees appear to have quite low critical ratios, especially at 8 kHz, where the ratio was 18.3 dB for one manatee. This suggests that manatee hearing is sensitive in the presence of background noise and that they may have relatively narrow filters in the tested frequency range. PMID:22496279

  16. Topographical organization of the facial motor nucleus in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Marshall, Christopher D; Vaughn, Susan D; Sarko, Diana K; Reep, Roger L

    2007-01-01

    Florida manatees (Trichechus manatus latirostris) possess modified vibrissae that are used in conjunction with specialized perioral musculature to manipulate vegetation for ingestion, and aid in the tactile exploration of their environment. Therefore it is expected that manatees possess a large facial motor nucleus that exhibits a complex organization relative to other taxa. The topographical organization of the facial motor nucleus of five adult Florida manatees was analyzed using neuroanatomical methods. Cresyl violet and hematoxylin staining were used to localize the rostrocaudal extent of the facial motor nucleus as well as the organization and location of subdivisions within this nucleus. Differences in size, length, and organization of the facial motor nucleus among mammals correspond to the functional importance of the superficial facial muscles, including perioral musculature involved in the movement of mystacial vibrissae. The facial motor nucleus of Florida manatees was divided into seven subnuclei. The mean rostrocaudal length, width, and height of the entire Florida manatee facial motor nucleus was 6.6 mm (SD 8 0.51; range: 6.2-7.5 mm), 4.7 mm (SD 8 0.65; range: 4.0-5.6 mm), and 3.9 mm (SD 8 0.26; range: 3.5-4.2 mm), respectively. It is speculated that manatees could possess direct descending corticomotorneuron projections to the facial motornucleus. This conjecture is based on recent data for rodents, similiarities in the rodent and sirenian muscular-vibrissal complex, and the analogous nature of the sirenian cortical Rindenkerne system with the rodent barrel system. PMID:17595536

  17. Swimming kinematics of the Florida manatee (Trichechus manatus latirostris): hydrodynamic analysis of an undulatory mammalian swimmer.

    Science.gov (United States)

    Kojeszewski, Tricia; Fish, Frank E

    2007-07-01

    The submerged swimming of the Florida manatee (Trichechus manatus latirostris), a subspecies of the West Indian manatee, was studied by filming individuals as they swam rectilinearly in a large pool at several rehabilitation centers. The swimming was analyzed using videography to detail the kinematics in conjunction with a hydromechanical model to determine the power output (P(t)) and propulsive efficiency (eta(p)). Manatees swam at velocities of 0.06-1.14 m s(-1). Locomotion was accomplished by undulation of the body and caudal fluke. Undulatory locomotion is a rapid and relatively high-powered propulsive mode involved in cruising and migrating by a variety of swimmers. Manatees displayed an undulatory swimming mode by passing a dorso-ventrally oriented traveling wave posteriorly along the body. The propulsive wave traveled at a higher velocity than the forward velocity of the animal. The frequency of the propulsive cycle (f) increased linearly with increasing swimming velocity (U). Amplitude at the tip of the caudal fluke (A) remained constant with respect to U and was 22% of body length. P(t) increased curvilinearly with U. The mean eta(p), expressing the relationship of the thrust power generated by the paddle-shaped caudal fluke to the total mechanical power, was 0.73. The maximum eta(p) was 0.82 at 0.95 m s(-1). Despite use of a primitive undulatory swimming mode and paddle-like fluke for propulsion, the manatee is capable of swimming with a high efficiency but lower power outputs compared with the oscillatory movements of the high-aspect ratio flukes of cetaceans. The swimming performance of the manatee is in accordance with its habits as an aquatic grazer that seasonally migrates over extended distances. PMID:17601944

  18. ANÁLISE MICROBIOLÓGICA DA CARNE DE JACARÉ DO PANTANAL (Caiman crocodilus yacare MICROBIAL ANALYSIS CHARACTERISTICS OF THE ALLIGATOR'S MEAT (Caiman crocodilus yacare

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    Fernando Leite HOFFMANN

    1998-08-01

    Full Text Available O objetivo deste estudo foi realizar o levantamento das características microbiológicas da carne do jacaré, através da detecção e/ou enumeração dos microrganismos mais comumente encontrados na carne. Pela inexistência de padrões na legislação brasileira para a carne de jacaré, os resultados foram comparados com os padrões microbiológicos existentes para carne bovina e pescado. Encontrou-se a presença de S. aureus e de Salmonella sp, resultados estes considerados insatisfatórios, o que nos permitiu, classificar o produto como impróprio para o consumo. O trabalho sugere também, procedimentos para evitar e/ou minimizar a presença desses microrganismos indesejáveis na carne.This work subjects to collect data of the microbial characteristics of the alligator meat, and also to identify the microrganisms that can be found in it. The current Brazilian legislation does not have any specific regulations for the alligator meat, then the results were compaired to the microbial standards for the fresh beef and fish. The results has showed the presence of the S. aureus and Salmonella sp. These results let us to classify the product submited to the test, as unsatisfactory and, therefore, inadequate to the human consumption. The present study also suggests some procedures to avoid or minimize the presence of these microrganisms.

  19. Caiman crocodilus yacare in Controlled Experiment: Statistical Confirmation of its Contribution to the Balance of Nutrients in an Aquatic Ecosystem of Mato-Grossense Pantanal, Brazil

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    Adelson Joel da Silva

    2010-04-01

    Full Text Available This study has like purpose to confirm, statistically, through controlled experiments the contribution of Caiman crocodilus yacare for the nutrient cycling of the lake Baía das pedras, Pantanal de Poconé - MT. Studies with this focus, beginnings only on 90’s endings, on the lake, during dry phase were counted about 1000 individuals of Caiman crocodilus yacare on only 20.800 m2. On this period the productivity of the lake is very high in relation to high water period, when the water became transparent, being that the Caymans develop on that time a very important role. It was used for the experiment a captivity of 8x6 m, with only one exit for water. In the center of the captivity there is a pool with 4x2 m width and 30 cm of depth. The animal was putted after the stabilization of the limnological variables inside of the pool. It were collected 6 samples of water, being three before and three after of the presence of the Cayman. The Cayman with 2,18 m size, with 57,8 kg was feed every day, Just after the limnologicals determinations, with fresh fish of specie Prochilodus lineatus (including visceral parts. It were realized total nitrogen and phosphorous analyzes, ammonium, nitrate, nitrite and orthophosphate of the water collected from the pool. It was verified the important role of Cayman crocodilus yacare in the experiment and in the region where it leaves.

  20. Estimates of annual survival probabilities for adult Florida manatees (Trichechus manatus latirostris)

    Science.gov (United States)

    Langtimm, C.A.; O'Shea, T.J.; Pradel, R.; Beck, C.A.

    1998-01-01

    The population dynamics of large, long-lived mammals are particularly sensitive to changes in adult survival. Understanding factors affecting survival patterns is therefore critical for developing and testing theories of population dynamics and for developing management strategies aimed at preventing declines or extinction in such taxa. Few studies have used modern analytical approaches for analyzing variation and testing hypotheses about survival probabilities in large mammals. This paper reports a detailed analysis of annual adult survival in the Florida manatee (Trichechus manatus latirostris), an endangered marine mammal, based on a mark-recapture approach. Natural and boat-inflicted scars distinctively 'marked' individual manatees that were cataloged in a computer-based photographic system. Photo-documented resightings provided 'recaptures.' Using open population models, annual adult-survival probabilities were estimated for manatees observed in winter in three areas of Florida: Blue Spring, Crystal River, and the Atlantic coast. After using goodness-of-fit tests in Program RELEASE to search for violations of the assumptions of mark-recapture analysis, survival and sighting probabilities were modeled under several different biological hypotheses with Program SURGE. Estimates of mean annual probability of sighting varied from 0.948 for Blue Spring to 0.737 for Crystal River and 0.507 for the Atlantic coast. At Crystal River and Blue Spring, annual survival probabilities were best estimated as constant over the study period at 0.96 (95% CI = 0.951-0.975 and 0.900-0.985, respectively). On the Atlantic coast, where manatees are impacted more by human activities, annual survival probabilities had a significantly lower mean estimate of 0.91 (95% CI = 0.887-0.926) and varied unpredictably over the study period. For each study area, survival did not differ between sexes and was independent of relative adult age. The high constant adult-survival probabilities estimated

  1. Neuron Types in the Presumptive Primary Somatosensory Cortex of the Florida Manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Reyes, Laura D; Stimpson, Cheryl D; Gupta, Kanika; Raghanti, Mary Ann; Hof, Patrick R; Reep, Roger L; Sherwood, Chet C

    2015-01-01

    Within afrotherians, sirenians are unusual due to their aquatic lifestyle, large body size and relatively large lissencephalic brain. However, little is known about the neuron type distributions of the cerebral cortex in sirenians within the context of other afrotherians and aquatic mammals. The present study investigated two cortical regions, dorsolateral cortex area 1 (DL1) and cluster cortex area 2 (CL2), in the presumptive primary somatosensory cortex (S1) in Florida manatees (Trichechus manatus latirostris) to characterize cyto- and chemoarchitecture. The mean neuron density for both cortical regions was 35,617 neurons/mm(3) and fell within the 95% prediction intervals relative to brain mass based on a reference group of afrotherians and xenarthrans. Densities of inhibitory interneuron subtypes labeled against calcium-binding proteins and neuropeptide Y were relatively low compared to afrotherians and xenarthrans and also formed a small percentage of the overall population of inhibitory interneurons as revealed by GAD67 immunoreactivity. Nonphosphorylated neurofilament protein-immunoreactive (NPNFP-ir) neurons comprised a mean of 60% of neurons in layer V across DL1 and CL2. DL1 contained a higher percentage of NPNFP-ir neurons than CL2, although CL2 had a higher variety of morphological types. The mean percentage of NPNFP-ir neurons in the two regions of the presumptive S1 were low compared to other afrotherians and xenarthrans but were within the 95% prediction intervals relative to brain mass, and their morphologies were comparable to those found in other afrotherians and xenarthrans. Although this specific pattern of neuron types and densities sets the manatee apart from other afrotherians and xenarthrans, the manatee isocortex does not appear to be explicitly adapted for an aquatic habitat. Many of the features that are shared between manatees and cetaceans are also shared with a diverse array of terrestrial mammals and likely represent highly conserved

  2. Expression profiling without genome sequence information in a non-model species, Pandalid shrimp (Pandalus latirostris), by next-generation sequencing.

    Science.gov (United States)

    Kawahara-Miki, Ryouka; Wada, Kenta; Azuma, Noriko; Chiba, Susumu

    2011-01-01

    While the study of phenotypic variation is a central theme in evolutionary biology, the genetic approaches available to understanding this variation are usually limited because of a lack of genomic information in non-model organisms. This study explored the utility of next-generation sequencing (NGS) technologies for studying phenotypic variations between 2 populations of a non-model species, the Hokkai shrimp (Pandalus latirostris; Decapoda, Pandalidae). Before we performed transcriptome analyses using NGS, we examined the genetic and phenotypic differentiation between the populations. Analyses using microsatellite DNA markers suggested that these populations genetically differed from one another and that gene flow is restricted between them. Moreover, the results of our 4-year field observations indicated that the egg traits varied genetically between the populations. Using mRNA extracted from the ovaries of 5 females in each population of Hokkai shrimp, we then performed a transcriptome analysis of the 2 populations. A total of 13.66 gigabases (Gb) of 75-bp reads was obtained. Further, 58,804 and 33,548 contigs for the first and second population, respectively, and 47,467 contigs for both populations were produced by de novo assembly. We detected 552 sequences with the former approach and 702 sequences with the later one; both sets of sequences showed greater than twofold differences in the expression levels between the 2 populations. Twenty-nine sequences were found in both approaches and were considered to be differentially expressed genes. Among them, 9 sequences showed significant similarity to functional genes. The present study showed a de novo assembly approach for the transcriptome of a non-model species using only short-read sequence data, and provides a strategy for identifying sequences showing significantly different expression levels between populations. PMID:22016807

  3. Expression profiling without genome sequence information in a non-model species, Pandalid shrimp (Pandalus latirostris, by next-generation sequencing.

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    Ryouka Kawahara-Miki

    Full Text Available While the study of phenotypic variation is a central theme in evolutionary biology, the genetic approaches available to understanding this variation are usually limited because of a lack of genomic information in non-model organisms. This study explored the utility of next-generation sequencing (NGS technologies for studying phenotypic variations between 2 populations of a non-model species, the Hokkai shrimp (Pandalus latirostris; Decapoda, Pandalidae. Before we performed transcriptome analyses using NGS, we examined the genetic and phenotypic differentiation between the populations. Analyses using microsatellite DNA markers suggested that these populations genetically differed from one another and that gene flow is restricted between them. Moreover, the results of our 4-year field observations indicated that the egg traits varied genetically between the populations. Using mRNA extracted from the ovaries of 5 females in each population of Hokkai shrimp, we then performed a transcriptome analysis of the 2 populations. A total of 13.66 gigabases (Gb of 75-bp reads was obtained. Further, 58,804 and 33,548 contigs for the first and second population, respectively, and 47,467 contigs for both populations were produced by de novo assembly. We detected 552 sequences with the former approach and 702 sequences with the later one; both sets of sequences showed greater than twofold differences in the expression levels between the 2 populations. Twenty-nine sequences were found in both approaches and were considered to be differentially expressed genes. Among them, 9 sequences showed significant similarity to functional genes. The present study showed a de novo assembly approach for the transcriptome of a non-model species using only short-read sequence data, and provides a strategy for identifying sequences showing significantly different expression levels between populations.

  4. Nature conservation on agricultural land: a case study of the endangered Carnaby’s Cockatoo Calyptorhynchus latirostris breeding at Koobabbie in the northern wheatbelt of Western Australia

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    Denis Saunders

    2014-12-01

    Full Text Available Nature conservation and agricultural production may be considered as conflicting objectives, but for a wheat and sheep property in Western Australia they have been pivotal management objectives for the last 48 years. Koobabbie, a 7,173 ha property, has retained 41.5% of the original native vegetation, and is a designated Important Bird Area by BirdLife Australia, while still being an economically profitable agricultural enterprise. Since 1987 the owners of Koobabbie have kept detailed records of the avifauna of the property, and encouraged staff from government, non-government and academic organisations to conduct research and monitoring of the endangered Carnaby’s Cockatoo Calyptorhynchus latirostris breeding on their property. In addition, they have instituted control programs for two over-abundant cockatoo species which compete with Carnaby’s Cockatoo for nest sites, and for Feral Cats that are predators of nesting female Carnaby’s Cockatoo and their offspring. This paper presents the results of research and monitoring from 2003-2013, during which seven artificial nesting hollows were erected, and former active nest hollows that had become derelict were repaired. By 2008, the number of breeding pairs on the property was at least 27, but two mass deaths of breeding females in 2009 and 2012 reduced the number of breeding pairs by 80%. This study illustrates the importance of monitoring conservation on private property, and raises a number of issues in relation to management of endangered species dependent on large hollow-bearing trees on private property.

  5. Photogeneration of superoxide radicals by ommochromes and their role in antioxidative protection of invertebrate ocular cells. [Pandalus latirostris, Calopteryx splendens

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    Dontsov, A.E.; Lapina, V.A.; Sotrovskiy, M.A.

    Biochemical studies with ommochromes isolated from the eyes of Pandalus latirostris and Calopteryx splendens were found capable of generating superoxide radicals under influence of UV or visible light. Formation of the superoxide radicals was markedly accelerated by detergents (cetyltrimethylammonium bromide), and inhibited by superoxide dismutase. In addition, the ommochromes were found to inhibit lipid peroxidation initiated by Fe/sup + +/. It appears that the ommochromes may have a significant function to antioxidative protection of eye cells in invertebrates, since the reduced ommochromes are efficient in inhibiting lipid peroxidation. The latter reaction may be related to accelerated dismutation of the superoxide radicals. The structural similarity between phenoxazine and the ommochromes suggests that the latter may undergo reduction under light, since the reduced form promotes photogeneration of the superoxide radical. 15 references, 6 figures.

  6. Interactions between non-native armored suckermouth catfish (Loricariidae: Pterygoplichthys) and native Florida manatee (Trichechus manatus latirostris) in artesian springs

    Science.gov (United States)

    Nico, Leo G.; Loftus, William F.; Reid, James P.

    2009-01-01

    Non-native suckermouth armored catfishes (Loricariidae) of the genus Pterygoplichthys are now common throughout much of peninsular Florida. In this paper, we present preliminary observations on interactions between a Pterygoplichthys species, tentatively identified as P. disjunctivus (Weber, 1991), and endangered native Florida manatees, Trichechus manatus latirostris (Harlan, 1824), in artesian spring systems in Florida's St. Johns River drainage. The introduced catfish have become abundant in spring habitats, sites used by manatees as winter thermal refuges. In the spring runs, Pterygoplichthys regularly attaches to manatees and grazes the epibiota on their skin. On occasion, dozens of Pterygoplichthys congregate on individual manatees. Manatee responses varied widely; some did not react visibly to attached catfish whereas others appeared agitated and attempted to dislodge the fish. The costs and/or benefits of this interaction to manatees remain unclear.

  7. Evaluación sensorial de derivados cárnicos de carne de babilla (Caiman crocodilus crocodilus

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    William Raúl Mayorga Rodríguez

    2010-01-01

    Full Text Available El objetivo de este trabajo fue analizar sensorialmente dos productos cárnicos (jamón de alta inyección y costillas ahumadas elaborados con base en carne de babilla (Caiman crocodilus crocodilus. Se utilizaron 21 animales con tallas entre los 90 y 120 cm de largo, los cuales procedían del Zoocriadero Santa Ana, situado en la ciudad de Villavicencio, Meta, Colombia. El análisis proximal (% grasa, % humedad, % proteína de los productos cárnicos elaborados fue realizado en el Laboratorio de Nutrición de la Facultad de Medicina Veterinaria y de Zootecnia de la Universidad Nacional de Colombia para confirmar su clasificación como Categoría Premium según la Norma Técnica Colombiana 1325, quinta actualización (ICONTEC, 2008. Se realizaron paneles de aceptación con visitantes ocasionales en el Centro Agroindustrial del Servicio Nacional de Aprendizaje del Meta (sede Hachón, en la Feria Agroindustrial de Catama y almacenes Éxito, sucursal Sabana; todos en Villavicencio, Meta, Colombia; completando un total de 400 evaluaciones tanto de jamón como de costillas ahumadas. Se aplicó estadística descriptiva para establecer el grado de aceptación para lo cual se establecieron cuatro niveles de aprobación posible en que se podían clasificar los productos, siendo estos niveles determinados por características como color, textura, sabor y olor. El jamón y las costillas ahumadas elaboradas con carne de babilla presentaron altos niveles de aceptación para las características de textura, sabor y olor a diferencia del color, lo cual se atribuyó al color pálido característico de la carne de babilla que contrasta con el color típico de los productos cárnicos de res y de cerdo, el cual es asociado normalmente por el consumidor a productos cárnicos con atributos de frescura y salubridad. Los valores de aceptación tanto para jamón de babilla como para costillas ahumadas de babilla fueron del 99 %.

  8. Evaluación sensorial de derivados cárnicos de carne de babilla (Caiman crocodilus crocodilus

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Alarcón García

    2010-12-01

    Full Text Available El objetivo de este trabajo fue analizar sensorialmente dos productos cárnicos (jamón de alta inyección y costillas ahumadas elaborados con base en carne de babilla (Caiman crocodilus crocodilus. Se utilizaron 21 animales con tallas entre los 90 y 120 cm de largo, los cuales procedían del Zoocriadero Santa Ana, situado en la ciudad de Villavicencio, Meta, Colombia. El análisis proximal (% grasa, % humedad, % proteína de los productos cárnicos elaborados fue realizado en el Laboratorio de Nutrición de la Facultad de Medicina Veterinaria y de Zootecnia de la Universidad Nacional de Colombia para confirmar su clasificación como Categoría Premium según la Norma Técnica Colombiana 1325, quinta actualización (ICONTEC, 2008. Se realizaron paneles de aceptación con visitantes ocasionales en el Centro Agroindustrial del Servicio Nacional de Aprendizaje del Meta (sede Hachón, en la Feria Agroindustrial de Catama y almacenes Éxito, sucursal Sabana; todos en Villavicencio, Meta, Colombia; completando un total de 400 evaluaciones tanto de jamón como de costillas ahumadas. Se aplicó estadística descriptiva para establecer el grado de aceptación para lo cual se establecieron cuatro niveles de aprobación posible en que se podían clasificar los productos, siendo estos niveles determinados por características como color, textura, sabor y olor. El jamón y las costillas ahumadas elaboradas con carne de babilla presentaron altos niveles de aceptación para las características de textura, sabor y olor a diferencia del color, lo cual se atribuyó al color pálido característico de la carne de babilla que contrasta con el color típico de los productos cárnicos de res y de cerdo, el cual es asociado normalmente por el consumidor a productos cárnicos con atributos de frescura y salubridad. Los valores de aceptación tanto para jamón de babilla como para costillas ahumadas de babilla fueron del 99 %.

  9. Characterization of a novel close-to-root papillomavirus from a Florida manatee by using multiply primed rolling-circle amplification: Trichechus manatus latirostris papillomavirus type 1.

    Science.gov (United States)

    Rector, Annabel; Bossart, Gregory D; Ghim, Shin-Je; Sundberg, John P; Jenson, A Bennett; Van Ranst, Marc

    2004-11-01

    By using an isothermal multiply primed rolling-circle amplification protocol, the complete genomic DNA of a novel papillomavirus was amplified from a skin lesion biopsy of a Florida manatee (Trichechus manatus latirostris), one of the most endangered marine mammals in United States coastal waters. The nucleotide sequence, genome organization, and phylogenetic position of the Trichechus manatus latirostris papillomavirus type 1 (TmPV-1) were determined. TmPV-1 is the first virus isolated from the order of Sirenia. A phylogenetic analysis shows that TmPV-1 is only distantly related to other papillomavirus sequences, and it appears in our phylogenetic tree as a novel close-to-root papillomavirus genus. PMID:15507660

  10. Expression profiling without genome sequence information in a non-model species, pandalid shrimp (Pandalus latirostris), by next-generation sequencing

    OpenAIRE

    Kawahara-Miki, Ryouka; Wada, Kenta; Azuma, Noriko; Chiba, Susumu

    2011-01-01

    While the study of phenotypic variation is a central theme in evolutionary biology, the genetic approaches available to understanding this variation are usually limited because of a lack of genomic information in non-model organisms. This study explored the utility of next-generation sequencing (NGS) technologies for studying phenotypic variations between 2 populations of a non-model species, the Hokkai shrimp (Pandalus latirostris; Decapoda, Pandalidae). Before we performed transcriptome ana...

  11. Expression Profiling without Genome Sequence Information in a Non-Model Species, Pandalid Shrimp (Pandalus latirostris), by Next-Generation Sequencing

    OpenAIRE

    Kawahara-Miki, Ryouka; Wada, Kenta; Azuma, Noriko; Chiba, Susumu

    2011-01-01

    While the study of phenotypic variation is a central theme in evolutionary biology, the genetic approaches available to understanding this variation are usually limited because of a lack of genomic information in non-model organisms. This study explored the utility of next-generation sequencing (NGS) technologies for studying phenotypic variations between 2 populations of a non-model species, the Hokkai shrimp (Pandalus latirostris; Decapoda, Pandalidae). Before we performed transcriptome ana...

  12. Estudo do aproveitamento das vísceras do jacaré do pantanal (Caiman crocodilus yacare em farinha de carne Study of the utilization of the pantanal alligator's viscera for meat flour

    Directory of Open Access Journals (Sweden)

    Pedro Fernando Romanelli

    2003-12-01

    Full Text Available O presente trabalho teve por objetivo a produção de farinha de carne a partir das vísceras do jacaré do pantanal (Caiman crocodilus yacare e o estudo das propriedades físico-químicas, bioquímicas e bacteriológicas da farinha elaborada. Essas características que servem de parâmetro de controle de qualidade, são normalmente exigidas na comercialização de farinhas de carne elaboradas a partir de vísceras e outros materiais de descarte para animais de consumo doméstico. Os resultados obtidos do pH, acidez solúvel, composição percentual dos componentes, dos minerais Ca e P, digestibilidade em pepsina, aspecto microbiológico (presença de "salmonela" e estabilidade avaliada pelo nº de TBARS da farinha mostram ser viável o uso das vísceras do jacaré do pantanal como fonte alternativa de nutrientes para incorporação nas formulações de ração animal .The present paper shidied study the production of the meat flour from the pantanal alligator's viscera as well as the physic-chemical, biochemical and microbiological proprieties of the obtained flour. These proprieties can be parameters of quality control and are normally demanded in the trade of meat flour made from viscera and other discharge animals for domestic use.The results obtained from pH, soluble acidity, components percentual composition, Ca and P minerals, digestibility in pepsin, the microbiological aspect (salmonella determination, and the stability to the meat flour according to the evaluation of the number of TBARS, demonstrate the use of the viscera of the pantanal alligator are feasible as alternate source of nutrients for the incorporation in the formulating of animal feed.

  13. Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys associated with wintering Florida manatees (Trichechus manatus latirostris

    Directory of Open Access Journals (Sweden)

    Leo G. Nico

    2010-01-01

    Full Text Available Several Pterygoplichthys species, members of the Neotropical catfish family Loricariidae, have been widely introduced outside their native ranges. In this paper, I present observations on the diel activity pattern of non-native Pterygoplichthys, tentatively identified as P. disjunctivus, with respect to their attachment and grazing on endangered Florida manatees, Trichechus manatus latirostris. The study was conducted in December 2009 at Volusia Blue Spring, an artesianal spring system in the St. Johns River basin, Florida (USA. Supplemented by information gathered during previous visits to the spring site, this study revealed that adult Pterygoplichthys are active throughout the diel period (day, twilight and night. However, juvenile Pterygoplichthys were largely nocturnal and only at night did they consistently join adults in attaching to manatees. The juveniles generally remain hidden during the day, probably responding to presence of diurnal predators, mainly birds. Differences in diel behaviors among different Pterygoplichthys size classes in Florida are consistent with published observations on loricariids inhabiting clearwater streams within their native ranges.Várias espécies de Pterygoplichthys, siluriformes Neotropicais da família Loricariidae, tem sido largamente introduzidos além de suas áreas naturais de ocorrência. Neste artigo, eu apresento observações dos padrões de atividade diária de uma população não nativa de Pterygoplichthys, identificada tentativamente como P. disjunctivus, associados com a espécie ameaçada de peixe-boi nativa da Flórida, Trichechus manatus latirostris. O estudo foi conduzido em dezembro de 2009 em Volusia Blue Spring um sistema artesiano na bacia do rio St. John, Flórida (USA. Suplementado por informações reunidas durante visitas prévias ao sítio em análise, este estudo revelou que Pterygoplichthys adultos estiveram ativos durante a maioria dos períodos (dia, crepúsculo e noite. No

  14. Morphometry, Bite-Force, and Paleobiology of the Late Miocene Caiman Purussaurus brasiliensis

    Science.gov (United States)

    Aureliano, Tito; Ghilardi, Aline M.; Guilherme, Edson; Souza-Filho, Jonas P.; Cavalcanti, Mauro; Riff, Douglas

    2015-01-01

    Purussaurus brasiliensis thrived in the northwestern portion of South America during the Late Miocene. Although substantial material has been recovered since its early discovery, this fossil crocodilian can still be considered as very poorly understood. In the present work, we used regression equations based on modern crocodilians to present novel details about the morphometry, bite-force and paleobiology of this species. According to our results, an adult Purussaurus brasiliensis was estimated to reach around 12.5 m in length, weighing around 8.4 metric tons, with a mean daily food intake of 40.6 kg. It was capable of generating sustained bite forces of 69,000 N (around 7 metric tons-force). The extreme size and strength reached by this animal seems to have allowed it to include a wide range of prey in its diet, making it a top predator in its ecosystem. As an adult, it would have preyed upon large to very large vertebrates, and, being unmatched by any other carnivore, it avoided competition. The evolution of a large body size granted P. brasiliensis many advantages, but it may also have led to its vulnerability. The constantly changing environment on a large geological scale may have reduced its long-term survival, favoring smaller species more resilient to ecological shifts. PMID:25689140

  15. Morphometry, bite-force, and paleobiology of the late miocene caiman Purussaurus brasiliensis.

    Directory of Open Access Journals (Sweden)

    Tito Aureliano

    Full Text Available Purussaurus brasiliensis thrived in the northwestern portion of South America during the Late Miocene. Although substantial material has been recovered since its early discovery, this fossil crocodilian can still be considered as very poorly understood. In the present work, we used regression equations based on modern crocodilians to present novel details about the morphometry, bite-force and paleobiology of this species. According to our results, an adult Purussaurus brasiliensis was estimated to reach around 12.5 m in length, weighing around 8.4 metric tons, with a mean daily food intake of 40.6 kg. It was capable of generating sustained bite forces of 69,000 N (around 7 metric tons-force. The extreme size and strength reached by this animal seems to have allowed it to include a wide range of prey in its diet, making it a top predator in its ecosystem. As an adult, it would have preyed upon large to very large vertebrates, and, being unmatched by any other carnivore, it avoided competition. The evolution of a large body size granted P. brasiliensis many advantages, but it may also have led to its vulnerability. The constantly changing environment on a large geological scale may have reduced its long-term survival, favoring smaller species more resilient to ecological shifts.

  16. Characterization of surface interleukin-2 receptor expression on gated populations of peripheral blood mononuclear cells from manatees, Trichechus manatus latirostris.

    Science.gov (United States)

    Sweat, J M; Johnson, C M; Marikar, Y; Gibbs, E P

    2005-12-15

    An in vitro system to determine surface interleukin-2 receptor (IL-2R) expression on mitogen-stimulated peripheral blood mononuclear cells (PBMC) from free-ranging manatees, Trichechus manatus latirostris was developed. Human recombinant IL-2, conjugated with a fluorescein dye was used in conjunction with flow cytometric analysis to determine changes in surface expression of IL-2R at sequential times over a 48-h period of in vitro stimulation. Surface expression of IL-2R was detected on manatee PBMC, which also cross-reacted with an anti-feline pan T-cell marker. An expression index (EI) was calculated by comparing mitogen-activated and non-activated PBMC. Based on side- and forward-scatter properties, flow cytometric analysis showed an increase in the number of larger, more granular "lymphoblasts" following concanavalin A (Con A) stimulation. The appearance of lymphoblasts was correlated with an increase in their surface expression of IL-2 receptors. Surface IL-2R expression, in Con A-stimulated PBMC, was detected at 16 h, peaked at 24-36 h, and began to decrease by 48 h. Characterization of the IL-2R expression should provide additional information on the health status of manatees, and the effect of their sub lethal exposure to brevetoxin. PMID:16112745

  17. Composition of the milks of the bottlenose dolphin (Tursiops trucatus) and the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Pervaiz, S; Brew, K

    1986-01-01

    Milk samples from four individual bottlenose (Tursiops truncatus) and two Florida manatees (Trichechus manatus latirostris) of known lactation stages were analyzed for protein, carbohydrate and lipid composition, as well as for activity levels of alpha-lactalbumin, the regulatory protein of lactose synthase. The milk from both species had relatively high protein and lipid levels, as reported previously for other marine mammals. The major proportion of the lipid was in the form of triglycerides. Dolphin milk contained an average of 2.2% neutral sugars, which was essentially all in the form of lactose, as determined by several criteria. Manatee milk samples contained 0.6% of neutral sugars, and a larger proportion (about 2%) of amino sugars. Lactose was not detected by enzymatic assay or paper chromatography, but HPLC analysis indicated the presence of low levels of lactose together with two components that were tentatively identified as oligosaccharides. alpha-Lactalbumin activity, determined by assay with bovine galactosyltransferase, was found in both dolphin and manatee milk. The level in dolphin milk was comparable with that found in bovine and other milk, but the level in the manatee was less than 10% of that in the dolphin. PMID:2873935

  18. Functional morphology of venous structures associated with the male and female reproductive systems in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Rommel, S A; Pabst, D A; McLellan, W A

    2001-12-01

    The reproductive organs of Florida manatees (Trichechus manatus latirostris) are surrounded by thermogenic locomotory muscles and insulating fat. Manatees are reported to maintain core body temperatures of 35.6 degrees -36.4 degrees C, temperatures known to interfere with production and maturation of viable sperm in terrestrial mammals. We describe two novel venous plexuses associated with the manatee epididymis. Each epididymis is located in a hypogastric fossa at the caudolateral extremity of the abdominal cavity. Each hypogastric fossa is lined by an inguinal venous plexus that receives cooled blood from a superficial thoracocaudal plexus. We conclude that male manatees may prevent hyperthermic insult to their reproductive tissues by feeding cooled superficial blood to venous plexuses deep within their bodies. Female manatees also possess hypogastric fossae and venous structures similar to those found in male manatees. The ovaries, uterine tubes, and distal tips of the uterine horns are located in the hypogastric fossae. We suggest that the thermovascular structures we describe also prevent hypothermic insult to female manatee reproductive tissues. The venous structures in manatees are functionally similar to structures associated with reproductive thermoregulation in cetaceans and phocid seals. Thus, these thermovascular structures appear to be convergent morphological adaptations that occur in three clades of diving mammals with independent evolutionary histories. PMID:11745089

  19. Helminths of the Florida manatee, Trichechus manatus latirostris, with a discussion and summary of the parasites of sirenians.

    Science.gov (United States)

    Beck, C A; Forrester, D J; Beck, C

    1988-08-01

    We examined 215 Florida manatees (Trichechus manatus latirostris) at necropsy to determine the helminth fauna. Six species were identified: Heterocheilus tunicatus (Nematoda: Ascaridoidea); Anoplocephala sp. (Cestoda: Cyclophyllidea); and 4 species of trematodes, Cochleotrema cochleotrema (Digenea: Opisthotrematidae), Chiorchis fabaceus (Digenea: Paramphistomatidae), Nudacotyle undicola (Digenea: Nudacotylidae), and Moniligerum blairi (Digenea: Opisthotrematidae). Seventy-three percent of the manatees examined were infected with at least 1 species of helminth. The mean number of species of helminths per infected manatee was 1.9 with a range of 1-4. Fifty-nine manatees were helminth-free; 30 of these were calves. No associations were found between the intensity of helminth infections and host sex, age class, season, and geographic location of recovery, or cause of death. Differences in parasite prevalence between age classes were highly significant for Chiorchis, Cochleotrema, and Heterocheilus, due to a low number of infected calves. A higher prevalence of Cochleotrema was found in manatees recovered from eastern Florida, and Heterocheilus was evident in significantly more manatees from western and souther Florida. Comparisons in the parasite fauna are made among Florida manatees and other sirenian populations, and a brief review of sirenian parasites is included. PMID:3397825

  20. Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys) associated with wintering Florida manatees (Trichechus manatus latirostris)

    Science.gov (United States)

    Nico, Leo G.

    2010-01-01

    Several Pterygoplichthys species, members of the Neotropical catfish family Loricariidae, have been widely introduced outside their native ranges. In this paper, I present observations on the diel activity pattern of non-native Pterygoplichthys, tentatively identified as P. disjunctivus, with respect to their attachment and grazing on endangered Florida manatees, Trichechus manatus latirostris. The study was conducted in December 2009 at Volusia Blue Spring, an artesianal spring system in the St. Johns River basin, Florida (USA). Supplemented by information gathered during previous visits to the spring site, this study revealed that adult Pterygoplichthys are active throughout the diel period (day, twilight and night). However, juvenile Pterygoplichthys were largely nocturnal and only at night did they consistently join adults in attaching to manatees. The juveniles generally remain hidden during the day, probably responding to presence of diurnal predators, mainly birds. Differences in diel behaviors among different Pterygoplichthys size classes in Florida are consistent with published observations on loricariids inhabiting clearwater streams within their native ranges.

  1. Carbon and nitrogen stable isotope turnover rates and diet-tissue discrimination in Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Alves-Stanley, Christy D; Worthy, Graham A J

    2009-08-01

    The Florida manatee (Trichechus manatus latirostris) is a herbivorous marine mammal that occupies freshwater, estuarine and marine habitats. Despite being considered endangered, relatively little is known about its feeding ecology. The present study expands on previous work on manatee feeding ecology by providing critical baseline parameters for accurate isotopic data interpretation. Stable carbon and nitrogen isotope ratios were examined over a period of more than 1 year in the epidermis of rescued Florida manatees that were transitioning from a diet of aquatic forage to terrestrial forage (lettuce). The mean half-life for (13)C turnover was 53 and 59 days for skin from manatees rescued from coastal and riverine regions, respectively. The mean half-life for (15)N turnover was 27 and 58 days, respectively. Because of these slow turnover rates, carbon and nitrogen stable isotope analysis in manatee epidermis is useful in summarizing average dietary intake over a long period of time rather than assessing recent diet. In addition to turnover rate, a diet-tissue discrimination value of 2.8 per thousand for (13)C was calculated for long-term captive manatees on a lettuce diet. Determining both turnover rate and diet-tissue discrimination is essential in order to accurately interpret stable isotope data. PMID:19617427

  2. Golgi Analysis of Neuron Morphology in the Presumptive Somatosensory Cortex and Visual Cortex of the Florida Manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Reyes, Laura D; Harland, Tessa; Reep, Roger L; Sherwood, Chet C; Jacobs, Bob

    2016-01-01

    The current study investigates neuron morphology in presumptive primary somatosensory (S1) and primary visual (V1) cortices of the Florida manatee (Trichechus manatus latirostris) as revealed by Golgi impregnation. Sirenians, including manatees, have an aquatic lifestyle, a large body size, and a relatively large lissencephalic brain. The present study examines neuron morphology in 3 cortical areas: in S1, dorsolateral cortex area 1 (DL1) and cluster cortex area 2 (CL2) and in V1, dorsolateral cortex area 4 (DL4). Neurons exhibited a variety of morphological types, with pyramidal neurons being the most common. The large variety of neuron types present in the manatee cortex was comparable to that seen in other eutherian mammals, except for rodents and primates, where pyramid-shaped neurons predominate. A comparison between pyramidal neurons in S1 and V1 indicated relatively greater dendritic branching in S1. Across all 3 areas, the dendritic arborization pattern of pyramidal neurons was also similar to that observed previously in the afrotherian rock hyrax, cetartiodactyls, opossums, and echidnas but did not resemble the widely bifurcated dendrites seen in the large-brained African elephant. Despite adaptations for an aquatic environment, manatees did not share specific neuron types such as tritufted and star-like neurons that have been found in cetaceans. Manatees exhibit an evolutionarily primitive pattern of cortical neuron morphology shared with most other mammals and do not appear to have neuronal specializations for an aquatic niche. PMID:27166161

  3. Variation in the hindgut microbial communities of the Florida manatee, Trichechus manatus latirostris over winter in Crystal River, Florida.

    Science.gov (United States)

    Merson, Samuel D; Ouwerkerk, Diane; Gulino, Lisa-Maree; Klieve, Athol; Bonde, Robert K; Burgess, Elizabeth A; Lanyon, Janet M

    2014-03-01

    The Florida manatee, Trichechus manatus latirostris, is a hindgut-fermenting herbivore. In winter, manatees migrate to warm water overwintering sites where they undergo dietary shifts and may suffer from cold-induced stress. Given these seasonally induced changes in diet, the present study aimed to examine variation in the hindgut bacterial communities of wild manatees overwintering at Crystal River, west Florida. Faeces were sampled from 36 manatees of known sex and body size in early winter when manatees were newly arrived and then in mid-winter and late winter when diet had probably changed and environmental stress may have increased. Concentrations of faecal cortisol metabolite, an indicator of a stress response, were measured by enzyme immunoassay. Using 454-pyrosequencing, 2027 bacterial operational taxonomic units were identified in manatee faeces following amplicon pyrosequencing of the 16S rRNA gene V3/V4 region. Classified sequences were assigned to eight previously described bacterial phyla; only 0.36% of sequences could not be classified to phylum level. Five core phyla were identified in all samples. The majority (96.8%) of sequences were classified as Firmicutes (77.3 ± 11.1% of total sequences) or Bacteroidetes (19.5 ± 10.6%). Alpha-diversity measures trended towards higher diversity of hindgut microbiota in manatees in mid-winter compared to early and late winter. Beta-diversity measures, analysed through PERMANOVA, also indicated significant differences in bacterial communities based on the season. PMID:24215517

  4. Evaluación de la Inclusión de Harina Integral de Carne de Gallina de desecho en Alimentos Completos Balanceados para Neonatos de Babilla (Caiman crocodilus fuscus; Cope, 1868) y su Efecto sobre el Crecimiento y la Productividad en Cautiverio

    OpenAIRE

    Gonzalo Jiménez; Germán Afanador-Tellez; José Viorello-Cifuentes

    2006-01-01

    Estudio realizado con 96 neonatos machos de babilla (Caiman crocodilus fuscus), en los cuales se utilizaron seis tratamientos alimenticios que comprendían tres controles, los grupos controles correspondían a tres prototipos de dietas que representan diferentes tendencias de formulación de alimento para cocodrilos y caimanes; la primera (Granja) el cual consistía en el suministro de desechos de incubadora (pollos machos de estirpes blancas de ponedoras) el cual se suministro a voluntad; la seg...

  5. Bile salts of the West Indian manatee, Trichechus manatus latirostris: novel bile alcohol sulfates and absence of bile acids.

    Science.gov (United States)

    Kuroki, S; Schteingart, C D; Hagey, L R; Cohen, B I; Mosbach, E H; Rossi, S S; Hofmann, A F; Matoba, N; Une, M; Hoshita, T

    1988-04-01

    The bile salts present in gallbladder bile of the West Indian manatee, Trichechus manatus latirostris, an herbivorous marine mammal of the tropical and subtropical margins of the Atlantic Ocean, were found to consist of a mixture of bile alcohol sulfates. Bile acids, previously believed to be present in all mammals, were not detected. Using chromatography, mass spectrometry, and 1H- and 13C-nuclear magnetic resonance spectroscopy, the major bile alcohol was identified as 5 beta-cholestane-3 alpha,6 beta,7 alpha-25,26-pentol; that is, it had the nuclear structure of alpha-muricholic acid and the side chain structure of bufol. This compound has not been described previously and the trivial name "alpha-trichechol" is proposed. The second most abundant compound was 5 beta-cholestane-3 alpha,7 alpha,25,26-tetrol. Other bile alcohols were tentatively identified as 5 beta-cholestane-3 alpha,6 beta,7 beta,25,26-pentol (named beta-trichechol), 3 alpha,6 alpha,7 beta, 25-26-pentol (named omega-trichechol) and 5 beta-cholestane-3 alpha,6 beta,7 alpha,26-tetrol. The 1H and 13C NMR spectra of the four 6,7 epimers of 3,6,7 trihydroxy bile acids are described and discussed. All bile alcohols were present as ester sulfates, the sulfate group being tentatively assigned to the 26-hydroxy group. 12-Hydroxy compounds were not detected. The manatee is the first mammal found to lack bile acids, presumably because it lacks the enzymes required for oxidation of the 26-hydroxy group to a carboxylic acid. Trichechols, like other bile salts, are water-soluble end products of cholesterol metabolism; whether they also function as biological surfactants in promoting biliary cholesterol secretion or lipid digestion is unknown. PMID:3392467

  6. Detection and identification of plasma progesterone metabolites in the female Florida manatee (Trichechus manatus latirostris) using GC/MS/MS.

    Science.gov (United States)

    Tripp, K M; Dubois, M; Delahaut, P; Verstegen, J P

    2009-08-01

    Florida manatees (Trichechus manatus latirostris) have relatively low peripheral concentrations of progesterone (P4). The objective of this study was to determine if these relatively low P4 concentrations are associated with a high ratio of progestin metabolites and to document metabolite concentrations from individual blood samples obtained from manatees during diestrus or pregnancy. Metabolites known to exist in elephants-terrestrial manatee relatives-were targeted. These included 5alpha-reduced progestins (5alpha-pregnane-3,20-dione [5alpha-DHP] and 3alpha-hydroxy-5alpha-pregnan-20-one [5alpha-P3-OH]) and 17alpha-hydroxyprogesterone (17alpha-OHP), which occurs in Asian elephants. An additional, inactive metabolite, 20alpha-hydroxyprogesterone (20alpha-OHP), indicative of P4 overproduction, was also targeted. Progesterone itself was the predominant progestin detected in pregnant and nonpregnant manatee plasma (n = 10) using gas chromatography-mass spectrometry with tandem quadrupole detectors (GC/MS/MS). Progesterone concentrations in pregnant females varied from early (moderate to high) through mid and late (low) pregnancy. Progesterone concentrations ranged from low to high in nonpregnant, nonlactating females. The most commonly detected metabolite was 5alpha-P3-OH (n = 7), which occurred in pregnant (lower limit of detection [LLOD] to high) and nonpregnant (trace to high) females. The 5alpha-DHP metabolite was also detected in pregnant (LLOD to moderate) and nonpregnant (low) females. The 17alpha-OHP metabolite was not detected in any tested female. The 20alpha-OHP metabolite was detected in one nonpregnant, nonlactating, captive female (LLOD). Metabolites were most prevalent during early pregnancy, concurrent with maximum P4 concentrations. Based on their concentrations in peripheral circulation, we inferred that these metabolites may have, opposite to elephants, a limited physiologic role during luteal, pregnant, and nonpregnant phases in the manatee. PMID

  7. Secretion of anti-Müllerian hormone in the Florida manatee Trichechus manatus latirostris, with implications for assessing conservation status

    Science.gov (United States)

    Wilson, Rhian C.; Reynolds, John E., III; Wetzel, Dana L.; Schwierzke-Wade, Leslie; Bonde, Robert K.; Breuel, Kevin F.; Roudebush, William E.

    2011-01-01

    Environmental and anthropogenic stressors can affect wildlife populations in a number of ways. For marine mammals (e.g. the Florida manatee Trichechus manatus latirostris), certain stressors or conservation risk factors have been identified, but sublethal effects have been very difficult to assess using traditional methods. The development of 'biomarkers' allows us to correlate effects, such as impaired reproduction, with possible causes. A recently developed biomarker (anti-Müllerian hormone, AMH) provides an enzyme-linked immunosorbent assay of gonadal function. The study objective was to determine AMH levels in wild manatees. In total, 28 male and 17 female manatee serum samples were assayed. Animal demographics included collection date, body weight (kg) and total length (cm). In certain cases, age of individuals was also known. AMH levels ranged from 160 to 2451.85 ng ml-1 (mean = 844.65 ng ml-1) in males and 0.00 to 0.38 ng ml-1 (mean = 0.10 ng ml-1) in females. Linear regression analyses revealed a significant relationship between male AMH levels and body weight (R2 = 0.452; p 2 = 0.338; p < 0.001). Due to the small sample size, regression analyses for female AMH and body weight and length were not significant. This represents the first report of AMH detection in a marine mammal. AMH levels in male manatees are the highest of any species observed to date, whereas levels in females are within reported ranges. Further studies will promote improved conservation decision by assessing AMH levels in the manatee as a function of various stressors including, but not limited to, nutritional status, serious injuries (e.g. watercraft collisions), exposure to biotoxins or contaminants, or disease.

  8. Coeficiente de digestibilidade aparente de cinco fontes energéticas para o jacaré-do-pantanal (Caiman yacare, Daudin, 1802 Apparent digestibility coefficients of five energetic food sources for the "jacaré-do-pantanal" (Caiman yacare, Daudin, 1802

    Directory of Open Access Journals (Sweden)

    Fernando Rodrigues Maciel

    2003-06-01

    Full Text Available Foi conduzido um ensaio de digestibilidade nas instalações da Cooperativa de Criadores de Jacaré-do-pantanal, na cidade de Cáceres-MT, com o objetivo de avaliar o valor nutricional de cinco alimentos para o jacaré-do-pantanal (Caiman yacare. Utilizou-se um delineamento inteiramente casualizado, com 5 tratamentos e 3 repetições, sendo a unidade experimental formada por 3 jacarés, com peso total médio de 3940 ± 240 g, temperatura ambiente média de 30,5 ± 5,0ºC e temperatura média da água de 27,8 ± 1,0ºC. A quantidade de alimento fornecida por repetição a cada dois dias foi padronizada em 20 g de matéria seca por unidade de peso metabólico (kg0,75. As médias dos coeficientes de digestibilidade aparente foram comparadas pelo teste de Tukey. O coeficiente de digestibilidade aparente da matéria seca foi de 80,78; 68,08; 69,91; 30,12 e 58,95; e o coeficiente de digestibilidade aparente da energia bruta de 82,59; 60,58; 61,66; 25,17 e 48,57, para a glicose, dextrina, amido de milho, milho triturado e pectina, respectivamente. A glicose apresentou o maior CDAEB e o milho, o menor.A metabolism trial was carried out at the facilities of the Cooperative of growers of the "Jacaré do Pantanal" , in Cáceres - MT, with the objective of evaluating the nutritional value of five energetic feedstuffs for the "jacaré-do-pantanal" (Caiman yacare. A completely randomized design with five treatments and three replicates was utilized, the experimental unit being constituted of three caimans, with a total mean weight of 3940 ± 240 g, average environmental temperature of 30.5 ± 5.0ºC and average temperature of the water of 27.8 ± 1.0ºC. The amount of feed furnished per replicate every two days was standardized in 20 g of dry matter per unit of metabolic weight (kg0.75. The means of the coefficients of apparent digestibility were compared through Tukey’s test (P<0,05. The coefficient of apparent digestibility of dry matter was of 80.78; 68

  9. Bases ósseas e musculares dos cortes comerciais da cauda de jacaré-do-Pantanal (Caiman yacare Daudin 1802

    Directory of Open Access Journals (Sweden)

    S.I.S. Figueiredo

    2015-06-01

    Full Text Available A exploração comercial de jacaré-do-Pantanal (Caiman yacare constitui importante cadeia produtiva no Estado de Mato Grosso. As características nutricionais e representatividade na massa corporal de crocodilianos tornaram a região da cauda objeto de estudos morfofisiológicos, evolutivos e tecnológicos. Como inexiste a caracterização anatômica dos músculos e ossos que constituem os cortes comerciais dessa região, objetivou-se descrever os músculos e correspondentes bases ósseas da cauda. Na descrição óssea, foram utilizados um exemplar adulto e seis juvenis. Para caracterização muscular, 24 espécimes juvenis foram conservados em freezer e dissecados a fresco, em ambos os antímeros, para verificação de simetria de ocorrência, fixações musculares, relacões de sintopia, forma e arquitetura muscular. As vértebras caudais são procélicas, exceto a primeira da série, e possuem na superfície ventral do corpo áreas para articulação com os processos hemais, exceto a primeira e as quatro ou cinco últimas. Os cortes comerciais da região são o filé de cauda, composto pelos músculos semiespinhal caudal, longuíssimo caudal, ilioisquiocaudal, caudofemoral longo, transverso e profundo da cauda, enquanto o corte ponta de cauda é constituído pelos músculos longuíssimo caudal e ilioisquiocaudal, com as cinco ou seis últimas vértebras caudais.

  10. Avaliação físico química da carne de jacaré-do-pantanal (Caiman yacare Daudin 1802 de idades diferentes Physichist chymistry evaluation of swampland alligator meat (Caiman yacare Daudin 1802 of different ages

    Directory of Open Access Journals (Sweden)

    João Vicente Neto

    2007-10-01

    Full Text Available Com o objetivo de avaliar a composição química e física da carne de jacaré-do-pantanal (Caiman yacare Daudin 1802, de idades diferentes, foram coletadas amostras de dois cortes de 10 jacarés-do-pantanal, sendo: 05 animais 14 meses e 05 animais com 26 meses, criados em cativeiro. Os cortes utilizados foram filé da cauda e filé do dorso. Foram determinados na composição química: umidade, proteína, extrato etéreo e cinzas; e na composição física: perda de peso por cozimento (PPC e força de cisalhamento (FC. Houve interação (PWith the objective of evaluating the chemical and physical composition of swampland alligator meat (Caiman yacare Daudin 1802, of different ages, samples of two courts of 10 swampland alligator were collected, being: 05 animals 14 months and 05 animals with 26 months, servants in captivity. The used courts were of tail and neck. They were certain in the chemical composition: moisture, protein, ethereal extract and ashes; and in the physical composition: weight loss for cooking (WLC and break force (BF. There was interaction (P<0.05 for moisture and for break force (BF. The animals with 14 months presented average of higher moisture (76.75% in the tail that the animals with 26 months (74.48%. The averages of ethereal extract varied of: 0.40% to 0.54% among the courts for the animals of 14 months and of 0.51% to 0.84% for the animals of 26 months. The found protein values were: 23.57% in the tail and 24.37% in the neck in the animals of 14 months; and of 24.26% in the tail and 23.74% in the neck for the animals of 26 months. The medium value of WLC, in the animals with 14 months was larger (40.02%, that in the animals of 26 months (33.82%. The animals abated with age of 14 months presented softer meat and values of ethereal extract smaller the animals abated with 26 months, demonstrating for these parameters a better physical and chemical quality.

  11. Hambúrgueres de aparas de jacaré-do-pantanal (Caiman yacare submetidos a diferentes técnicas de defumação

    Directory of Open Access Journals (Sweden)

    V.R.T. Fernandes

    2013-06-01

    Full Text Available Avaliaram-se hambúrgueres de aparas de jacaré-do-pantanal (Caiman yacare quanto à composição centesimal, cor e análise sensorial. O delineamento foi inteiramente ao acaso, em três tratamentos: T1= sem defumação; T2= defumação a quente e T3= defumação líquida, e nove repetições. As aparas foram moídas e condimentadas para o hambúrguer. Os hambúrgueres para defumação a quente foram colocados no defumador 60 min a 60ºC com gerador de fumaça por fricção. Foi pulverizada fumaça líquida, sobre os produtos (T3, e estes foram colocados em desidratador por 60 min a 60ºC. Houve diferença significativa quanto à composição centesimal entre os hambúrgueres defumados, T2 = 43,1% e T3 = 60,9%, e verificou-se menor teor de umidade em relação aos sem defumação, 73,3%. A proteína, 39,9%, e as cinzas, 6,1%, foram mais altas nos defumados a quente. Os hambúrgueres defumados a quente apresentaram menor luminosidade, 42,05, e maiores valores do croma a*, 14,65, e b*, 28,57, em relação aos demais tratamentos. As variáveis sensoriais foram significativas para sabor, textura e aceitação geral. Os produtos defumados a quente apresentaram a pior aceitação. Concluiu-se que a defumação a quente proporciona produtos com menor teor de umidade, com pigmentação mais intensa, porém menos aceitos pelos provadores.

  12. Sequência de ossificação do sincrânio e hioide em embriões de Caiman yacare (Crocodylia, Alligatoridae

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    Fabiano C. Lima

    2011-09-01

    Full Text Available O crânio representa uma estrutura única e complexa dos vertebrados, sendo foco relevante objeto de estudos morfológicos e sistemáticos. Embora os crocodilianos constituam um importante grupo representante dos Archosauria, nossos conhecimentos acerca de seu desenvolvimento e homologias ainda são escassos. Aqui descrevemos uma sequência detalhada de ossificação dos ossos do crânio de Caiman yacare (Daudin, 1802, objetivando contribuir com informações de foco anatômico. Coletaram-se ao acaso embriões em intervalos regulares durante todo o período de incubação, sendo estes posteriormente submetidos a protocolo de diafanização e coloração de ossos. O padrão de ossificação em C. yacare segue parâmetros gerais em répteis e outros tetrápodes. Os primeiros centros de ossificação correspondem aos ossos dérmicos, envolvidos com funções primárias como a alimentação e respiração (e.g. maxila, dentário, esplenial, angular, pterigoide, ectopterigoide e jugal, incluindo ainda os dentes. Os ossos da porção dorsal do neurocrânio se ossificam posteriormente, evidenciando uma fontanela cranial que permanece até o momento da eclosão. Os ossos parietal, frontal e opstótico possuem mais de um centro de ossificação que se fundem durante a ontogenia. O centro de ossificação do parisfenoide está ausente, e apenas um centro de ossificação está presente para o basisfenoide. A porção posterior do crânio é formada por centros de substituição do condrocrânio que se ossificam em estágios posteriores.

  13. Caracterização do processo de rigor mortis do músculo Ilio-ischiocaudalis de jacaré-do-pantanal (Caiman crocodilus yacare e maciez da carne Characterization of rigor mortis process of muscle Ilio-ischiocaudalis of pantanal alligator (Caiman crocodilus yacare and meat tenderness

    Directory of Open Access Journals (Sweden)

    Juliana Paulino Vieira

    2012-03-01

    Full Text Available Este trabalho utilizou seis carcaças de jacaré-do-pantanal (Caiman crocodilus yacare com o objetivo de caracterizar o processo de rigor mortis do músculo Ílio-ischiocaudalis durante o resfriamento industrial e avaliar a maciez dessa carne. Os jacarés foram escolhidos aleatoriamente e abatidos na Cooperativa de Criadores do Jacaré do Pantanal (COOCRIJAPAN, Cáceres, Mato Grosso. Após a sangria, aferiu-se as variações das temperaturas da câmara de resfriamento, das carcaças e o pH. Foram colhidas amostras para determinação do comprimento de sarcômero, da força de cisalhamento e perdas por cozimento em diferentes intervalos de tempo (0,5, 3, 5, 7, 10, 12, 15, 24 e 36h. A temperatura da câmara de resfriamento variou de 2,6°C (0,5h a 0,9°C (36h e a temperatura média das carcaças variou de 21,0°C a 4,2°C, respectivamente. O pH médio inicial do músculo foi de 6,7 e o final 5,6 e a contração máxima do sarcômero do músculo Ilio-ischiocaudalis ocorreu na 15ª hora após a sangria (1,5µm. Essa carne apresentou força de cisalhamento menor que 6,0kg.This paper studied six pantanal alligators (Caiman crocodilus yacare carcass with goal of rigor mortis process characterization of Ilio-ischiocaudalis muscle during industrial cooling and meat tenderness. The alligators were randomly assembled and slaughtered at Cooperativa de Criadores do Jacaré do Pantanal (COOCRIJAPAN - Cáceres- Mato Grosso After exsanguination, were mensured temperature of chilling room and carcasses, pH and samples were collected for determination the sarcomere length, shear force and cooking loss at different times (0.5, 3, 5, 7, 10, 12, 15, 24 and 36 hours. The temperature of chilling room varied from 2.6°C (0.5h to 0.9°C (36h and the mean carcass temperature from 21.0°C to 4.2°C, respectively. The mean initial pH of the muscle was 6.7 and the final was 5.6. The smallest sarcomere size ocurred at 15 hours after exsanguination (1.5µm. This meat presents

  14. Characterization of highly informative cross-species microsatellite panels for the Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) including five novel primers

    Science.gov (United States)

    Hunter, Margaret Kellogg; Broderick, Damien; Ovenden, Jennifer R.; Tucker, Kimberly Pause; Bonde, Robert K.; McGuire, Peter M.; Lanyon, Janet M.

    2010-01-01

    The Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) are threatened species of aquatic mammals in the order Sirenia. Sirenian conservation and management actions would benefit from a more complete understanding of genetic diversity and population structure. Generally, species-specific microsatellite markers are employed in conservation genetic studies; however, robust markers can be difficult and costly to isolate. To increase the number of available markers, dugong and manatee microsatellite primers were evaluated for cross-species amplification. Furthermore, one manatee and four dugong novel primers are reported. After polymerase chain reaction optimization, 23 (92%) manatee primers successfully amplified dugong DNA, of which 11 (48%) were polymorphic. Of the 32 dugong primers tested, 27 (84%) yielded product in the manatee, of which 17 (63%) were polymorphic. Dugong and manatee primers were compared and the most informative markers were selected to create robust and informative marker-panels for each species. These crossspecies microsatellite marker-panels can be employed to assess other sirenian populations and can provide beneficial information for the protection and management of these unique mammals.

  15. Characterization of highly informative cross-species microsatellite panels for the Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) including five novel primers.

    Science.gov (United States)

    Hunter, Margaret Kellogg; Broderick, Damien; Ovenden, Jennifer R; Tucker, Kimberly Pause; Bonde, Robert K; McGuire, Peter M; Lanyon, Janet M

    2010-03-01

    The Australian dugong (Dugong dugon) and Florida manatee (Trichechus manatus latirostris) are threatened species of aquatic mammals in the order Sirenia. Sirenian conservation and management actions would benefit from a more complete understanding of genetic diversity and population structure. Generally, species-specific microsatellite markers are employed in conservation genetic studies; however, robust markers can be difficult and costly to isolate. To increase the number of available markers, dugong and manatee microsatellite primers were evaluated for cross-species amplification. Furthermore, one manatee and four dugong novel primers are reported. After polymerase chain reaction optimization, 23 (92%) manatee primers successfully amplified dugong DNA, of which 11 (48%) were polymorphic. Of the 32 dugong primers tested, 27 (84%) yielded product in the manatee, of which 17 (63%) were polymorphic. Dugong and manatee primers were compared and the most informative markers were selected to create robust and informative marker-panels for each species. These cross-species microsatellite marker-panels can be employed to assess other sirenian populations and can provide beneficial information for the protection and management of these unique mammals. PMID:21565032

  16. Twenty-six years of post-release monitoring of Florida manatees (Trichechus manatus latirostris): evaluation of a cooperative rehabilitation program

    Science.gov (United States)

    Adimey, Nicole M.; Ross, Monica; Hall, Madison; Reid, James P.; Barlas, Margie E.; Keith Diagne, Lucy W; Bonde, Robert K.

    2016-01-01

    The rescue, rehabilitation, and release of Florida manatees (Trichechus manatus latirostris) into the wild has occurred since 1974; however, a comprehensive evaluation of the outcomes of the releases has never been conducted. Herein, we examined data for 136 Florida manatees that were rehabilitated and released with telemetry tags between 1988 and 2013 to determine release outcome of each individual as either success (acclimation) or failure after at least 1 y. Ten predictor variables were statistically evaluated for potential relationships to release outcome. To assess the contribution of each predictor variable to release outcome, each variable was tested for significance in univariate analyses. Manatees born in captivity experienced poor success after release (14%), whereas the overall success of wild-born individuals was higher (72%). When compared with other variables in our dataset, number of days in captivity was the strongest predictor for determining success. Manatees rescued as calves and held in captivity for more than 5 y had a high likelihood of failure, while subadults and adults had a high likelihood of success, regardless of the amount of time spent in captivity. Ensuring the success of individual manatees after release is critical for evaluating the contribution of the manatee rehabilitation program to the growth of the wild population.

  17. Seasonal response of ghrelin, growth hormone, and insulin-like growth factor I in the free-ranging Florida manatee (Trichechus manatus latirostris)

    Science.gov (United States)

    Tighe, Rachel L; Bonde, Robert K.; Avery, Julie P.

    2016-01-01

    Seasonal changes in light, temperature, and food availability stimulate a physiological response in an animal. Seasonal adaptations are well studied in Arctic, Sub-Arctic, and hibernating mammals; however, limited studies have been conducted in sub-tropical species. The Florida manatee (Trichechus manatus latirostris), a sub-tropical marine mammal, forages less during colder temperatures and may rely on adipose stores for maintenance energy requirements. Metabolic hormones, growth hormone (GH), insulin-like growth factor (IGF)-I, and ghrelin influence growth rate, accretion of lean and adipose tissue. They have been shown to regulate seasonal changes in body composition. The objective of this research was to investigate manatee metabolic hormones in two seasons to determine if manatees exhibit seasonality and if these hormones are associated with seasonal changes in body composition. In addition, age related differences in these metabolic hormones were assessed in multiple age classes. Concentrations of GH, IGF-I, and ghrelin were quantified in adult manatee serum using heterologous radioimmunoassays. Samples were compared between short (winter) and long (summer) photoperiods (n = 22 male, 20 female) and by age class (adult, juvenile, and calf) in long photoperiods (n = 37). Short photoperiods tended to have reduced GH (p = 0.08), greater IGF-I (p = 0.01), and greater blubber depth (p = 0.03) compared with long photoperiods. No differences were observed in ghrelin (p = 0.66). Surprisingly, no age related differences were observed in IGF-I or ghrelin concentrations (p > 0.05). However, serum concentrations of GH tended (p = 0.07) to be greater in calves and juveniles compared with adults. Increased IGF-I, greater blubber thickness, and reduced GH during short photoperiod suggest a prioritization for adipose deposition. Whereas, increased GH, reduced blubber thickness, and decreased IGF-I in long photoperiod suggest prioritization of lean tissue

  18. Serum amyloid A (SAA) as a biomarker of chronic infection due to boat strike trauma in a free-ranging Florida manatee (Trichechus manatus latirostris) with incidental polycystic kidneys

    Science.gov (United States)

    Harr, Kendal E.; Rember, Renee; Ginn, Pamela E.; Lightsey, Jessica; Keller, Martha; Reid, James; Bonde, Robert K.

    2011-01-01

    Watercraft-related trauma is the predominant cause of human-induced mortality in manatees (Trichechus manatus latirostris), a federal- and state-listed endangered species. Pyothorax (documented in this case report) and other secondary infections are common sequelae of inhalation of water and the open wounds caused by boat propellers. These secondary infections can lead to the demise of the animal weeks to months after the traumatic incident when external wounds have healed. Diagnosis of underlying disease on physical examination during capture and restraint can be difficult. Acute phase proteins, including serum amyloid A, fibrinogen, and albumin can be used to diagnose inflammatory disease in manatees and improve quality of medical care and husbandry. We also provide the first report of polycystic kidneys in Sirenians.

  19. Serum amyloid A (SAA) as a biomarker of chronic infection due to boat strike trauma in a free-ranging Florida manatee (Trichechus manatus latirostris) with incidental polycystic kidneys.

    Science.gov (United States)

    Harr, Kendal E; Rember, Renee; Ginn, Pamela E; Lightsey, Jessica; Keller, Martha; Reid, James; Bonde, Robert K

    2011-10-01

    Watercraft-related trauma is the predominant cause of human-induced mortality in manatees (Trichechus manatus latirostris), a federal- and state-listed endangered species. Pyothorax (documented in this case report) and other secondary infections are common sequelae of inhalation of water and the open wounds caused by boat propellers. These secondary infections can lead to the demise of the animal weeks to months after the traumatic incident when external wounds have healed. Diagnosis of underlying disease on physical examination during capture and restraint can be difficult. Acute phase proteins, including serum amyloid A, fibrinogen, and albumin can be used to diagnose inflammatory disease in manatees and improve quality of medical care and husbandry. We also provide the first report of polycystic kidneys in Sirenians. PMID:22102678

  20. Fatty acid profiles as a potential lipidomic biomarker of exposure to brevetoxin for endangered Florida manatees (Trichechus manatus latirostris).

    Science.gov (United States)

    Wetzel, Dana L; Reynolds, John E; Sprinkel, Jay M; Schwacke, Lori; Mercurio, Philip; Rommel, Sentiel A

    2010-11-15

    Fatty acid signature analysis (FASA) is an important tool by which marine mammal scientists gain insight into foraging ecology. Fatty acid profiles (resulting from FASA) represent a potential biomarker to assess exposure to natural and anthropogenic stressors. Florida manatees are well studied, and an excellent necropsy program provides a basis against which to assess this budding tool. Results using samples from 54 manatees assigned to four cause-of-death categories indicated that those animals exposed to or that died due to brevetoxin exposure (red tide, or RT samples) demonstrate a distinctive hepatic fatty acid profile. Discriminant function analysis indicated that hepatic fatty acids could be used to classify RT versus non-RT liver samples with reasonable certainty. A discriminant function was derived based on 8 fatty acids which correctly classified 100% of samples from a training dataset (10 RT and 25 non-RT) and 85% of samples in a cross-validation dataset (5 RT and 13 non-RT). Of the latter dataset, all RT samples were correctly classified, but two of thirteen non-RT samples were incorrectly classified. However, the "incorrect" samples came from manatees that died due to other causes during documented red tide outbreaks; thus although the proximal cause of death was due to watercraft collisions, exposure to brevetoxin may have affected these individuals in ways that increased their vulnerability. This use of FASA could: a) provide an additional forensic tool to help scientists and managers to understand cause of death or debilitation due to exposure to red tide in manatees; b) serve as a model that could be applied to studies to improve assessments of cause of death in other marine mammals; and c) be used, as in humans, to help diagnose metabolic disorders or disease states in manatees and other species. PMID:20880571

  1. Evaluación de la Inclusión de Harina Integral de Carne de Gallina de desecho en Alimentos Completos Balanceados para Neonatos de Babilla (Caiman crocodilus fuscus; Cope, 1868 y su Efecto sobre el Crecimiento y la Productividad en Cautiverio

    Directory of Open Access Journals (Sweden)

    Gonzalo Jiménez

    2006-06-01

    Full Text Available Estudio realizado con 96 neonatos machos de babilla (Caiman crocodilus fuscus, en los cuales se utilizaron seis tratamientos alimenticios que comprendían tres controles, los grupos controles correspondían a tres prototipos de dietas que representan diferentes tendencias de formulación de alimento para cocodrilos y caimanes; la primera (Granja el cual consistía en el suministro de desechos de incubadora (pollos machos de estirpes blancas de ponedoras el cual se suministro a voluntad; la segunda (Caseína, consistía en una dieta con las mismas características nutricionales de los tratamientos experimentales, pero basados en el uso de niveles ligeramente inferiores de calcio y fósforo para lo cual se incluyó caseína en proporciones similares a las ofrecidas en Alligator mississipiensis por Staton & colaboradores (1990b; la tercera dieta (HP100%, fue la base para los tratamientos en los cuales se incluía harina integral de gallina liviana de desecho y contenía 35% de harina de pescado, para ser reemplazada en los grupos experimentales a niveles de 30, 60 y 90%. El total del estudio demostró que las ganancias de peso corporal fueron: 135,5; 63,7; 292,0 y 119,1g ganados / periodo, para los tratamientos Granja, Caseína, HP100%, HG30%, respectivamente. Para el total del periodo de estudio con relación a las ganancias de longitud total y velocidad de crecimiento fueron de 14,0; 8,4; 23,8 y 12,4cm ganados / periodo, para los tratamientos Granja, Caseína, HP100% y HG30%, receptivamente.

  2. Cuba: The Sleeping Caiman of the Caribbean

    OpenAIRE

    Gámez Garcell, Tamila, 1974-

    2010-01-01

    Cuban society has for decades been characterized by its egalitarian policies. In recent years, Cuba has initated a process of privitization which has enabled capitalist initiatives in the country. This master thesis has the objective to analyze the general business environment prevalent in Cuba and find opportunities for possible investors in the Cuban market and ways of entry which are available at the moment. Qualitative research, (specifically a desk research) is the primary method use...

  3. Состав липидов икры креветок Sclerocrangon salebrosa и Pandalus latirostris

    OpenAIRE

    Юрьева, М.; Акулин, В.

    2005-01-01

    Исследован состав липидов наружной икры II и III стадий зрелости креветок Японского моря шримса-медвежонка (S. salebrosa) и травяной креветки (P. latirostris). Стадия зрелости икры была определена как II (с маленьким глазком) и III (с большим глазком). Преобладающими липидами икры этих видов креветок являются полярные липиды, содержание которых было выше на III стадии зрелости. Концентрация свободных жирных кислот, стеринов и жирных спиртов в икре не превышала 1 %. Фосфолипиды представлены че...

  4. СПЕРМИОГЕНЕЗ ТРАВЯНОГО ШРИМСА PANDALUS LATIROSTRIS

    OpenAIRE

    Ковалева, В.

    2011-01-01

    Гистохимическими методами и методами электронной микро-скопии исследованы клетки фолликулярного эпителия в яичнике у травяного шримса Pandalus latirostris. Показано, что в созревании ооцита важную роль играют фолликулярные клетки. Субмикроскопи-ческое исследование клеток фолликулярного эпителия на разных этапах оогенеза выявило динамику их морфологии, изменение коли-чества клеточных органоидов, коррелирующих с характером функ-ционирования фолликулярного эпителия на разных этапах оогенеза. В р...

  5. Hysteroscopy and episiotomy in a rescued, cold-stressed Florida manatee (Trichechus manatus latirostris) for diagnosis and treatment of a retained fetal skeleton.

    Science.gov (United States)

    Hall, Natalie H; Walsh, Mike; DeLuca, Catherine; Bukoski, Alex

    2012-09-01

    A rescued female manatee was observed expelling a fetal bone from the vulva. The manatee was anesthetized and diagnosed with uterine retention of a fetal skeleton by ultrasound and hysteroscopy. Episiotomy was performed to gain manual access to the vagina and uterus for removal of the skeleton. Second intention healing of the episiotomy site produced excellent results. Rescued female manatees should receive a thorough reproductive tract evaluation since presence of retained fetal tissues might not be evident in blood or hormone analyses. Retention of a whole or partial dead fetus can be life-threatening to manatees, and retained tissues should be removed as early as possible. PMID:23082540

  6. Purification and characterization of the major whey proteins from the milks of the bottlenose dolphin (Tursiops truncatus), the Florida manatee (Trichechus manatus latirostris), and the beagle (Canis familiaris).

    Science.gov (United States)

    Pervaiz, S; Brew, K

    1986-05-01

    The major whey proteins of the milks of the dolphin, manatee, and beagle were purified by gel filtration and ion exchange chromatography and characterized and identified by molecular weight determination, amino acid analysis, N-terminal sequencing, and activity measurements. The major whey protein components from all three species were found to be monomeric beta-lactoglobulins. These proteins were all active in binding retinol. Dolphin milk contained two beta-lactoglobulins (designated 1 and 2) which showed a slight difference in molecular weight and considerably divergent N-terminal sequences, whereas the other milks only contained a single form of beta-lactoglobulin. alpha-Lactalbumins were purified from dolphin and dog milks and were active in promoting lactose synthesis by bovine galactosyltransferase. The dolphin protein had an N-terminal sequence more similar to ruminant alpha-lactalbumins than to those known from other species. Although alpha-lactalbumin activity has been detected in manatee milk at low levels, the corresponding protein was not isolated. In addition, dog milk was found to contain high levels of lysozyme (greater than 1.0 mg/ml), which were identified by activity and sequencing. The functional and evolutionary implications of these results are discussed. PMID:3707136

  7. Qualidade e composição química de cortes comerciais de carne de jacaré-do-pantanal (Caiman yacare Quality and chemistry composition of comercial cuts of alligator swanpland meat (Cayman yacare

    Directory of Open Access Journals (Sweden)

    Erika Cristina Rodrigues

    2007-04-01

    Full Text Available Com o objetivo de caracterizar a carne de jacaré-do-pantanal, 20 peças (cortes comerciais foram obtidas de cinco carcaças de animais oriundos de zoocriadouros (Cáceres - MT, abatidos com peso entre 2,5 a 3,0 kg. Os cortes comparados foram: filé de cauda, filé de dorso, filé de lombo e membros. As características físico-químicas de perda de peso por cozimento (médias com variação de 38,99 a 42,28 %; força de cisalhamento (2,29 a 2,50 kgf e o componente de cor luminosidade (54,01 a 56,02 foram semelhantes nos diferentes cortes. O teor de vermelho foi mais elevado (PWith the objective of characterize the alligator swampland meat, a total of 20 parts (commercial cuts were taken of 5 carcass from these animals kept in captivity (Cáceres MT slaughtered with the weight ranged 2.5 to 3 Kg. The commercial cuts were tail filet, back filet, loin filet and members. The physical chemistry characterizes of weight loss (ranged means from 38.99 to 42.28% shear force (2.29 to 2.50 kgf and the color component luminosity (54.01 to 56.02 were similar in the different cuts. However, the tenor of red was higher (P0,05 among the cuts to total protein content. Therefore the results shows different in moisture, fat and ashes . The cut tail filet showed (P>0,05 higher fat percentage (0,54% than the others cuts loin filet, back filet and members (0,29; 0,40, and 0,34% respectively These results show that the meat of alligator presents cuts with appearance very clear, similar to the color of fish, and when cooked, presents high tenderness. Also the cuts shows low percentage of total lipids and the cut tail filet show to have more fat than the others cuts.

  8. Processamento da carne do jacaré do pantanal (Caiman crocodilus yacare Meat processing of pantanal alligator (Caiman crocodilus yacare

    Directory of Open Access Journals (Sweden)

    Pedro Fernando Romanelli

    2002-01-01

    Full Text Available Trata-se de um estudo de algumas formas de processamento da carne de jacaré do pantanal como uma alternativa de consumo, de uma forma não convencional, da carne dessa espécie. Testa-se, ao mesmo tempo, a utilização de carne de cortes normalmente descartados tais como o tronco e os membros. Dessa forma relatam-se os seguintes processamentos: produtos de salsicharia não embutidos (tipo hambúrguer, carne em conserva (enlatado, carne curada e não cozida (defumada e produto curado e cozido (tipo apresuntado. Avalia-se a qualidade dos produtos através da análise sensorial e mede-se estatisticamente o grau de sua aceitação.This study considers different ways of processing alligator swampland meat as an alternative of consumption in a non conventional way for that species. It also evaluates the utilization of the meat coming from parts normally discarded such as muscle of the trunk and membranes. The following processes were accomplished to reach the objective: non sausage products (type hamburger preserved meat (canned, non-cooked cured meat (smoky, and cured cooked product (type ham. The quality of the products was evaluated through sensorial analyses and the data were submited to statistical treatment to determine the acceptance degree.

  9. Enceladus Results

    Data.gov (United States)

    National Aeronautics and Space Administration — Here are some results from the Spectra Decomposition Algorithm on infrared spectral images of Saturn's moon Enceladus. Figure 1 is the spatial contribution of the...

  10. SAGE results

    International Nuclear Information System (INIS)

    The Russian-American Gallium solar neutrino Experiment (SAGE) is described. The solar neutrino flux measured by 31 extractions through October, 1993 is presented. The result of 69+/-10(stat)+5/-7(syst) SNU is to be compared with a Standard Solar Model prediction of 132 SNU. The initial results of a measurement of experimental efficiencies are also discussed by exposing the gallium target to neutrinos from an artificial source. The capture rate of neutrinos from this source is very close to that which is expected. The result can be expressed as a ratio of the measured capture rate to the anticipated rate from the source activity. This ratio is 0.93+0.15, -0.17 where the systematic and statistical errors have been combined. To first order the experimental efficiencies are in agreement with those determined during solar neutrino measurements and in previous auxiliary measurements. One must conclude that the discrepancy between the measured solar neutrino flux and that predicted by the solar models can not arise from an experimental artifact. (author)

  11. THE VOCALIZATION MECHANISM OF THE FLORIDA MANATEE (TRICHECHUS MANATUS LATIROSTRIS

    Directory of Open Access Journals (Sweden)

    Charles J. Grossman

    2014-01-01

    Full Text Available The mechanism by which Florida manatees produce vocalizations is unknown. Anatomically, the laryngeal region in manatees lacks clearly defined vocal folds. Initially we developed a method to visualize the entire manatee upper respiratory system. We then forced air through fresh necropsied manatee larynxes and generated artificial vocalizations which closely duplicated the normal vocalizations produced by live manatees, both in fundamental frequency and structure of harmonics. Here we report that sound is generated in the larynx when air vibrates bilateral strips of tissue embedded in the lateral laryngeal walls which are in close approximation anteriorly but which diverge posteriorly. We propose that these strips of tissue are the modified vocal folds containing ligaments and we support this through histological stained sections and because they are connected anteriorly to the posterior side of the thyroid cartilage and posteriorly with the arytenoidal cartilages. We also suggest that these vocalizations are then modified within the resonance cavities in the frontal area of the head and the air used to generate these vocalizations also causes a transient deformation of this region before being conserved and returned to the lungs.

  12. Anti-Leptospira spp. antibodies in captive animals in Paraíba State

    Directory of Open Access Journals (Sweden)

    Arthur Brasil

    2013-12-01

    Full Text Available The aim of this survey was to verify the occurrence of anti-Leptospira spp. antibodies in captive animals in the Parque Zoobotânico Arruda Câmara, João Pessoa, Paraíba State, Northeastern Brazil. Blood samples were collected from 49 animals: 26 mammals of the species Sapajus libidinosus, Cebus flavius, Saimiri sciureu, Coendu sp., Pseudalopex vetulus, Leopardus pardalis, Leopardus tigrinus, Galactitis vitata, Eira barbara, Nasua nasua, Tayassu tajacu and Ratus norvegicus; 10 birds of the species Penelope jacucaca, Pavo cristatus, Anodorhynchus hyacinthinus, Ara chlorothpterus, Pionites leucogaster, Polyborus plancus, Geranoaetus melanoleucus and Urubitinga urubitinga; and 13 reptiles of the species Caiman latirostris, Paleosuchus trigonatus, Caiman crocodilus, Tupinabis merinae, Tupinambis teguixin, Boa constrictor, Corallus hortulanus, Python molurus, Bufocephala vanderhaegei, Geochelone denticulata and Geochelone carboraria. Sera were examined by the microscopic agglutination teste (MAT using 24 serovars as antigens and cut-off point of 1:100. One ocelot (Leopardo pardalis presented positive reaction for the Icterohaemorrhagiae serovar with titer of 100, however, it did not show any clinical sign of the infection. Sinantropic rodents are the main reservoirs of this serovar, which suggests the need of maintenance and continuous evaluation of rodent control programs.

  13. New data on the morphology of two nematode species from Caiman crocodilus from Venezuela

    Czech Academy of Sciences Publication Activity Database

    Moravec, František; Prouza, A.

    2003-01-01

    Roč. 48, č. 2 (2003), s. 111-118. ISSN 1230-2821 R&D Projects: GA AV ČR IAA6022201 Institutional research plan: CEZ:AV0Z6022909 Keywords : parasitic nematodes * Brevimulticaecum * Micropleura Subject RIV: EA - Cell Biology Impact factor: 0.495, year: 2003

  14. Histologia geral dos intestinos do Caiman crocodilus yacare (Daudin, 1802 (Crocodilia: Reptilia

    Directory of Open Access Journals (Sweden)

    Sonia Maria Jin

    1990-01-01

    Full Text Available General histology of small intestine (duodenum and jejunum and the large intestine (colon and cloaca of C. c. yacare (Daudin, 1802 Crocodilia-Reptilia. A comparative description is made of the histology of the small and large intestine of C. c. yacare. In all segments mucosa, submucosa, muscularis and serosa tunics were observed. The duodenum as very long villi, wich are well-developed and attached together to form irregular transverse ridges, covered with simple columnar epithelium with marginal and goblet cells. In the jejunum, the villi are shorter and less frequent. The colon as few folds, covered with the same epithelium; the lamina própria contains straight tubular glands with absortive cells, goblet and Paneth cells. The cloaca is very complex, with three well-defined regions: coprodeum, urodeum and proctodeum. In the coprodeum, the wall is folded, less muscular and the thin mucosa is covered by an epithelium with a few basal cells and mucosal cells. The urodeum as an additional external muscular tunic, with striated muscle fibers and a stritifield cylindrical epithelium with goblet cells. The proctodeum includes the free part of the penis in the male and, laterally, the ducts of a pair of holocrine cloacal glands. Near the opening of the ducts, the epithelium changes to a squamous keratinized type.

  15. Histologia geral dos intestinos do Caiman crocodilus yacare (Daudin, 1802) (Crocodilia: Reptilia)

    OpenAIRE

    Sonia Maria Jin; Sandra Maria das Graças Maruch; Marco Aurélio Martins Rodrigues; Paula Pacheco

    1990-01-01

    General histology of small intestine (duodenum and jejunum) and the large intestine (colon and cloaca) of C. c. yacare (Daudin, 1802) Crocodilia-Reptilia. A comparative description is made of the histology of the small and large intestine of C. c. yacare. In all segments mucosa, submucosa, muscularis and serosa tunics were observed. The duodenum as very long villi, wich are well-developed and attached together to form irregular transverse ridges, covered with simple columnar epithelium with m...

  16. RESULTS RESULTING FROM AUTOFRETTAGE OF CYLINDER

    Institute of Scientific and Technical Information of China (English)

    ZHU Ruilin

    2008-01-01

    Autofrettage is used to introduce advantageous residual stresses into wall of a cylinder and to even distributions of total stresses. Basic theory on autofrettage has been functioning for several decades. It is necessary to reveal profound relations between parameters in the theory. Therefore, based on the 3rd strength theory, δei/δy, δei/δy, δei′/δy, δei′/δy and their relations, as well as p/δy, are studied under ideal conditions, where δei/δy is equivalent stress of total stresses at elastoplastic juncture/yield strength, δei/δy is equivalent stress of total stresses at inside surface/yield strength, δei′/δy is equivalent stress of residual stresses at elastoplastic juncture/yield strength, δei′/δy is equivalent stress of residual stresses at inside surface/yield strength, p/δy is load-bearing capacity of an autofrettaged cylinder/yield strength. Theoretical study on the parameters results in noticeable results and laws. The main idea is: to satisfy |δei′|=δy, the relation between kj and k is , where k is outside/inside radius ratio of a cylinder, kj is ratio of elastoplastic juncture radius to inside radius of a cylinder; when the plastic region covers the whole wall of a cylinder, for compressive yield not to occur after removing autofrettage pressure, the ultimate k is k=2.218 46, with k=2.218 46, a cylinder's ultimate load-bearing capacity equals its entire yield pressure, or =lnk; when kj≤=1.648 72, no matter how great k is, compressive yield never occurs after removing pa; the maximum and optimum load-bearing capacity of an autofrettaged cylinder is just two times the loading which an unautofrettaged cylinder can bear elastically, or , thus the limit of the load-bearing capacity of an autofrettaged cylinder is also just 2 times that of an unautofrettaged cylinder.

  17. Total 2004 results

    International Nuclear Information System (INIS)

    This document presents the 2004 results of Total Group: consolidated account, special items, number of shares, market environment, adjustment for amortization of Sanofi-Aventis merger-related intangibles, 4. quarter 2004 results (operating and net incomes, cash flow), upstream (results, production, reserves, recent highlights), downstream (results, refinery throughput, recent highlights), chemicals (results, recent highlights), Total's full year 2004 results (operating and net income, cash flow), 2005 sensitivities, Total SA parent company accounts and proposed dividend, adoption of IFRS accounting, summary and outlook, main operating information by segment for the 4. quarter and full year 2004: upstream (combined liquids and gas production by region, liquids production by region, gas production by region), downstream (refined product sales by region, chemicals), Total financial statements: consolidated statement of income, consolidated balance sheet (assets, liabilities and shareholder's equity), consolidated statements of cash flows, business segments information. (J.S.)

  18. Total 2004 results

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-02-01

    This document presents the 2004 results of Total Group: consolidated account, special items, number of shares, market environment, adjustment for amortization of Sanofi-Aventis merger-related intangibles, 4. quarter 2004 results (operating and net incomes, cash flow), upstream (results, production, reserves, recent highlights), downstream (results, refinery throughput, recent highlights), chemicals (results, recent highlights), Total's full year 2004 results (operating and net income, cash flow), 2005 sensitivities, Total SA parent company accounts and proposed dividend, adoption of IFRS accounting, summary and outlook, main operating information by segment for the 4. quarter and full year 2004: upstream (combined liquids and gas production by region, liquids production by region, gas production by region), downstream (refined product sales by region, chemicals), Total financial statements: consolidated statement of income, consolidated balance sheet (assets, liabilities and shareholder's equity), consolidated statements of cash flows, business segments information. (J.S.)

  19. Recent results from KTEV

    Energy Technology Data Exchange (ETDEWEB)

    Bellantoni, L.; /Fermilab

    2005-06-01

    The implications of the published KTeV K{sub L}{sup 0} {yields} {pi}{sup 0}{mu}{sup +}{mu}{sup -} result for interpreting recent {Sigma}{sup +} {yields} p{mu}{sup +} {mu}{sup -} results are discussed. The status of the KTeV {Xi}{sup 0} {yields} {Sigma}{sup +} {mu}{sup -}{nu} analysis is given. The KTeV |V{sub us}| result is also given.

  20. The Arising of Results

    DEFF Research Database (Denmark)

    Sobisch, Jan-Ulrich

    2013-01-01

    Some Buddhist scholars have periodized the expected lifetime of the Buddha's teachings. According to them, these periods of 500 years each have different characteristics. The first is called 'the period of the results'. Therefore some scholars have claimed that only in the first 500 years after the...... Buddha results can arise. Kyobpa Jigten Sumgön has argued that results arise through practise as long as Dharma and Sangha exist....

  1. Results from SAGE

    International Nuclear Information System (INIS)

    We report the results of 11 years of solar neutrino observation by the Russian-American Gallium solar neutrino Experiment (SAGE). The overall result of 84 runs during the measurement period January 1990 through March 2001 is 75.6 +5.9/-5.8 (stat.) +3.5/-3.0 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 129 SNU. The individual results of each run, as well as the results of combined analysis of all runs are presented

  2. Results from SAGE

    CERN Document Server

    Vermul, V M; Bowles, T J; Cherry, M L; Cleveland, B T; Davis, R; Elliott, S R; Gavrin, V N; Girin, S V; Gorbachev, V V; Ibragimova, T V; Kalikhov, A V; Khairnasov, N G; Knodel, T V; Lande, K; Mirmov, I N; Nico, J S; Shikhin, A A; Teasdale, W A; Veretenkin, E P; Vermul, V M; Wark, D L; Wildenhain, P S; Wilkerson, J F; Yants, V E; Zatsepin, G T

    2002-01-01

    We report the results of 11 years of solar neutrino observation by the Russian-American Gallium solar neutrino Experiment (SAGE). The overall result of 84 runs during the measurement period January 1990 through March 2001 is 75.6 +5.9/-5.8 (stat.) +3.5/-3.0 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 129 SNU. The individual results of each run, as well as the results of combined analysis of all runs are presented.

  3. Results from SAGE

    Energy Technology Data Exchange (ETDEWEB)

    Vermul, V.M.; Abdurashitov, J.N.; Bowles, T.J.; Cherry, M.L.; Cleveland, B.T.; Davis, R.; Elliott, S.R.; Gavrin, V.N.; Girin, S.V.; Gorbachev, V.V.; Ibragimova, T.V.; Kalikhov, A.V.; Khairnasov, N.G.; Knodel, T.V.; Lande, K.; Mirmov, I.N.; Nico, J.S.; Shikhin, A.A.; Teasdale, W.A.; Veretenkin, E.P.; Wark, D.L.; Wildenhain, P.S.; Wilkerson, J.F.; Yants, V.E.; Zatsepin, G.T

    2002-07-01

    We report the results of 11 years of solar neutrino observation by the Russian-American Gallium solar neutrino Experiment (SAGE). The overall result of 84 runs during the measurement period January 1990 through March 2001 is 75.6 +5.9/-5.8 (stat.) +3.5/-3.0 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 129 SNU. The individual results of each run, as well as the results of combined analysis of all runs are presented.

  4. Duration and Results (PECODR

    Directory of Open Access Journals (Sweden)

    Martin Dawes

    2007-01-01

    Conclusions Results suggest a PECODR-related structure exists in medical abstracts and that there might be lexical patterns specific to these elements. More sophisticated computer-assisted lexical-semantic analysis might refine these results, and pave the way to automating PECODR indexing, and improve information retrieval in primary care.

  5. Annual results 2004

    International Nuclear Information System (INIS)

    This 2004 annual evaluation of the french RTE company (electric power transport network) provides information on the 2004 results on: institutional information, financial results, customers and market, industrial resources, environment and consultation, human resources and international aspects. (A.L.B.)

  6. New results from COMPASS

    CERN Document Server

    Kabuß, Eva-Maria

    2015-01-01

    An overview on recent COMPASS results is given, including the extraction of the longitudinal spin structure functions interpreted with a NLO QCD fit, new results on the gluon polarisation and a measurement of pion and kaon multiplicities with a LO extraction of quark-to-hadron fragmentation functions

  7. Results from OPERA

    International Nuclear Information System (INIS)

    In this report, the details of new ντ event detected by OPERA were reported. Also first result on νμ to νe oscillation search in OPERA was described. The result excluded the high Δm2 region down to sin22θ13∼2×10−2

  8. Recent results from TRISTAN

    Energy Technology Data Exchange (ETDEWEB)

    Enomoto, Ryoji [National Laboratory for High Energy Physics, Ibaraki (Japan)

    1997-01-01

    TRISTAN results on {gamma}{gamma} physics from 1994 to 1995 are reviewed in this report. We have systematically investigated jet production, the {gamma}-structure function, and charm pair production in {gamma}{gamma} processes. The results are discussed, and future prospects are presented.

  9. Getting Districtwide Results

    Science.gov (United States)

    McBeath, Angus

    2006-01-01

    This monograph is based on a keynote presentation by Angus McBeath at the "Getting Districtwide Results" Conference in Long Beach, California, which was co-sponsored by the Cross City Campaign for Urban School Reform and Focus on Results. The author, a former superintendent of the Edmonton Public Schools, how his school district was "forced" and…

  10. Results from EQAS 2002

    DEFF Research Database (Denmark)

    Petersen, A.; Aarestrup, Frank Møller; Jensen, A.B.; Wong, Danilo Lo Fo; Evans, M.C.; Angulo, F.; Imhoff, B.; Binsztein, N.; Braam, P.; Jouan, M.; Wegener, H.C.; Seyfarth, Anne Mette

    An international external quality assurance program on serotyping and antimicrobial susceptibility testing of eight Salmonella enterica strains was performed to enhance the capacity of national and regional reference laboratories in WHO Global Salm-Surv (WHO GSS). In 2002 a total of 117...... laboratories from 67 countries participated. For serotyping, almost 90 % of the results were correct. For susceptibility testing, 91 % of the results were in agreement with the expected results, and 86 % of the performed tests with the reference strain E. coli ATCC 25922 were inside the quality control range...

  11. Enova results report 2005

    International Nuclear Information System (INIS)

    In 2005 Enova entered into agreements with 186 projects that together provided an energy result of 2 TWh. The result is almost evenly divided between projects providing higher energy production and projects that reduce energy use. The energy production consists of 585 GWh in new wind power and 409 GWh in new heat energy in 2005. Overall for the period 2001 to 2005, Enova contracted for energy results of well over 6.6 TWh. Enova is doing well in relation to the objectives set for its activities

  12. Ibis DDT test results

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document contains test results from a study done to determine the organochlorine levels in the livers of white-faced ibis from Stillwater Wildlife Management...

  13. Haiti DevResults

    Data.gov (United States)

    US Agency for International Development — DevResults is a web-based portfolio management system that tracks program data for the Haiti Mission that was awarded in April of 2013. (The Mozambique and/or...

  14. Transacsys PLC - Final Results

    CERN Multimedia

    2002-01-01

    Final results from Transacsys PLC. A subsidary of this company was set up to develop the CERN EDH system into a commercial product but incurred too much financial loss so the project was cancelled (1/2 page).

  15. Gene expression results

    Data.gov (United States)

    U.S. Environmental Protection Agency — qPCR results for Vitellogenin This dataset is associated with the following publication: Armstrong, B., J. Lazorchak , K. Jensen , H. Haring , M.E. Smith, R. Flick...

  16. Microenterprise Results Reporting

    Data.gov (United States)

    US Agency for International Development — Microenterprise Results Reporting (MRR) is an annual report to the U.S. Congress providing funding and program data on USAID's microenterprise activities. The MRR...

  17. Cholesterol testing and results

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000386.htm Cholesterol testing and results To use the sharing features ... can tell you what your goal should be. Cholesterol Tests Some cholesterol is considered good and some ...

  18. HMS Summary of Results

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Data set of summary results from a Hydrologic Modeling System run for Two Ponds NWR. Data includes peak discharge, total precipitation, total loss, total excess,...

  19. Recent results from PETRA

    International Nuclear Information System (INIS)

    Recent results on the search for new particles, new thresholds and on properties of B-mesons are reported. No new particle has been observed. More stringent limits on production cross sections have been obtained. (orig.)

  20. Higgs results from ATLAS

    CERN Document Server

    Chen, Xin; The ATLAS collaboration

    2015-01-01

    The updated Higgs measurements in various search channels with ATLAS Run 1 data are reviewed. Both the Standard Model (SM) Higgs results, such as $H\\to\\gamma\\gamma,ZZ,WW,\\tau\\tau,\\mu\\mu,b\\bar{b}$, and Beyond Standard Model (BSM) results, such as the charged Higgs, Higgs invisible decay and tensor couplings, are summarized. Prospects for future Higgs searches are briefly discussed.

  1. ATLAS physics results

    CERN Document Server

    Mitsou, Vasiliki A

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider at CERN has been successfully taking data since the end of 2009 in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, and in heavy ion collisions. In these lectures, some of the most recent ATLAS results will be given on Standard Model measurements, the discovery of the Higgs boson, searches for supersymmetry and exotics and on heavy-ion results.

  2. Compilation of results 1987

    International Nuclear Information System (INIS)

    A compilation is carried out which in concentrated form presents reports on research and development within the nuclear energy field covering a two and a half years period. The foregoing report was edited in December 1984. The projects are presendted with title, project number, responsible unit, person to contact and short result reports. The result reports consist of short summaries over each project. (L.F.)

  3. Combining Affymetrix microarray results

    Directory of Open Access Journals (Sweden)

    Doerge RW

    2005-03-01

    Full Text Available Abstract Background As the use of microarray technology becomes more prevalent it is not unusual to find several laboratories employing the same microarray technology to identify genes related to the same condition in the same species. Although the experimental specifics are similar, typically a different list of statistically significant genes result from each data analysis. Results We propose a statistically-based meta-analytic approach to microarray analysis for the purpose of systematically combining results from the different laboratories. This approach provides a more precise view of genes that are significantly related to the condition of interest while simultaneously allowing for differences between laboratories. Of particular interest is the widely used Affymetrix oligonucleotide array, the results of which are naturally suited to a meta-analysis. A simulation model based on the Affymetrix platform is developed to examine the adaptive nature of the meta-analytic approach and to illustrate the usefulness of such an approach in combining microarray results across laboratories. The approach is then applied to real data involving a mouse model for multiple sclerosis. Conclusion The quantitative estimates from the meta-analysis model tend to be closer to the "true" degree of differential expression than any single lab. Meta-analytic methods can systematically combine Affymetrix results from different laboratories to gain a clearer understanding of genes' relationships to specific conditions of interest.

  4. Higgs Results from CMS

    Science.gov (United States)

    Bornheim, Adolf

    2014-03-01

    The Nobel Prize in physics 2013 has been awarded to François Englert and Peter W. Higgs for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles which plays a crucial role in our understanding of electro-weak symmetry breaking. I will review the experimental results manifesting the discovery of the so called Higgs boson from the perspective of the Compact Muon Solenoid (CMS) collaboration. The review is based on the final results from the proton-proton collision data at 7 TeV and 8 TeV center-of-mass energy, collected in 2011 and 2012 in the initial run of the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN). Results on the properties of the new particle with a mass around 125 GeV, all in agreement with the expectations for the Standard Model (SM) Higgs boson, are highlighted. Latest results on the couplings between the Higgs and fermionic fields, in particular the final results of searches for a Higgs boson decaying into a b-quark or a tau-lepton pair, are presented. Non-SM Higgs searches are briefly summarized. Future perspectives for Higgs physics with CMS at LHC for the next data taking period starting in 2015 and beyond are discussed. CMS Collaboration.

  5. Total 2003 Results

    International Nuclear Information System (INIS)

    This document presents the 2003 results of Total Group: consolidated account, special items, number of shares, market environment, 4. quarter 2003 results, full year 2003 results, upstream (key figures, proved reserves), downstream key figures, chemicals key figures, parent company accounts and proposed dividends, 2004 sensitivities, summary and outlook, operating information by segment for the 4. quarter and full year 2003: upstream (combined liquids and gas production by region, liquids production by region, gas production by region), downstream (refinery throughput by region, refined product sales by region, chemicals), impact of allocating contribution of Cepsa to net operating income by business segment: equity in income (loss) and affiliates and other items, Total financial statements: consolidated statement of income, consolidated balance sheet (assets, liabilities and shareholder's equity), consolidated statements of cash flows, business segments information. (J.S.)

  6. Results from SAGE II

    International Nuclear Information System (INIS)

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first nine runs of SAGE II give a capture rate of 66-13+18 (stat) -7+5 (sys) SNU. Combined with the SAGE I result of 73-16+18 (stat) -75 (sys) SNU, the capture rate is 69-11+11 (stat) -7+5 (sys) SNU. This represents only 52%--56% of the capture rate predicted by different Standard Solar Models

  7. New Results from RENO

    OpenAIRE

    Seo, Seon-hee

    2013-01-01

    RENO (Reactor Experiment for Neutrino Oscillation) is an experiment dedicated to measure the smallest neutrino mixing angle {\\theta}_13 using reactor neutrinos in Korea. Our first result measured in 2012 using about 220 live days of data showed non-zero {\\theta}_13 value with 4.9 {\\sigma} significance. In March 2013 we updated our first result with improvements in both statistical and systematic errors using 403 live days of data. The measured value using rate-only analysis is sin^2(2{\\theta}...

  8. Recent CMS Results

    OpenAIRE

    Dorigo, Tommaso

    2012-01-01

    The CMS experiment obtained a large number of groundbreaking results from the analysis of 7- and 8-TeV proton-proton collisions produced so far by the Large Hadron Collider at CERN. In this brief summary only a sample of those results will be discussed. A new particle with mass m(H) = 125.3 +- 0.4(stat.) +- 0.5(syst.) GeV and characteristics compatible with those expected for a standard model Higgs boson has been observed in its decays to photon pairs, WW pairs, and ZZ pairs. Searches for the...

  9. Recent results from PEP

    International Nuclear Information System (INIS)

    Preliminary results are presented for the data taken by the MARK II and MAC collaborations at the PEP storage ring. Results include measurements of QED processes, limits on the weak couplings g/sub V/ and g/sub A/, limits on anomalous lepton production, the measurement of the tau lifetime, scale violation in inclusive hadron production, Monte Carlo independent tests of QCD using energy-energy correlations and single jet energy moments, measurements of the properties of three jet events, and measurements of proton, neutral kaon, lambda and proton pair yields

  10. Recent results from PEP

    Energy Technology Data Exchange (ETDEWEB)

    Hollebeek, R.

    1981-10-01

    Preliminary results are presented for the data taken by the MARK II and MAC collaborations at the PEP storage ring. Results include measurements of QED processes, limits on the weak couplings g/sub V/ and g/sub A/, limits on anomalous lepton production, the measurement of the tau lifetime, scale violation in inclusive hadron production, Monte Carlo independent tests of QCD using energy-energy correlations and single jet energy moments, measurements of the properties of three jet events, and measurements of proton, neutral kaon, lambda and proton pair yields.

  11. HIGGS RESULTS FROM ATLAS

    CERN Document Server

    Benhar Noccioli, Eleonora; The ATLAS collaboration

    2016-01-01

    This document presents the most recent ATLAS results on the searches for additional heavy scalars, which could confirm the existence of an extended Higgs sector. The new results include searches for charged as well as for neutral heavy Higgs bosons, decaying to a variety of final states. All analyses are performed using the 2015 LHC pp collision data at 13 TeV centre-of-mass energy, corresponding to an integrated luminosity of 3.2 fb−1 recorded with the ATLAS detector.

  12. Higgs results from ATLAS

    CERN Document Server

    Chen, Xin; The ATLAS collaboration

    2015-01-01

    The updated Higgs measurements in different search channels with Run 1 data is reviewed. Results for Beyound Standard Model Higgs searches such as the charged Higgs, the invisible decay and the tensor coupling are also given. Finally, prospects for Run2/3 Higgs search are briefly shown.

  13. Recent CDF results

    Energy Technology Data Exchange (ETDEWEB)

    Gomez, Gervasio; /Cantabria Inst. of Phys.

    2007-11-01

    As of November of 2007, the CDF detector has recorded approximately 2.7 fb{sup -1} of data. This contribution describes some of the most recent and most relevant results from the CDF collaboration in all areas of its wide physics program, as well as some insights into the Tevatron reach for Higgs searches within the next few years.

  14. Physics results from ALICE

    CERN Document Server

    Ramello, Luciano

    2015-01-01

    In this lecture I present the status of experimental search and study of the Quark-Gluon Plasma in Pb-Pb collisions at the CERN LHC by the ALICE Collaboration based on the data-taking during years 2010-13 (LHC Run 1), as well as results from pp and p-Pb collisions

  15. Chapter 5: Monitoring results

    DEFF Research Database (Denmark)

    Poel, Bart; Thomsen, Kirsten Engelund; Schultz, Jørgen Munthe

    2003-01-01

    The monitoring results from the IEA Task 13 project "Advanced solar low energy houses" are described in this chapter. The underlying information was collected in the form of questionnaires. The questionnaires were formulated in such a way that participants are provided with a uniform lay-out to f...

  16. Top Quark Results

    CERN Document Server

    ATLAS collaboration; LHCb collaboration

    2016-01-01

    Measurements of top quarks from Run-I and Run-II of the LHC are presented. Results on differential and inclusive top quark production cross sections, measured by the ATLAS, CMS and LHCb experiments, and measurements of top quark properties and mass are reported.

  17. Quantitative QCD: recent results

    International Nuclear Information System (INIS)

    We discuss some recent results in the phenomenology of perturbative QCD. Special emphasis is put on the ambiguities of the theoretical predictions and on low they affect the determination of the physical parameters. Recent calculations concerning jet and photon production at large momentum transfer are reviewed and two examples of calculations in the next-to-next to leading logarithm approximation are mentioned. (author)

  18. Reporting Research Results Effectively

    Science.gov (United States)

    Volkwein, J. Fredericks

    2010-01-01

    Assessment research is at its best when it packages research results and data so that they can be digested by multiple audiences. Too many assessment researchers spend all their efforts planning and executing the research project with little attention to closing the loop at the end. If assessment findings are not communicated effectively, the…

  19. NIH Research to Results

    Science.gov (United States)

    ... Home Current Issue Past Issues Cover Story: Traumatic Brain Injury NIH Research to Results Past Issues / Fall 2008 Table of ... of stem cells to repair or replace damaged brain tissue is also a new avenue of research. Another important area of research involves the development ...

  20. Andrzej Lasota's selected results

    OpenAIRE

    Józef Myjak

    2008-01-01

    In this article we recall Andrzej Lasota's selected results which either indicated new directions of research, or layed the foundations for new approaches, or solved interesting problems. The area of mathematical interests of Professor Andrzej Lasota was very large: ordinary differential equations, partial differential equations, dynamical systems, multifunctions, differential inclusions, functional differential equations, equations with retarded arguments, ergodic theory, invariant measures,...

  1. Results of CPLEAR

    International Nuclear Information System (INIS)

    The CPLEAR experiment uses tagged K0 and K0 produced in pp annihilation at rest to measure CP-, T- and CPT-violation parameters in the neutral kaon system. The results of these measurements and some implications are reported. (orig.)

  2. Roadmap of Infinite Results

    DEFF Research Database (Denmark)

    Srba, Jiří

    2002-01-01

    This paper provides a comprehensive summary of equivalence checking results for infinite-state systems. References to the relevant papers will be updated continuously according to the development in the area. The most recent version of this document is available from the web-page http://www.brics.dk/~srba/roadmap....

  3. FLUCTUATION RESULTS FRO PHENIX.

    Energy Technology Data Exchange (ETDEWEB)

    MITCHELL, J.T.

    2005-04-21

    The PHENIX Experiment at the Relativistic Heavy Ion Collider has made measurements of event-by-event fluctuations in the net charge, the mean transverse momentum, and the charged particle multiplicity as a function of collision energy, centrality, and transverse momentum in heavy ion collisions. The results of these measurements will be reviewed and discussed.

  4. Review of LEP results

    CERN Document Server

    Parodi, F

    2001-01-01

    I present a review of the results obtained during 10 years of activity in b-physics at LEP. Special emphasis is put on measurements that attained precisions not even envisaged at the beginning of the LEP programme (V/sub ub/ and Delta m/sub s/). Finally the impact of these measurements on the CKM parameters determination is presented. (16 refs).

  5. Recent MILC spectrum results

    OpenAIRE

    Bernard, C.; Blum, T.; DeGrand, T. A.; DeTar, C.; Gottlieb, Steve; Heller, Urs M.; Hetrick, J.; McNeile, C.; K. Rummukainen(University of Helsinki, Helsinki, Finland); Sugar, R. L.; Toussaint, Doug; Wingate, M

    1996-01-01

    We report on results from three spectrum calculations with staggered quarks: 1) a quenched calculation with the standard action for the gluons and quarks; 2) a quenched calculation with improved actions for both the gluons and quarks; and 3) a calculation with two flavors of dynamical quarks using the standard actions for the gluons and quarks.

  6. RTE annual results 2005

    International Nuclear Information System (INIS)

    This annual report presents the results of the RTE (Electric power Transport Network). The year 2005 is marked by the new status of RTE, as a limited company. The financial good performances, the market, the open network, the environmental policy, the human resources and the european and international relations are discussed. (A.L.B.)

  7. Recent results from HELIOS

    Directory of Open Access Journals (Sweden)

    Back B. B.

    2011-10-01

    Full Text Available Transfer and inelastic scattering reactions using light-ion beams and stable or long-lived targets have traditionally provided detailed information on the structure of nuclei near the line of beta stability. Such studies can now be extended to nuclei away from the line of β-stability as radioactive beams are becoming available at a number of facilities around the world, including the CARIBU facility at Argonne. These measurements must, however, be carried out in inverse kinematics, resulting in a loss of the effective experimental resolution when conventional detection schemes are employed. The HELIOS spectrometer is based on a new concept, that is especially well suited for such studies by reducing the resolution problem, providing simple particle identification, and giving high detection efficiency with moderate Si detector area. In this talk, the HELIOS concept and results from the first series of experiments will be presented.

  8. Final NOMAD results on $\

    CERN Document Server

    Astier, Pierre; Baldisseri, Alberto; Baldo-Ceolin, Massimilla; Banner, M; Bassompierre, Gabriel; Benslama, K; Besson, N; Bird, I; Blumenfeld, B; Bobisut, F; Bouchez, J; Boyd, S; Bueno, A G; Bunyatov, S A; Camilleri, L L; Cardini, A; Cattaneo, Paolo Walter; Cavasinni, V; Cervera-Villanueva, A; Chukanov, A; Collazuol, G; Conforto, G; Conta, C; Contalbrigo, M; Cousins, R D; Daniels, D C; Degaudenzi, H M; Del Prete, T; De Santo, A; Dignan, T; Di Lella, L; do Couto e Silva, E; Dumarchez, J; Ellis, M; Feldman, G J; Ferrari, R; Ferrère, D; Flaminio, Vincenzo; Fraternali, M; Gaillard, Jean-Marc; Gangler, E; Geiser, A; Geppert, D; Gibin, D; Gninenko, S N; Godley, A; Gómez-Cadenas, J J; Gosset, J; Gössling, C; Gouanère, M; Grant, A; Graziani, G; Guglielmi, A M; Hagner, C; Hernando, J; Hubbard, D B; Hurst, P; Hyett, N; Iacopini, E; Joseph, C L; Juget, F R; Kirsanov, M M; Klimov, O L; Kokkonen, J; Kovzelev, A; Krasnoperov, A V; Kustov, D V; Kuznetsov, V E; Lacaprara, S; Lachaud, C; Lakic, B; Lanza, A; La Rotonda, L; Laveder, M; Letessier-Selvon, A A; Lévy, J M; Linssen, Lucie; Ljubicic, A; Long, J; Lupi, A; Marchionni, A; Martelli, F; Méchain, X; Mendiburu, J P; Meyer, J P; Mezzetto, Mauro; Mishra, S R; Moorhead, G F; Naumov, D V; Nédélec, P; Nefedov, Yu A; Nguyen-Mau, C; Orestano, D; Pastore, F; Peak, L S; Pennacchio, E; Pessard, H; Petti, R; Placci, Alfredo; Polesello, G; Pollmann, D; Polyarush, A Yu; Popov, B; Poulsen, C; Rico, J; Riemann, P; Roda, C; Rubbia, André; Salvatore, F; Schahmaneche, K; Schmidt, B; Schmidt, T; Sconza, A; Sevior, M E; Sillou, D; Soler, F J P; Sozzi, G; Steele, D; Stiegler, U; Stipcevic, M; Stolarczyk, T; Tareb-Reyes, M; Taylor, G N; Tereshchenko, V V; Toropin, A N; Touchard, A M; Tovey, Stuart N; Tran, M T; Tsesmelis, E; Ulrichs, J; Vacavant, L; Valdata-Nappi, M; Valuev, V Yu; Vannucci, François; Varvell, K E; Veltri, M; Vercesi, V; Vidal-Sitjes, G; Vieira, J M; Vinogradova, T G; Weber, F V; Weisse, T; Wilson, F F; Winton, L J; Yabsley, B D; Zaccone, Henri; Zuber, K; Zuccon, P; Krasnoperov, A V

    2001-01-01

    Results from the nu_tau appearance search in a neutrino beam using the full NOMAD data sample are reported. A new analysis unifies all the hadronic tau decays, significantly improving the overall sensitivity of the experiment to oscillations. The "blind analysis" of all topologies yields no evidence for an oscillation signal. In the two-family oscillation scenario, this sets a 90% C.L. allowed region in the sin^2(2theta)-Delta m^2 plane which includes sin^2(2theta)nu_tau oscillation hypothesis results in sin^2(2theta)<1.5 x 10^{-2} at large Delta m^2 and Delta m^2 < 5.9 eV^2/c^4 at sin^2(2theta)=1. We also derive limits on effective couplings of the tau lepton to nu_mu or nu_e.

  9. Neutrino mass: Recent results

    International Nuclear Information System (INIS)

    Some recent developments in the experimental search for neutrino mass are discussed. Simpson and Hime report finding new evidence for a 17-keV neutrino in the β decay of 3H and 35S. New data from Los Alamos on the electron neutrino mass as measured in tritium beta decay give an upper limit of 13.5 eV at the 95% confidence level. This result is not consistent with the long-standing ITEP result of 26(5) eV within a ''model-independent'' range of 17 to 40 eV. It now appears that the electron neutrino is not sufficiently massive to close the universe by itself. 38 refs., 1 figs., 2 tabs

  10. Solar results purchasing

    International Nuclear Information System (INIS)

    Solar Thermal water heating has made little market penetration in some European countries. The main barriers to market development are: Long payback periods for the technology; Difficulties for the end-user in meeting the initial capital costs of the installation; Lack of confidence in the delivered energy that can be expected from the technology. The third barrier has been addressed using the concept of Guaranteed Solar Results (GSR). This project has addressed the other two main barriers using the concept of Solar Results Purchasing, (SRP) which combines GSR with Third Party Financing. The work was carried out in the UK, France, and Spain. The project used a uniform approach across the three countries. Each team calculated solar performance using an English version of the SOLO programme developed by TECSOL in France to encode the methodology for GSR model contracts. (author)

  11. New results from RENO

    Science.gov (United States)

    Seo, Seon-Hee; RENO Collaboration

    2014-09-01

    Neutrino oscillation is well known but one of the oscillation parameters, θ13, has not been well measured until 2012. The main goal of RENO (Reactor Experiment for Neutrino Oscillation) is to measure the θ13 using reactor neutrinos. RENO is located in Yonggwang, South Korea, where there are six reactor cores with a total of 16.5 GWth. By detecting the electron anti-neutrinos from nuclear fission processes from the reactors, RENO measured (4.9 sigma) the θ13 in 2012 with 220 live days of data. Since then we have been updating our results more precisely with increased statistics and improved systematics. In this talk, we would like to present our new results (800 live days of data) obtained by a shape analysis method. Excess of neutrino-like events at 5 MeV seen in our data is also discussed.

  12. New Results from RENO

    CERN Document Server

    ,

    2013-01-01

    RENO (Reactor Experiment for Neutrino Oscillation) is an experiment dedicated to measure the smallest neutrino mixing angle {\\theta}_13 using reactor neutrinos in Korea. Our first result measured in 2012 using about 220 live days of data showed non-zero {\\theta}_13 value with 4.9 {\\sigma} significance. In March 2013 we updated our first result with improvements in both statistical and systematic errors using 403 live days of data. The measured value using rate-only analysis is sin^2(2{\\theta}_13) = 0.100 +/- 0.010 (stat) +/- 0.015 (sys.) corresponding to 6.3 {\\sigma} significance. RENO has been taking data almost continuously since August 2011 and we have reached more than 800 live days of data that is currently being analyzed.

  13. Dosimetric results on EURECA

    Energy Technology Data Exchange (ETDEWEB)

    Reitz, G.

    1995-02-01

    Detector packages were exposed on the European Retrievable Carrier (EURECA) as part of the Biostack experiment inside the Exobiology and Radiation Assembly (ERA) and at several locations around EURECA. The packages consist of different plastic nuclear track detectors, nuclear emulsions and thermoluminescence dosimeters (TLD`s). Evaluation of these detectors yields data on absorbed dose and particle and LET spectra. Preliminary results of absorbed dose measurements in the EURECA dosimeter packages are reported and compared to results of the LDEF experiments. The highest dose rate measured on EURECA is 63.3 plus or minus 0.4 mGy d(exp -1) behind a shielding thickness of 0.09 g cm(exp -2) in front of the detector package.

  14. Recent results from CMS

    Directory of Open Access Journals (Sweden)

    Schöfbeck Robert

    2015-01-01

    Full Text Available The CMS experiment at the Large Hadron Collider at CERN collected a dataset of 19.5fb−1 during 8 TeV proton-proton operation. A large number of groundbreaking results were obtained from the analysis of this dataset, among them the discovery of the Higgs boson and precision measurements of important Standard Model parameters, for example the mass of the top quark. Subtle processes like the production of a Z boson by fusion of two W bosons have been measured for the first time. Moreover, many searches for physics beyond the Standard model have been carried out, both in the context of supersymmetry and beyond, which often provide tight constraints in model parameter space. This brief summary is a a short overview of the most important recent CMS results at 7 and 8 TeV.

  15. Results from AMANDA

    OpenAIRE

    Hill, Gary C.; collaboration, for the AMANDA

    2001-01-01

    The AMANDA (Antarctic Muon And Neutrino Detector Array) detector, located at the South Pole station, Antarctica, was recently expanded with the addition of six new strings, completing the phase referred to as AMANDA-II. This detector has been calibrated and in operation since January 2000. The first data analyses are currently underway. In this report we present an update on the results from the AMANDA-B10 detector, which operated during the austral winter 1997.

  16. Results from PLUTO

    International Nuclear Information System (INIS)

    Results on the reaction e+ e- → μ+ μ- are presented. The data were taken with the PLUTO detector at the c.m. energy of 34.7 GeV. In the integrated luminosity of 44000 nb-1 taken, a forward backward asymmetry of -(12.0 + or - 3.2)% is observed for abs. value costheta <1 which is in agreement with the standard model

  17. Results from SAGE

    International Nuclear Information System (INIS)

    The Russian-American Gallium Solar Neutrino Experiment (SAGE) is described. Beginning in September 1992, SAGE II data were taken with 55 tons of Ga and with significantly reduced backgrounds. The solar neutrino flux measured by 31 extractions through October 1993 is presented. The result of 69 ± 10 +5/-7 SNU is to be compared with a Standard Solar Model prediction of 132 SNU

  18. Overview of HERMES results

    OpenAIRE

    Van Hulse Charlotte

    2016-01-01

    The HERMES experiment has collected a wealth of deep-inelastic scattering data using the 27.6 GeV polarized lepton beam at HERA and various pure gas targets, both unpolarized and polarized. This allowed for a series of diverse and unique measurements. Among them are measurements that provide information on the threedimensional structure of the nucleon, both in momentum space and in position space. Results of measurements of exclusive ω production on an unpolarized and transversely polarized n...

  19. Enova. Result Report 2003

    International Nuclear Information System (INIS)

    Enova is a state enterprise owned by the Oil and Energy Department, and it has been operative since 1st of January 2002. Its main objective is to work for the advancement of a more environmental energy consumption and energy production in Norway. 500 million NOK are annually administered by Enova and allocated to different energy projects. A brief account of the results from 2003 is presented

  20. Enova. Result Report 2004

    International Nuclear Information System (INIS)

    Enova is a state enterprise owned by the Oil and Energy Department, and has been operative since 1st of January 2002. Its main vision is to be a driving force for future-oriented energy solutions. The Energy fund is administered by Enova, and the resources are distributed to different projects that contribute to energy savings and new, environmental technology. A brief account of the results from 2004 is presented

  1. Theoretical Results on Neutrinos

    CERN Document Server

    Zhou, Shun

    2015-01-01

    In this talk, I first summarize our current knowledge about the fundamental properties of neutrinos and emphasize the remaining unsolved problems in neutrino physics. Then, recent theoretical results on neutrino mass models are introduced. Different approaches to understanding tiny neutrino masses, lepton flavor mixing and CP violation are presented. Finally, I report briefly some new progress in the studies of astrophysical neutrinos, including keV sterile neutrinos, supernova neutrinos and ultrahigh-energy cosmic neutrinos.

  2. Space Shuttle radargrammetry results

    Science.gov (United States)

    Leberl, F.; Domik, G.; Raggam, J.; Cimino, J.; Kobrick, M.

    1986-01-01

    Preliminary results on the radargrammetric processing of SIR-A and SIR-B data are presented. Radargrammetric processing was applied to images of the Trinity National Forest in Northern California, the islands of Cephalonia, Ithaka, and Sardegna, Mt. Shasta, and Cordon La Grasa, Argentina. The preliminary processing of the SIR-A and SIR-B data has produced digital elevation models, stereo models, and a contour map.

  3. Recent results from LEP

    Indian Academy of Sciences (India)

    A Gurtu

    2000-04-01

    Recent results from the LEP collider at CERN are presented: on the identification of +- → +- and the determination of the mass and width and limits on its anomalous couplings; the search for the Standard Model and non-minimal Higgs; search for SUSY and other new particles. Fits to all electroweak data leading to predictions of the Higgs mass within the Standard Model are presented.

  4. Assessing ultrasonic examination results

    International Nuclear Information System (INIS)

    Amongst nondestructive examination methods, the ultrasonic examination plays an important role. The reason why its scope of application is so wide is because the sound conducting capacity is the only property the material of a test specimen has to have. As the fields are so manifold, only main aspects can be described briefly. The list of references, however, is very extensive and gives plenty of information of all the problems concerning the assessment of ultrasonic examination results. (orig./RW)

  5. GIRAFFE test results summary

    Energy Technology Data Exchange (ETDEWEB)

    Yokobori, S.; Arai, K.; Oikawa, H. [Toshiba Corporation, Kawasaki (Japan)

    1996-03-01

    A passive system can provide engineered safety features enhancing safety system reliability and plant simplicity. Toshiba has conducted the test Program to demonstrate the feasibility of the SBWR passive safety system using a full-height, integral system test facility GIRAFFE. The test facility GIRAFFE models the SBWR in full height to correctly present the gravity driving head forces with a 1/400 volume scale. The GIRAFFE test Program includes the certification tests of the passive containment cooling system (PCCS) to remove the post-accident decay heat and the gravity driven cooling system (GDCS) to replenish the reactor coolant inventory during a LOCA. The test results have confirmed the PCCS and GDCS design and in addition, have demonstrated the operation of the pCCS with the presence of a lighter-than-steam noncondensable as well as with the presence of a heavier-than-steam, noncondensable. The GIRAFFE test Program has also provided the database to qualify a best estimate thermal-hydraulic computer code TRAC. The post test analysis results have shown that TRAC can accurately predict the PCCS heat removal Performance and the containment pressure response to a LOCA. This paper summarizes the GIRAFFE test results to investigate post-LOCA PCCS heat removal performance and post-test analysis using TRAC.

  6. Recent CMS Results

    CERN Document Server

    Dorigo, Tommaso

    2012-01-01

    The CMS experiment obtained a large number of groundbreaking results from the analysis of 7- and 8-TeV proton-proton collisions produced so far by the Large Hadron Collider at CERN. In this brief summary only a sample of those results will be discussed. A new particle with mass m(H) = 125.3 +- 0.4(stat.) +- 0.5(syst.) GeV and characteristics compatible with those expected for a standard model Higgs boson has been observed in its decays to photon pairs, WW pairs, and ZZ pairs. Searches for the rare decays B_d -> mu mu and B_s -> mu mu have allowed to set limits on the branching fractions which are close to standard model predictions, strongly constraining new physics models. The top quark has been studied with great detail, obtaining among other results the world's best measurement of its mass as m(top) = 173.49 +- 0.43(stat. + JES) +- 0.98(syst.) GeV. New physics models have been strongly constrained with the available data.

  7. Pressure locking test results

    Energy Technology Data Exchange (ETDEWEB)

    DeWall, K.G.; Watkins, J.C.; McKellar, M.G.; Bramwell, D. [Idaho National Engineering Lab., Idaho Falls, ID (United States)] [and others

    1996-12-01

    The U.S. Nuclear Regulatory Commission (NRC), Office of Nuclear Regulatory Research, is funding the Idaho National Engineering Laboratory (INEL) in performing research to provide technical input for their use in evaluating responses to Generic Letter 95-07, {open_quotes}Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves.{close_quotes} Pressure locking and thermal binding are phenomena that make a closed gate valve difficult to open. This paper discusses only the pressure locking phenomenon in a flexible-wedge gate valve; the authors will publish the results of their thermal binding research at a later date. Pressure locking can occur when operating sequences or temperature changes cause the pressure of the fluid in the bonnet (and, in most valves, between the discs) to be higher than the pressure on the upstream and downstream sides of the disc assembly. This high fluid pressure presses the discs against both seats, making the disc assembly harder to unseat than anticipated by the typical design calculations, which generally consider friction at only one of the two disc/seat interfaces. The high pressure of the bonnet fluid also changes the pressure distribution around the disc in a way that can further contribute to the unseating load. If the combined loads associated with pressure locking are very high, the actuator might not have the capacity to open the valve. The results of the NRC/INEL research discussed in this paper show that the relationship between bonnet pressure and pressure locking stem loads appears linear. The results also show that for this valve, seat leakage affects the bonnet pressurization rate when the valve is subjected to thermally induced pressure locking conditions.

  8. Scientific results report 1980

    International Nuclear Information System (INIS)

    The report describes in concise form the research tasks and results of the work groups pulsed irradiation, reaction kinematics and insulators and plastics in the field of 'radiation chemistry' of the Hahn-Meitner Institute, Berlin. The main topic of investigation was the kinetics and dynamics of fast chemical processes, the setting-up of chemical reaction mechanisms and research of chemical physical properties of highly reactive species (radicals, ions, electrons). A list of publications and lectures as well as teaching contributions of the institute's scientists, diploma and doctor theses performed in the institute and guest lectures held there is also given. (RB)

  9. First LHC Results

    CERN Document Server

    Horn, Claus; The ATLAS collaboration

    2010-01-01

    Since four month the Large Hadron Collider (LHC) is producing proton-proton collisions with a center of mass energy of 7 TeV offering the potential of directly producing dark matter particles in an energy range never reached before in accelerator-based particle physics. First the performance and first Standard Model measurements of the general purpose experiments CMS and ATLAS is presented. This talk then focuses on their potential to detect dark matter candidates. Results from ongoing physics analyzes are presented and expectations for possible future discoveries are discussed.

  10. Recent results from ARGUS

    International Nuclear Information System (INIS)

    The ARGUS experiment, running at the DORIS II storage ring, has been collecting data on e+e- collisions near 10 GeV region since the end of 1982. The ARGUS detector, designed specifically for large acceptance and high resolution spectroscopy in the UPSILON resonances region, has produced a prolific amount of new results in recent months. Some of these are presented here. The subject matters include topics from charm and beauty spectroscopy and weak decays of charm mesons, beauty mesons and the tauon

  11. Latest LHCb results

    Science.gov (United States)

    Martinelli, Maurizio

    2014-11-01

    The LHCb experiment is one of the major research projects at the Large Hadron Collider. Its acceptance and instrumentation is optimised to perform high-precision studies of flavour physics and particle production in a unique kinematic range at unprecedented collision energies. Using large data samples accumulated in the years 2010-2012, the LHCb collaboration has conducted a series of measurements providing a sensitive test of the Standard Model and strengthening our knowledge of flavour physics, QCD and electroweak processes. The status of the experiment and some of its recent results are presented here.

  12. Recent result from RENO

    Science.gov (United States)

    Seo, Hyunkwan; RENO Collaboration

    2016-05-01

    The Reactor Experiment for Neutrino Oscillation (RENO) started data-taking from August, 2011 and has measured the smallest neutrino mixing angle θ13 by observing the disappearance of reactor antineutrinos. Antineutrinos from the six reactors at Hanbit Nuclear Power Plant in Korea are detected and compared by the two identical detectors located in the near and far distances from the reactor array center. We present new results on precisely measured sin 22θ13 value and |Δm2 ee| based on spectral analysis using the 800 days of data sample, which are taken from August, 2011 to Dec., 2013.

  13. Recent results from CMS

    CERN Document Server

    Dordevic, Milos

    2016-01-01

    The highlights of the most recent CMS results with 13 TeV data will be presented in this overview. The Standard Model precision measurements, including the top quark production, will be shown first. This will be followed by the presentation of Higgs boson studies with the early 13 TeV data. Then the focus will shift to searches for physics beyond the Standard Model, including the searches for several Supersymmetric scenarios, using different analysis techniques. The talk will conclude with searches for the exotic resonances, with an emphasis on studies of the high-mass diphoton production.

  14. Results from neutrino experiments

    International Nuclear Information System (INIS)

    Recent (first or/and the best) results from the neutrino experiments are reviewed and their implications for the theory are discussed. The sense of the experiments is the searching for neutrino masses, mixing and interactions beyond the standard model. Present laboratory experiments give upper bounds on the masses and the mixing which are at the level of predictions of the ''electroweak see-saw''. Positive indications of nonzero lepton mixing follow from studies of the solar and atmospheric neutrinos. (author). 95 refs, 11 figs

  15. Mersenne Numbers: consolidated results

    OpenAIRE

    Haworth, Guy McCrossan; Holmes, Steve; Hunt, David; Lake, Tom; Reddaway, Stewart

    1986-01-01

    This document provides and comments on the results of the Lucas-Lehmer testing and/or partial factorisation of all Mersenne Numbers Mp = 2^p-1 where p is prime and less than 100,000. Previous computations have either been confirmed or corrected. The LLT computations on the ICL DAP is the first implementation of Fast-Fermat-Number-Transform multiplication in connection with Mersenne Number testing. This paper championed the disciplines of systematically testing the Mp, and of double-so...

  16. Latest LHCb results

    Directory of Open Access Journals (Sweden)

    Martinelli Maurizio

    2014-01-01

    Full Text Available The LHCb experiment is one of the major research projects at the Large Hadron Collider. Its acceptance and instrumentation is optimised to perform high-precision studies of flavour physics and particle production in a unique kinematic range at unprecedented collision energies. Using large data samples accumulated in the years 2010-2012, the LHCb collaboration has conducted a series of measurements providing a sensitive test of the Standard Model and strengthening our knowledge of flavour physics, QCD and electroweak processes. The status of the experiment and some of its recent results are presented here.

  17. Results in the Past

    OpenAIRE

    Wang, Ge

    2010-01-01

    Past research results include the following: • Modern CT scanners that use spiral-beam scanning and perform >100-million scans annually in the USA • Construction of the only 500nm resolution micro-CT system on the East Coast and the only 50nm nano-CT system with the interior tomography capability in the world from inside the walls of SAM-CT x-ray imaging facility • With further promise to handle large objects, reduce radiation dose, and improve temporal resolution, Interior tomography has alr...

  18. Recent BABAR Results

    Energy Technology Data Exchange (ETDEWEB)

    Eigen, Gerald [University of Bergen, Bergen (Norway). Dept. of Physics

    2015-04-29

    We present herein the most recent BABAR results on direct CP asymmetry measurements in B → Xsγ, on partial branching fraction and CP asymmetry measurements in B → Xs+-, on a search for B → π/ηℓ+- decays, on a search for lepton number violation in B+ → X-+ℓ'+ modes and a study of B0 →ωω and B0 → ωφ decays.

  19. First result from Qweak

    Energy Technology Data Exchange (ETDEWEB)

    Armstrong, David S. [William and Mary College, JLAB

    2014-06-01

    Initial results are presented from the recently-completed Q{sub weak} experiment at Jefferson Lab. The goal is a precise measurement of the proton's weak charge Q{sub w}{sup p}, to yield a test of the standard model and to search for evidence of new physics. The weak charge is extracted from the parity-violating asymmetry in elastic {rvec e}p scattering at low momentum transfer, Q{sup 2} = 0.025 GeV{sup 2}. A 180 {micro} A longitudinally-polarized 1.16 GeV electron beam was scattered from a 35 cm long liquid hydrogen at small angles, 6 {degrees} < {theta} < 12 {degrees} Scattered electrons were analyzed in a toroidal magnetic field and detected using an array of eight Cerenkov detectors arranged symmetrically about the beam axis. The initial result, from 4% of the complete data set, is Q{sub W}{sup p} = 0.064 ± 0.012, in excellent agreement with the standard model expectation. Full analysis of the data is expected to yield a value for the weak charge to about 5% precision.

  20. Latest Double Chooz results

    Science.gov (United States)

    Lasserre, Thierry; Double Chooz Collaboration

    2016-05-01

    I report the latest results from the Double Chooz experiment on the θ13 neutrino mixing angle. Two detectors are located at distances of 400 m and 1050 m from the reactor cores of the Chooz nuclear power station (France) to measure the disappearance of electron antineutrinos. The far detector has been taking data since 2011, accumulating a live time of 467.90 days (66.5 GW-ton-year). In this article we focus on the latest measurement using neutrino-induced neutron capture on hydrogen. A new analysis improved the signal efficiency and reduced the backgrounds and systematic uncertainties, leading to sin2 2θ 13 = 0.095+0.039 -0.038. When combined with the Gadolinium-based analysis this leads to sin2 2θ13 = 0.088+0.33 -0.033. The distortion from the prediction above a visible energy of 4 MeV is confirmed. The near detector started data taking in 2014 and first results shall be reported in 2016.

  1. Cleanroom energy benchmarking results

    Energy Technology Data Exchange (ETDEWEB)

    Tschudi, William; Xu, Tengfang

    2001-09-01

    A utility market transformation project studied energy use and identified energy efficiency opportunities in cleanroom HVAC design and operation for fourteen cleanrooms. This paper presents the results of this work and relevant observations. Cleanroom owners and operators know that cleanrooms are energy intensive but have little information to compare their cleanroom's performance over time, or to others. Direct comparison of energy performance by traditional means, such as watts/ft{sup 2}, is not a good indicator with the wide range of industrial processes and cleanliness levels occurring in cleanrooms. In this project, metrics allow direct comparison of the efficiency of HVAC systems and components. Energy and flow measurements were taken to determine actual HVAC system energy efficiency. The results confirm a wide variation in operating efficiency and they identify other non-energy operating problems. Improvement opportunities were identified at each of the benchmarked facilities. Analysis of the best performing systems and components is summarized, as are areas for additional investigation.

  2. Unfavourable results in pollicisation

    Directory of Open Access Journals (Sweden)

    Mukund R Thatte

    2013-01-01

    Full Text Available Pollicisation of the index finger is perhaps one of the most complex and most rewarding operations in hand and plastic surgery. It however has a steep learning curve and demands very high skill levels and experience. There are multiple pitfalls and each can result in an unfavourable result. In essence we need to: Shorten the Index, recreate the carpo metacarpal joint from the metacarpo phalangeal (MP joint, rotate the digit by about 120° for pulp to pulp pinch, palmarly abduct by 40-50° to get a new first web gap, Shorten and readjust the tension of the extensors, re attach the intrinsics to form a thenar eminence capable of positioning the new thumb in various functional positions and finally close the flaps forming a new skin envelope. The author has performed over 75 pollicisations personally and has personal experience of some of the issues raised there. The steps mentioned therefore are an algorithm for helping the uninitiated into these choppy waters.

  3. Double Chooz: Latest results

    CERN Document Server

    Crespo-Anadón, J I

    2014-01-01

    The latest results from the Double Chooz experiment on the neutrino mixing angle $\\theta_{13}$ are presented. A detector located at an average distance of 1050 m from the two reactor cores of the Chooz nuclear power plant has accumulated a live time of 467.90 days, corresponding to an exposure of 66.5 GW-ton-year (reactor power $\\times$ detector mass $\\times$ live time). A revised analysis has boosted the signal efficiency and reduced the backgrounds and systematic uncertainties compared to previous publications, paving the way for the two detector phase. The measured $\\sin^2 2\\theta_{13} = 0.090^{+0.032}_{-0.029}$ is extracted from a fit to the energy spectrum. A deviation from the prediction above a visible energy of 4 MeV is found, being consistent with an unaccounted reactor flux effect, which does not affect the $\\theta_{13}$ result. A consistent value of $\\theta_{13}$ is measured in a rate-only fit to the number of observed candidates as a function of the reactor power, confirming the robustness of the ...

  4. Archeomagnetic Results From Spain

    Science.gov (United States)

    Chauvin, A.; Gomez-Paccard, M.; Lanos, P.; Osete, M.; McIntosh, G.; Thiriot, J.

    2007-05-01

    A first secular variation (SV) curve for the Iberian Peninsula was computed by hierarchical Bayesian method using a total of 134 archaeomagnetic directions with ages ranging from 775 BC to 1959 A.D. A general agreement is observed between the Iberian curve and the French and German SV curves, excepted between the 11th and 14th centuries. The analysis of these three reference curves indicates that SV in western Europe is characterized by three major directional changes at 125, 200, and 1350 A.D. It is suggested that these cusps are regional features of the geomagnetic field. Archeointensity studies were also conducted on 24 Spanish archeomagnetic sites (220 AD to 1959 AD). Intensity data were obtained using the original Thellier method with anisotropy and cooling rates corrections. Our new 24 data, together with 62 previously published results, were used to recover, by Bayesian modelling, the geomagnetic field intensity evolution over the past two millennia for western Europe. Our results indicate that the geomagnetic intensity remains more or less constant between the 1st and 4th centuries, and between the 13th and 15th centuries, whereas an important decrease occurs during the last 5 centuries. The evolution of the Earth's magnetic field intensity during High Middle Ages remains uncertain. The available geomagnetic global models predict reasonably well our data.

  5. Organic Separation Test Results

    Energy Technology Data Exchange (ETDEWEB)

    Russell, Renee L.; Rinehart, Donald E.; Peterson, Reid A.

    2014-09-22

    Separable organics have been defined as “those organic compounds of very limited solubility in the bulk waste and that can form a separate liquid phase or layer” (Smalley and Nguyen 2013), and result from three main solvent extraction processes: U Plant Uranium Recovery Process, B Plant Waste Fractionation Process, and Plutonium Uranium Extraction (PUREX) Process. The primary organic solvents associated with tank solids are TBP, D2EHPA, and NPH. There is concern that, while this organic material is bound to the sludge particles as it is stored in the tanks, waste feed delivery activities, specifically transfer pump and mixer pump operations, could cause the organics to form a separated layer in the tank farms feed tank. Therefore, Washington River Protection Solutions (WRPS) is experimentally evaluating the potential of organic solvents separating from the tank solids (sludge) during waste feed delivery activities, specifically the waste mixing and transfer processes. Given the Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste acceptance criteria per the Waste Feed Acceptance Criteria document (24590-WTP-RPT-MGT-11-014) that there is to be “no visible layer” of separable organics in the waste feed, this would result in the batch being unacceptable to transfer to WTP. This study is of particular importance to WRPS because of these WTP requirements.

  6. MUNU final results

    Energy Technology Data Exchange (ETDEWEB)

    Daraktchieva, Zornitza, E-mail: Zornitza.Daraktchieva@unine.ch [Institute de Physique, A.-L. Breguet 1, CH-2000 Neuchatel (Switzerland)

    2011-12-15

    The MUNU detector has been designed to study {nu}{sub e}{sup Macron }e{sup -} elastic scattering at low energy. The central tracking detector is a 1 m{sup 3} Time Projection Chamber surrounded by an anti-Compton detector. In this paper the results from final analysis of the data recorded at 3-bar and 1-bar pressure are presented. At 3-bar a new upper limit on the neutrino magnetic moment {mu}{sub {nu}}<9 Multiplication-Sign 10{sup -11}(7 Multiplication-Sign 10{sup -11}){mu}{sub B} at 90 (68%) C.L. is derived. At 1-bar pressure electron tracks down to 80 keV are measured in the TPC. A {sup 137}Cs photopeak is reconstructed by measuring both the energy and direction of the Compton electrons in the TPC.

  7. Overview of HERMES results

    Science.gov (United States)

    Van Hulse, Charlotte

    2016-03-01

    The HERMES experiment has collected a wealth of deep-inelastic scattering data using the 27.6 GeV polarized lepton beam at HERA and various pure gas targets, both unpolarized and polarized. This allowed for a series of diverse and unique measurements. Among them are measurements that provide information on the threedimensional structure of the nucleon, both in momentum space and in position space. Results of measurements of exclusive ω production on an unpolarized and transversely polarized nucleon target, sensitive to the distribution in transverse-position and longitudinalmomentum space, are discussed as well as the three-dimensional extraction of azimuthal asymmetries measured in semi-inclusive deep-inelastic scattering, sensitive to twist-2 and twist-3 distributions in three-dimensional momentum space.

  8. Overview of HERMES results

    Directory of Open Access Journals (Sweden)

    Van Hulse Charlotte

    2016-01-01

    Full Text Available The HERMES experiment has collected a wealth of deep-inelastic scattering data using the 27.6 GeV polarized lepton beam at HERA and various pure gas targets, both unpolarized and polarized. This allowed for a series of diverse and unique measurements. Among them are measurements that provide information on the threedimensional structure of the nucleon, both in momentum space and in position space. Results of measurements of exclusive ω production on an unpolarized and transversely polarized nucleon target, sensitive to the distribution in transverse-position and longitudinalmomentum space, are discussed as well as the three-dimensional extraction of azimuthal asymmetries measured in semi-inclusive deep-inelastic scattering, sensitive to twist-2 and twist-3 distributions in three-dimensional momentum space.

  9. Recent results from ZEUS

    International Nuclear Information System (INIS)

    Recent results on deep inelastic scattering from the ZEUS collaboration are reviewed. These include studies of neutral and charged currents at high Q2, fragmentation and perturbative QCD, and information on the quark and gluon content of the proton. Information on the gluon density in the proton is obtained from a wide variety of processes, leading to a consistent picture of a steep rise of the gluon density at low x. Preliminary measurements of F2 extending to new regimes at both high and low Q2 and x are presented based on 1994 data. Analysis of events with a large rapidity gap with respect to the direction of the proton beam is consistent with factorisation of the cross-section into a flux factor and a structure function, and can be interpreted as an indication of point-like constituents inside the pomeron. (orig.)

  10. Recent results from LHCf

    Directory of Open Access Journals (Sweden)

    Menjo H.

    2015-01-01

    Full Text Available The LHCf experiment is one of the LHC forward experiments. The aim of LHCf is to provide critical calibration data of hadronic intraction models used in air shower simulations. The LHCf has completed the operations for p-p collisions with a collision energy of √s = 0.9 and 7 TeV p-p in 2010 and for p-Pb collisions with a collision energy per nucleon of √sNN = 5.02. The recent LHCf result of forward neutron energy spectra at 7 TeV p-p collision and forward π0 spectra at p-Pb collisions are presented in this paper.

  11. Recent Results from Phobos

    Science.gov (United States)

    García, Edmundo; Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Busza, W.; Carroll, A.; Chai, Z.; Decowski, M. P.; García, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Halliwell, C.; Hamblen, J.; Hauer, M.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Hołyński, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Khan, N.; Kulinich, P.; Kuo, C. M.; Lin, W. T.; Manly, S.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Reed, C.; Roland, C.; Roland, G.; Sagerer, J.; Seals, H.; Sedykh, I.; Smith, C. E.; Stankiewicz, M. A.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Tonjes, M. B.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Vaurynovich, S. S.; Verdier, R.; Veres, G. I.; Wenger, E.; Wolfs, F. L. H.; Wosiek, B.; Woźniak, K.; Wysłouch, B.

    2007-02-01

    The PHOBOS detector is one of four heavy ion experiments at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. In this paper we will review some of the results of PHOBOS from the data collected in p+p, d+Au and Au+Au collisions at nucleon-nucleon center-of-mass energies up to 200 GeV. Evidence is found of the formation of a very high energy density and highly interactive system, which can not be described in terms of hadrons, and has a relatively low baryon density. There is evidence that the system formed is thermalized to a certain degree. Scaling with the number of participants and extended longitudinal scaling behavior are also observed in distributions of produced charged particles.

  12. Results of DT experiments

    International Nuclear Information System (INIS)

    The results of TFTR DT experiments are reviewed with the author' comments. A maximum fusion power of 10.7MW was produced in TFTR deuterium-tritium (DT) experiments, using nearly equal concentrations of deuterium and tritium. The particle diffusivities of tritium and 4He, and the deuterium thermal diffusivity are of similar magnitudes. Measurements of the loss of alpha particles in DT plasmas show no new loss mechanism. Initial measurements of alpha ash from DT reactions indicate that the transport coefficients of alpha ash are consistent with those for helium introduced to the plasma by gas puffing. DT plasmas with enhanced energy confinement have been obtained in the high poloidal beta. ICRF heating of a DT plasma has demonstrated ion and electron heating. (author)

  13. New results in percolation

    International Nuclear Information System (INIS)

    In this reprint some new results in percolation are reported. As a basic model the two-dimensional system, consisting of the phases with different conductivities, is considered. The phases are placed in a random way and in the double periodic structure also. For two-phase case it is shown that effective conductivity essentially depends on the microgeometry of the medium and the generalization of the Dykhne formula for the parallelogram unit cell is obtained. The percolation under quantum Hall effect conditions is studied by the general approach, using the symmetry of the system. The features of current percolation in QHE regime are established, and the effective characteristics and the local current distributions are found. For the problem of nonlinear percolation the new duality relations for critical exponents, described effective nonlinear current- voltage characteristics, are found. These duality relations are checked by the numerical simulations. (author)

  14. Results from SNO

    International Nuclear Information System (INIS)

    The Sudbury Neutrino Observatory (SNO) is an underground heavy water Cherenkov detector for studying solar neutrinos. SNO is capable of performing both flavor sensitive and flavor blind measurements of the solar neutrino flux. The first charged current (CC) measurement is found to be: ψSNOCC(νe) = 1.75 ± 0.07(stat.)-0.11+0.12(sys.) ± 0.05 (theor.) x 106 cm-2s-1 and the elastic scattering fluxes (ES) is: ψSNOES(νx) = 2.39 ± 0.34(stat.)-0.14+0.16 (sys.) x 106 cm-2s-1. The ψSNOCC(νe) result, when combined with the high statistics elastic scattering (ES) measurement from Super-Kamiokande, provide a strong evidence for solar neutrino flavor transformation (3.3σ). The deduced total solar neutrino flux is in good agreement with standard solar model predictions. No significant distortion in the energy spectrum is observed

  15. Recent results from ANTARES

    Directory of Open Access Journals (Sweden)

    Trovato Agata

    2015-01-01

    Full Text Available Operating 40 km off the coast of France since 2007, the ANTARES detector is the largest deep-sea neutrino telescope in the Northern Hemisphere with an instrumented volume of more than 0.01 cubic kilometers. It consists of an array of 885 photomultipliers detecting the Cherenkov light induced by charged leptons produced by neutrino interactions in and around the detector. The primary goal of ANTARES is to search for astrophysical neutrinos in the TeV–PeV range. This comprises generic searches for any diffuse cosmic neutrino flux as well as more specific searches for astrophysical galactic and extragalactic sources. The search program also includes multi-messenger analyses based on time and/or space coincidences with other cosmic probes. The ANTARES observatory is sensitive to a wide-range of other phenomena, from atmospheric neutrino oscillations to dark matter annihilation. In this contribution, recent results from the ANTARES neutrino telescope will be presented.

  16. VRAC: Simulation Results #1

    CERN Document Server

    Huc, Florian

    2009-01-01

    In order to make full use of geographic routing techniques developed for large scale networks, nodes must be localized. However, localization and virtual localization techniques in sensor networks are dependent either on expensive and sometimes unavailable hardware (e.g. GPS) or on sophisticated localization calculus (e.g. triangulation) which are both error-prone and with a costly overhead. Instead of localizing nodes in a traditional 2-dimensional space, we use directly the raw distance to a set of anchors to route messages in a multi-dimensional space. This should enable us to use any geographic routing protocol in a robust and efficient manner in a very large range of scenarios. We test this technique for two different geographic routing algorithms, namely GRIC and ROAM. The simulation results show that using the raw coordinates does not decrease their efficiency.

  17. Recent results from CMS

    CERN Document Server

    CERN. Geneva

    2016-01-01

    With the increase in center-of-mass energy, a new energy frontier has been opened by the Large Hadron Collider. More than 25 fb^-1 of proton-proton collisions at sqrt(s)=13 TeV have been delivered to both ATLAS and CMS experiments during 2016. This enormous dataset can be used to test the Standard Model in a complete new regime with tremendous precision and it has the potential to unveil new physics or set strong bounds on it. In this talk some of the most recent results made public by the CMS Collaboration will be presented. The focus will mainly be on searches for physics beyond the Standard Model, with particular emphasis on searches for dark matter candidates.

  18. Payment by Results

    Directory of Open Access Journals (Sweden)

    Brendan A. Rapple

    1994-01-01

    Full Text Available Today the public is demanding that it exercise more control over how tax dollars are spent in the educational sphere, with multitudes also canvassing that education become closely aligned to the marketplace's economic forces. In this paper I examine an historical precedent for such demands, i.e. the comprehensive 19th century system of accountability, "Payment by Results," which endured in English and Welsh elementary schools from 1862 until 1897. Particular emphasis is focused on the economic market-driven aspect of the system whereby every pupil was examined annually by an Inspector, the amount of the governmental grant being largely dependent on the answering. I argue that this was a narrow, restrictive system of educational accountability though one totally in keeping with the age's pervasive utilitarian belief in laissez-faire. I conclude by observing that this Victorian system might be suggestive to us today when calls for analogous schemes of educational accountability are shrill.

  19. Scientific results - report 1981

    International Nuclear Information System (INIS)

    During the year under report 1981, five working groups were active in the field of nuclear chemistry: neutron diffraction, radiation damage in solids, reactor chemistry, trace element research in bio-medicine and geo-chemistry. The objectives of the R+D projects ranged from the more basic research to the development of technological processes. Nuclear inspection methodes that have already been developed (e.g. neutron diffraction, trace element analysis) have increasingly been used in an interdisciplinary way. Besides these R+D projects the project of increase of power of the BER II was pursued also in 1981, and further planning documents on the extension of the BER II have been established. The report informs about the most important results of the single sections. A list of the publications (with abstracts) and lectures, also by guest scientists, is attached. (RB)

  20. Results and discussion

    International Nuclear Information System (INIS)

    The author deals with the experimental study of sorption, desorption and vertical migration of radionuclides in Sr-85 and Cs-137 in selected soil samples from around of NPP Bohunice and NPP Mochovce and other localities of the Slovakia. The influence of different materials [concurrent ions (K+, Ca2+, NH4+, pH), organic matter (peat) and zeolite, humidity] on kinetic of sorption and desorption of strontium and cesium as well as distribution coefficient (KD) and transfer coefficients in followed samples of soils were followed. Obtained adsorption isotherm are presented and discussed. Using the Tessiere's sequential extraction analysis a gross variability in binding of radionuclides on soils was found. The obtained results were processed with the correlation analysis and the compartment model

  1. Areva - 2011 Annual results

    International Nuclear Information System (INIS)

    Areva's backlog established at 45.6 billion euros at the end of 2011, significantly increasing at the end of a year marked by the Fukushima accident, confirms the commercial dynamism of the group alongside its customers and reinforces the visibility on its future business level. In a difficult context, the slight decline in revenue in 2011 demonstrates the robustness of Areva's integrated model, resting mainly on recurring business generated in relation to Areva's customers' nuclear installed base, and benefiting from the development of Areva's renewable energies operations. Free operating cash flow before tax, although down over the whole year in 2011, improved in the second half, showing the first effects of Areva's stronger focus on cash generation and debt management. After the success of Areva's bond issue in September 2011, the Group's liquidity remains high at the end of 2011. The Areva teams are now dedicating all of their efforts to the deployment of the 'Action 2016' strategic action plan, which had already yielded its first positive results at the end of 2011, with an improvement in the cost structure of Areva's operations, an increase in order intake, and the launch of several disposals of minority interests. Summary of the 2011 financial results: - Backlog: euro 45.6 bn, +3.1% vs. 2010, i.e +6.7% over 3 months; - Revenue: euro 8.872 bn, i.e -2.6% vs. 2010; - Operating income: - euro 1.923 bn; - Net income attributable to equity owners of the parent: - euro 2.424 bn; - EBITDA: euro 1.068 bn ( euro 420 m excluding Siemens impact); - Free operating cash flow before tax: - euro 2.397 bn (- euro 1.366 bn excluding Siemens impacts), improvement over the second half; - Decrease in net debt of euro 124 m for the year; - Significant drop in general and administrative expenses, with a noticeable reduction between the first and the second half; - Launch of several disposals of minority interests

  2. Report on Results 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report discusses work being carried out in Norway to promote energy efficiency and the production of new renewable energy. An overall review of the quantifiable results of last year's activities at national level is available. It will serve to initiate an annual reporting tradition. The report represents a step towards an ongoing process for improved targeting and management of national efforts. During the course of the year 2000, NVE has evaluated and adjusted its activities and established a system involving indicators and reporting procedures. It is also important to take notice of the long-term work being undertaken to influence people's attitudes, even though this work is difficult to assess. NVE is investing in i.a. measures aimed at children and young people. Apart from directly influencing future energy users, this investment is also having an effect due to the children's encouragement of their parents to engage in more energy and environment-friendly behaviour. Published in 2000, the IEA report ''Trends in Norwegian Stationary Energy Use'' shows that total Norwegian energy consumption per GDP is not much higher than in other IEA countries, when adjusted for cold climate and industrial structure. However, Norwegians do stand out as intensive users of electricity. The IEA report shows a reduction of 10 TWh in energy usage when compared to the projected post 1990 figures. Energy efficiency activities have contributed towards this reduction. However, the potential for a more rational use of energy in Norway is still substantial and well documented. Based on experience most enterprises could save around 10% of energy used just by making changes to their operations, i.e. without major investments. Furthermore, the potential is growing because of massive technological developments in respect of energy usage, production and distribution. With this in mind, it is necessary to take full advantage of the extensive knowledge

  3. Experimental results: an update

    International Nuclear Information System (INIS)

    This article is a summary of experimental results from highest energy cosmic ray measurements, focusing on data and analyses that became available after 1999. The structure of the article is as follows. In Section 2 the currently available data of highest energy cosmic ray fluxes are compared. Systematic features in the energy spectrum are discussed and the question of compatibility of the data with the existence of a GZK (Greisin-Zatsepin-Kuzmin) cutoff is addressed. In Section 3 we summarize new results on studies of the arrival direction distribution and in Section 4 a compilation of recent composition measurements is presented. In Section 5 we give conclusions and an outlook, briefly describing some of the very promising detector projects planned or currently under construction. The 6 main conclusions we highlight are briefly: 1) Cosmic rays with energies exceeding 1020 eV do exist; 2) The arrival direction distribution of cosmic rays is, within the statistics of the measurements, isotropic even at the highest energies. There is only a small but statistically significant anisotropy at ∼ 1018 eV; 3) The mass composition of ultra high energy cosmic rays seems to become lighter with increasing energy; 4) There are no indications of a substantial fraction of ultra-high energy gamma-rays in the cosmic ray flux; 5) Experiments with larger collection area and new detection techniques are needed to significantly increase the statistics of the observed events. The combination of different detection techniques in single experiments will be the key to understanding systematic effects due to detection methods and our limited theoretical understanding of extensive air showers at ultra high energy. Uniform coverage of the northern and southern sky is mandatory for progressing in determining the arrival direction distribution and possible differences of the fluxes observed at the northern and southern hemisphere; 6) Parallel to the experimental efforts of collecting many

  4. Results from PLUTO

    International Nuclear Information System (INIS)

    Recent results obtained with the PLUTO detector at the e+e- storage ring PETRA are reviewed. The validity of QED has been successfully tested in five independent reactions at spacelike momentum transfers up to -850 GeV2 and timelike momentum transfers up to 1000 GeV2. We are performing a detailed study of hadron production through 2 γ interactions. In particular we have measured the total hadronic γγ cross section and have determined the radiative width of the f0 meson to be GAMMA (f → γγ) = (2.3 +- 0.5 +- 0.35) keV. The first indication for the production of large P(t) jets in 2γ interactions is presented. We find no evidence for a tt threshold in the rate of inclusive muons. Finally we give a lower limit (95% c.1.) of 13 GeV on the mass of a spin 0 electron expected from supersymmetry

  5. Lower gastrointestinal endoscopies results

    Directory of Open Access Journals (Sweden)

    Ahmet Bozdağ

    2014-12-01

    Full Text Available Objectives: Endoscopic examinations have great potential in early diagnosis of colorectal adenomas and carcinomas with reducing to colorectal cancer incidence and mortality. We aimed to evaluate for diagnostic purposeful lower gastrointestinal endoscopic procedures in the second step state hospital retrospectively Methods: Between June 2010 and June 2013, we evaluated 278 patients with rectal bleeding, constipation and abdominal pain detected by lower gastrointestinal endoscopic procedures retrospectively. Results: The mean age of the patients was 54.8 ± 16.8 (15-90 year, respectively. 172 (61.9% of the patients were male and 106 (38.1% of the patients were female. 116 (41.7% of the patients was performed rectosigmoidoscopy and 162 (58.3% of the patients was performed colonoscopy. 51(18.3% of our patients were normal. 10 (3.6% of patients had colorectal cancer, 11(3.9% of patients had inflammatory bowel disease, 8 (2.9% of patients had parasitosis, 31(11.1% of patients had colorectal polyps, 12 (4.3% , in patients had diverticular disease, 2 (0.7% patients had rectal ulcer, 25 (9% patients had anal fissure and 159 (57.2% of the patients had hemorrhoidal disease. Conclusion: Lower gastrointestinal endoscopy is a method been the gold standard with a low complication rate and that can be easily applied in the evaluation to pathology of colorectal and anal canal. J Clin Exp Invest 2014; 5 (4: 580-582

  6. Results from LHCf Experiment

    Directory of Open Access Journals (Sweden)

    Tricomi Alessia

    2012-06-01

    Full Text Available The LHCf experiment has taken data in 2009 and 2010 p-p collisions at LHC at √s = 0.9 TeV and √s = 7 TeV. The measurement of the forward neutral particle spectra produced in proton-proton collisions at LHC up to an energy of 14 TeV in the center of mass system are of fundamental importance to calibrate the Monte Carlo models widely used in the high energy cosmic ray (HECR field, up to an equivalent laboratory energy of the order of 1017 eV. In this paper the first results on the inclusive photon spectrum measured by LHCf is reported. Comparison of this spectrum with the model expectations show significant discrepancies, mainly in the high energy region. In addition, perspectives for future analyses as well as the program for the next data taking period, in particular the possibility to take data in p-Pb collisions, will be discussed.

  7. Results from hadron colliders

    International Nuclear Information System (INIS)

    The present status of hadron collider physics is reviewed. The total cross section for bar p + p has been measured at 1.8 TeV: σtot = 72.1 ± 3.3 mb. New data confirm the UA2 observation of W/Z → bar qq. Precision measurements of MW by UA2 and CDF give an average value MW = 80.13 ± 0.30 GeV/c2. When combined with measurements of MZ from LEP and SLC this number gives sin2θW = 0.227 ± 0.006, or mtop = 130-60+40 GeV/c2 from the EWK radiative correction term Δr. Evidence for hadron colliders as practical sources of b quarks has been strengthened, while searches for t quarks have pushed the mass above MW: mtop > 89 GeV/c2 95% cl (CDF Preliminary). Searches beyond the standard model based on the missing ET signature have not yet produced any positive results. Future prospects for the discovery of the top quark in the range mtop 2 look promising. 80 refs., 35 figs., 7 tabs

  8. SAA drift: Experimental results

    Science.gov (United States)

    Grigoryan, O. R.; Romashova, V. V.; Petrov, A. N.

    According to the paleomagnetic analysis there are variations of Earth’s magnetic field connected with magnetic moment changing. These variations affect on the South Atlantic Anomaly (SAA) location. Indeed different observations approved the existence of the SAA westward drift rate (0.1 1.0 deg/year) and northward drift rate (approximately 0.1 deg/year). In this work, we present the analysis of experimental results obtained in Scobeltsyn Institute of Nuclear Physics, Moscow State University (SINP MSU) onboard different Earth’s artificial satellites (1972 2003). The fluxes of protons with energy >50 MeV, gamma quanta with energy >500 keV and neutrons with energy 0.1 1.0 MeV in the SAA region have been analyzed. The mentioned above experimental data were obtained onboard the orbital stations Salut-6 (1979), MIR (1991, 1998) and ISS (2003) by the similar experimental equipment. The comparison of the data obtained during these two decades of investigations confirms the fact that the SAA drifts westward. Moreover the analysis of fluxes of electrons with energy about hundreds keV (Cosmos-484 (1972) and Active (Interkosmos-24, 1991) satellites) verified not only the SAA westward drift but northward drift also.

  9. Results from SNO

    Energy Technology Data Exchange (ETDEWEB)

    Chan, Yuen-dat

    2001-10-01

    The Sudbury Neutrino Observatory (SNO) is an underground heavy water Cherenkov detector for studying solar neutrinos. SNO is capable of performing both flavor sensitive and flavor blind measurements of the solar neutrino flux. The first charged current (CC) measurement is found to be: {psi}{sub SNO}{sup CC}({nu}{sub e}) = 1.75 {+-} 0.07(stat.){sub -0.11}{sup +0.12}(sys.) {+-} 0.05 (theor.) x 10{sup 6} cm{sup -2}s{sup -1} and the elastic scattering fluxes (ES) is: {psi}{sub SNO}{sup ES}({nu}{sub x}) = 2.39 {+-} 0.34(stat.){sub -0.14}{sup +0.16} (sys.) x 10{sup 6} cm{sup -2}s{sup -1}. The {psi}{sub SNO}{sup CC}({nu}{sub e}) result, when combined with the high statistics elastic scattering (ES) measurement from Super-Kamiokande, provide a strong evidence for solar neutrino flavor transformation (3.3{sigma}). The deduced total solar neutrino flux is in good agreement with standard solar model predictions. No significant distortion in the energy spectrum is observed.

  10. ALOS-2 initial results

    Science.gov (United States)

    Kankaku, Yukihiro; Suzuki, Shinichi; Shimada, Masanobu

    2015-10-01

    The Advanced Land Observing Satellite-2 (ALOS-2) was launched from Tanegashima Space Center by H-IIA rocket successfully on 24th May 2014. ALOS-2 carries the Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) as the state-of-the-art L-band SAR system which succeeds to PALSAR onboard ALOS. PALSAR-2 uses almost whole bandwidth allocated for L-band active sensor of Earth Exploration Satellites Service specified by the Radio Regulation in order to realize the high resolution observation, and also, it transmits more than 6 kW power for lower Noise Equivalent Sigma Zero using 180 TRMs driven by Gallium Nitride (GaN) amplifier which is the first use in space. Furthermore, because ALOS-2 carries the SAR system only, PALSAR-2 antenna can be mounted under the satellite body. It enables to observe right-/left-looking observation by satellite maneuvering. And the high accuracy orbit control to maintain the satellite within 500 m radius tube against the reference orbit enables high coherence for the InSAR processing. Using these new technologies, ALOS-2 has been operating to fulfill the mission requirements such as disaster monitoring and so on. This document introduces the initial result of ALOS-2 from the first year operation.

  11. ESR teleradiology survey: results.

    Science.gov (United States)

    2016-08-01

    With recent developments of teleradiology technology and services, it has become necessary to better evaluate its extent and use among different countries in Europe. With this goal in mind, the ESR launched two specific surveys intended to gather the current state of adoption and implementation of teleradiology in clinical practice. A special focus on differentiating between insourcing teleradiology services among partners of the same organisation and outsourcing to external services was an essential part of the design of these surveys. The first survey was addressed to 44 national societies of different countries in Europe, while the second survey was intended for all practicing radiologist ESR members. While the results of these surveys reported here may provide a wealth of information to better understand the trends in adoption of teleradiology in Europe, they only represent a snapshot at a certain point in time. The rapid development of telecommunication tools as well as a fundamental change in practice and healthcare economics will certainly influence these observations in the upcoming years. These data, however, will provide objective and relevant parameters for supporting the efforts of experts and policy makers in promoting appropriate criteria and guidelines for adequate use of teleradiology in clinical practice. Main Messages • Understand concepts and challenges of teleradiology • Provide insight into current trends and solutions for teleradiology • Compare differences in teleradiolgy strategies between countries in Europe • Establish a reference on statistical data of usage of teleradiology in Europe. PMID:27188379

  12. Simpler images, better results

    Science.gov (United States)

    Chance, Britton

    1999-03-01

    The very rapid development of optical technology has followed a pattern similar to that of nuclear magnetic resonance: first, spectroscopy and then imaging. The accomplishments in spectroscopy have been significant--among them, early detection of hematomas and quantitative oximetry (assuming that time and frequency domain instruments are used). Imaging has progressed somewhat later. The first images were obtained in Japan and USA a few years ago, particularly of parietal stimulation of the human brain. Since then, rapid applications to breast and limb, together with higher resolution of the brain now make NIR imaging of functional activation and tumor detection readily available, reliable and affordable devices. The lecture has to do with the applications of imaging to these three areas, particularly to prefrontal imaging of cognitive function, of breast tumor detection, and of localized muscle activation in exercise. The imaging resolution achievable in functional activation appears to be FWHM of 4 mm. The time required for an image is a few seconds or even much less. Breast image detection at 50 microsecond(s) ec/pixel results in images obtainable in a few seconds or shorter times (bandwidths of the kHz are available). Finally, imaging of the body organs is under study in this laboratory, particularly in the in utero fetus. It appears that the photon migration theory now leads to the development of a wide number of images for human subject tissue spectroscopy and imaging.

  13. NAS Parallel Benchmarks Results

    Science.gov (United States)

    Subhash, Saini; Bailey, David H.; Lasinski, T. A. (Technical Monitor)

    1995-01-01

    The NAS Parallel Benchmarks (NPB) were developed in 1991 at NASA Ames Research Center to study the performance of parallel supercomputers. The eight benchmark problems are specified in a pencil and paper fashion i.e. the complete details of the problem to be solved are given in a technical document, and except for a few restrictions, benchmarkers are free to select the language constructs and implementation techniques best suited for a particular system. In this paper, we present new NPB performance results for the following systems: (a) Parallel-Vector Processors: Cray C90, Cray T'90 and Fujitsu VPP500; (b) Highly Parallel Processors: Cray T3D, IBM SP2 and IBM SP-TN2 (Thin Nodes 2); (c) Symmetric Multiprocessing Processors: Convex Exemplar SPP1000, Cray J90, DEC Alpha Server 8400 5/300, and SGI Power Challenge XL. We also present sustained performance per dollar for Class B LU, SP and BT benchmarks. We also mention NAS future plans of NPB.

  14. Climax granite test results

    International Nuclear Information System (INIS)

    The Lawrence Livermore Laboratory (LLL), as part of the Nevada Nuclear Waste Storage Investigations (NNWSI) program, is carrying out in situ rock mechanics testing in the Climax granitic stock at the Nevada Test Site (NTS). This summary addresses only those field data taken to date that address thermomechanical modeling for a hard-rock repository. The results to be discussed include thermal measurements in a heater test that was conducted from October 1977 through July 1978, and stress and displacement measurements made during and after excavation of the canister storage drift for the Spent Fuel Test (SFT) in the Climax granite. Associated laboratory and field measurements are summarized. The rock temperature for a given applied heat load at a point in time and space can be adequately modeled with simple analytic calculations involving superposition and integration of numerous point source solutions. The input, for locations beyond about a meter from the source, can be a constant thermal conductivity and diffusivity. The value of thermal conductivity required to match the field data is as much as 25% different from laboratory-measured values. Therefore, unless we come to understand the mechanisms for this difference, a simple in situ test will be required to obtain a value for final repository design. Some sensitivity calculations have shown that the temperature field is about ten times more sensitive to conductivity than to diffusivity under the test conditions.The orthogonal array was designed to detect anisotropy. After considering all error sources, anisotropic efforts in the thermal field were less than 5 to 10%

  15. Areva: 2014 annual results

    International Nuclear Information System (INIS)

    The scale of the net loss for 2014 illustrates the twofold challenge confronting AREVA: continuing stagnation of the nuclear operations, lack of competitiveness and difficulties in managing the risks inherent in large projects. The group understands how serious this situation is. A comprehensive strategic review of operations was undertaken beginning in November 2014 and is being carried out without compromise. As a result, AREVA is now able to announce a solid transformation plan that sets a challenging but economically realistic course for its teams. First, AREVA will refocus on its core business: mastery of key nuclear processes essential to operators around the globe. This strategic redeployment will lead to the revision of certain goals, whether in the management of new reactor projects or in renewable energies. AREVA's objective is to achieve excellence as a high value-added supplier of products and services. Secondly, AREVA, whose resources had been marshaled to support a spurt of growth in nuclear power, must now adapt to new market realities and become competitive once again. The group's most urgent task is recovery and securing its future by immediately launching a far-reaching competitiveness plan founded on organizational simplification, quality of operations, and a completely revamped approach to managing risk in large projects. Last but not least, AREVA must ensure sustainable financing for its activities. A financing plan will be clarified before publication of the half-year financial statements. This document presents the key financial data of the group, its strategic road-map and its operating and financing plans

  16. Do crocodilians get the flu? Looking for influenza A in captive crocodilians.

    Science.gov (United States)

    Davis, Lisa Marie; Spackman, Erica

    2008-12-01

    It is well established that several wild aquatic bird species serve as reservoirs for the influenza A virus. It has also been shown that the influenza A virus can be transmitted to mammalian species such as tigers and domestic cats and dogs through ingestion of infected birds. Another group of animals that should also be considered as potential hosts for the influenza A virus are the crocodilians. Many crocodilian species share aquatic environments with wild birds that are known to harbor influenza viruses. In addition, many large crocodilians utilize birds as a significant food source. Given these factors in addition to the close taxonomic proximity of aves to the crocodilians, it is feasible to ask whether crocodilian species may also harbor the influenza A virus. Here we analyzed 37 captive crocodilians from two locations in Florida (plus 5 wild bird fecal-samples from their habitat) to detect the presence of influenza A virus. Several sample types were examined. Real-time RT-PCR tests targeting the influenza A matrix gene were positive for four individual crocodilians--Alligator sinensis, Paleosuchus trigonatus, Caiman latirostris and Crocodylus niloticus. Of the seven serum samples tested with the avian influenza virus agar gel immunodiffusion assay, three showed a nonspecific reaction to the avian influenza virus antigen-A. sinensis, P. trigonatus and C. niloticus (C. latirostris was not tested). Viable virus could not be recovered from RT-PCR-positive samples, although this is consistent with previous attempts at viral isolation in embryonated chicken eggs with crocodilian viruses. PMID:18381628

  17. Overview of MAST results

    Science.gov (United States)

    Chapman, I. T.; Adamek, J.; Akers, R. J.; Allan, S.; Appel, L.; Asunta, O.; Barnes, M.; Ben Ayed, N.; Bigelow, T.; Boeglin, W.; Bradley, J.; Brünner, J.; Cahyna, P.; Carr, M.; Caughman, J.; Cecconello, M.; Challis, C.; Chapman, S.; Chorley, J.; Colyer, G.; Conway, N.; Cooper, W. A.; Cox, M.; Crocker, N.; Crowley, B.; Cunningham, G.; Danilov, A.; Darrow, D.; Dendy, R.; Diallo, A.; Dickinson, D.; Diem, S.; Dorland, W.; Dudson, B.; Dunai, D.; Easy, L.; Elmore, S.; Field, A.; Fishpool, G.; Fox, M.; Fredrickson, E.; Freethy, S.; Garzotti, L.; Ghim, Y. C.; Gibson, K.; Graves, J.; Gurl, C.; Guttenfelder, W.; Ham, C.; Harrison, J.; Harting, D.; Havlickova, E.; Hawke, J.; Hawkes, N.; Hender, T.; Henderson, S.; Highcock, E.; Hillesheim, J.; Hnat, B.; Holgate, J.; Horacek, J.; Howard, J.; Huang, B.; Imada, K.; Jones, O.; Kaye, S.; Keeling, D.; Kirk, A.; Klimek, I.; Kocan, M.; Leggate, H.; Lilley, M.; Lipschultz, B.; Lisgo, S.; Liu, Y. Q.; Lloyd, B.; Lomanowski, B.; Lupelli, I.; Maddison, G.; Mailloux, J.; Martin, R.; McArdle, G.; McClements, K.; McMillan, B.; Meakins, A.; Meyer, H.; Michael, C.; Militello, F.; Milnes, J.; Morris, A. W.; Motojima, G.; Muir, D.; Nardon, E.; Naulin, V.; Naylor, G.; Nielsen, A.; O'Brien, M.; O'Gorman, T.; Ono, Y.; Oliver, H.; Pamela, S.; Pangione, L.; Parra, F.; Patel, A.; Peebles, W.; Peng, M.; Perez, R.; Pinches, S.; Piron, L.; Podesta, M.; Price, M.; Reinke, M.; Ren, Y.; Roach, C.; Robinson, J.; Romanelli, M.; Rozhansky, V.; Saarelma, S.; Sangaroon, S.; Saveliev, A.; Scannell, R.; Schekochihin, A.; Sharapov, S.; Sharples, R.; Shevchenko, V.; Silburn, S.; Simpson, J.; Storrs, J.; Takase, Y.; Tanabe, H.; Tanaka, H.; Taylor, D.; Taylor, G.; Thomas, D.; Thomas-Davies, N.; Thornton, A.; Turnyanskiy, M.; Valovic, M.; Vann, R.; Walkden, N.; Wilson, H.; Wyk, L. V.; Yamada, T.; Zoletnik, S.; MAST; MAST Upgrade Teams

    2015-10-01

    The Mega Ampère Spherical Tokamak (MAST) programme is strongly focused on addressing key physics issues in preparation for operation of ITER as well as providing solutions for DEMO design choices. In this regard, MAST has provided key results in understanding and optimizing H-mode confinement, operating with smaller edge localized modes (ELMs), predicting and handling plasma exhaust and tailoring auxiliary current drive. In all cases, the high-resolution diagnostic capability on MAST is complemented by sophisticated numerical modelling to facilitate a deeper understanding. Mitigation of ELMs with resonant magnetic perturbations (RMPs) with toroidal mode number nRMP = 2, 3, 4, 6 has been demonstrated: at high and low collisionality; for the first ELM following the transition to high confinement operation; during the current ramp-up; and with rotating nRMP = 3 RMPs. nRMP = 4, 6 fields cause less rotation braking whilst the power to access H-mode is less with nRMP = 4 than nRMP = 3, 6. Refuelling with gas or pellets gives plasmas with mitigated ELMs and reduced peak heat flux at the same time as achieving good confinement. A synergy exists between pellet fuelling and RMPs, since mitigated ELMs remove fewer particles. Inter-ELM instabilities observed with Doppler backscattering are consistent with gyrokinetic simulations of micro-tearing modes in the pedestal. Meanwhile, ELM precursors have been strikingly observed with beam emission spectroscopy (BES) measurements. A scan in beta at the L-H transition shows that pedestal height scales strongly with core pressure. Gyro-Bohm normalized turbulent ion heat flux (as estimated from the BES data) is observed to decrease with increasing tilt of the turbulent eddies. Fast ion redistribution by energetic particle modes depends on density, and access to a quiescent domain with ‘classical’ fast ion transport is found above a critical density. Highly efficient electron Bernstein wave current drive (1 A W-1) has been achieved

  18. AREVA annual results 2009

    International Nuclear Information System (INIS)

    AREVA expanded its backlog and increased its revenues compared with 2008, on strong installed base business and dynamic major projects, fostering growth in operating income of 240 million euros. As announced previously, Areva is implementing a financing plan suited to its objectives of profitable growth. The plan was implemented successfully in 2009, including the conclusion of an agreement, under very satisfactory terms, to sell its Transmission and Distribution business for 4 billion euros, asset sales for more than 1.5 billion euros, and successful bond issues of 3 billion euros. The plan will continue in 2010 with a capital increase, the completion of asset disposals and cost reduction and continued operational performance improvement programs. Areva bolstered its Renewable Energies business segment by supplementing its offshore wind power and biomass businesses with the acquisition of Ausra, a California-based leader in concentrated solar power technology. Despite the sale of T and D, Areva is maintaining its financial performance outlook for 2012: 12% average annual revenue growth to 12 billion euros in 2012, double digit operating margin and substantially positive free operating cash flow. Annual results 2009: - For the group as a whole, including Transmission and Distribution: Backlog: euros 49.4 bn (+2.5%), Revenues: euros 14 bn (+6.4%), Operating income: euros 501 m (+20.1%); - Nuclear and Renewable Energies perimeter: Backlog: euros 43.3 bn (+1.8%), Strong revenue growth: +5.4% to euros 8.5 bn, Operating income before provision for the Finnish project in the first half of 2009: euros 647 m, Operating income: euros 97 m, for a euros 240 m increase from 2008; - Net income attributable to equity holders of the parent: euros 552 m, i.e. euros 15.59 per share; - Net debt: euros 6,193 m; - Pro-forma net debt, including net cash to be received from the sale of T and D in 2010: euros 3,022 m; - Dividend of euros 7.06 per share to be proposed during the Annual

  19. Montmorillonite stability - experimental results

    International Nuclear Information System (INIS)

    Document available in extended abstract form only. Several repository concepts for spent nuclear fuel comprise a bentonite buffer which encloses the fuel containers. The function of this bentonite buffer is critically dependent on the properties of the swelling mineral in the bentonite, which typically is montmorillonite in commercial high quality bentonites. The physical and chemical properties of the montmorillonite in bentonites have consequently been studied in various types of analyses in several countries, and the results have been the basis for the design of the bentonite buffer with respect to size, degree of compaction etc (SKB TR-10-47). Significant changes in the montmorillonite structure with time may change the properties of the bentonite buffer and jeopardize the isolating function. In nature, illite is the most common alteration product from montmorillonite, and a 50% alteration reduces, for instance, the swelling pressure by one order of magnitude. Fortunately, the process is very slow at typical repository temperatures, and also in the perspective of repository life-time no significant alteration is expected according to the available kinetic models. The models are, however, based on laboratory batch experiments performed at temperatures, which by necessity are much higher than what is planned for in a repository. Alternatively, the models are based on natural montmorillonite-to-illite alteration in e.g. deep sediments. In both cases there are divergences from repository conditions which limit the arguments for the bentonite buffer stability. The mechanism by which the montmorillonite-to-illite reaction takes place is not fully understood, but the overall process may be represented by the following schematic reaction: Na+ montmorillonite + K+ + Al3+ → illite + SiO2 + Na+. Aluminum may be supplied from the bentonite itself, but potassium has to be transported to the buffer from an external source in order to give a significant alteration in a

  20. Overview of MAST results

    International Nuclear Information System (INIS)

    structures following field lines in the edge. These filaments rotate toroidally with the edge plasma and, away from the X-points, accelerate radially outwards from the edge up to 20cm. Studies of disruptions on MAST demonstrate a complex evolution of core energy loss and resultant divertor power loads, including phases where the target heat flux width is broadened by a factor 8. Observations of energetic particle modes driven by super-Alfvenic beam ions provide support for a model for the non-linear evolution of toroidal Alfven eigenmodes (AE) forming BGK waves. AE activity reduces to low levels with increasing β. Plasma start-up without a central solenoid and in a manner compatible with future large ST devices has been demonstrated using breakdown at a quadrupole magnetic null. Closed flux surface plasmas with peak plasma currents up to 370 kA have been generated and sustained for 0.3s. New error field correction coils have extended the operational space for low density plasmas and enabled scaling studies of error field induced locked mode formation in the ST. (author)

  1. Gross and Microscopic Observations on the Lingual Structure of the West Indian Manatee (Trichechus manatus latirostris)

    OpenAIRE

    Levin, Milton Jay

    1999-01-01

    The West Indian manatee tongue was examined macroscopically, light microscopically, and electron microscopically (scanning and transmission). The tongue was slender, muscular, and firmly fixed in the oral cavity. Only the cranial tip was free and mobile. Numerous filiform papillae were distributed over the dorsal surface of the rostral lingual region. Caudal to the filiform papillae, multiple raised, round papillae were distributed over the majority of the dorsum. Fungiform papillae we...

  2. THE VOCALIZATION MECHANISM OF THE FLORIDA MANATEE (TRICHECHUS MANATUS LATIROSTRIS)

    OpenAIRE

    Charles J. Grossman; Richard E. Hamilton; Martine De Wit; Jeff Johnson; Robert Faul; Steven Herbert; Dennis Tierney; Max Buot; Michelle L. Latham; Gregory Boivin; Gregory P. Boivin

    2014-01-01

    The mechanism by which Florida manatees produce vocalizations is unknown. Anatomically, the laryngeal region in manatees lacks clearly defined vocal folds. Initially we developed a method to visualize the entire manatee upper respiratory system. We then forced air through fresh necropsied manatee larynxes and generated artificial vocalizations which closely duplicated the normal vocalizations produced by live manatees, both in fundamental frequency and structure of harmonics. Here we report t...

  3. Corneal vascularization in the Florida manatee (Trichechus manatus latirostris) and three-dimensional reconstruction of vessels.

    Science.gov (United States)

    Harper, Jennifer Y; Samuelson, Don A; Reep, Roger L

    2005-01-01

    The cornea of the Florida manatee is unique and unusual in its anatomy in that blood vessels have been found throughout. In all other animal species, this is considered a pathological condition impeding vision, and is usually caused by injury or trauma. The purpose of this study was to more clearly describe corneal vascularization by examining the architecture through three-dimensional reconstruction in order to find possible patterns in size, distribution, and location of blood vessels relative to gender, age, location, and season. Twenty-six eyes from 22 individuals were prepared for histologic examination and subsequent three-dimensional reconstruction. Every specimen examined had blood vessels in the cornea, comprising an average of 0.3% of total surface density (volume) of the cornea. No differences were found between individuals based on gender, age, and season. Environmental influences were not a significant factor either, which was not originally anticipated. The presence of vessels at the level of the anterior epithelium was surprising and it appeared that the vascularization was directed more anteriorly than was originally thought. The presence of blood vessels in a prenatal eye was also found. In all the eyes examined, no signs of injury or trauma could be observed. The presence of blood vessels appears to minimally impair vision based on their low density, size, and location. The association of vessels with the anterior epithelium and development of vessels within the fetus point to an evolutionary adaptation possibly due to the manatee's unique ability to move between water bodies. PMID:15762922

  4. Detection of hydrodynamic stimuli by the Florida manatee (Trichechus manatus latirostris).

    Science.gov (United States)

    Gaspard, Joseph C; Bauer, Gordon B; Reep, Roger L; Dziuk, Kimberly; Read, Latoshia; Mann, David A

    2013-06-01

    Florida manatees inhabit the coastal and inland waters of the peninsular state. They have little difficulty navigating the turbid waterways, which often contain obstacles that they must circumnavigate. Anatomical and behavioral research suggests that the vibrissae and associated follicle-sinus complexes that manatees possess over their entire body form a sensory array system for detecting hydrodynamic stimuli analogous to the lateral line system of fish. This is consistent with data highlighting that manatees are tactile specialists, evidenced by their specialized facial morphology and use of their vibrissae during feeding and active investigation/manipulation of objects. Two Florida manatees were tested in a go/no-go procedure using a staircase method to assess their ability to detect low-frequency water movement. Hydrodynamic vibrations were created by a sinusoidally oscillating sphere that generated a dipole field at frequencies from 5 to 150 Hz, which are below the apparent functional hearing limit of the manatee. The manatees detected particle displacement of less than 1 μm for frequencies of 15-150 Hz and of less than a nanometer at 150 Hz. Restricting the facial vibrissae with various size mesh openings indicated that the specialized sensory hairs played an important role in the manatee's exquisite tactile sensitivity. PMID:23660811

  5. CARACTERISTICAS CITOQUIMICAS MORFOLOGICAS Y ULTRAESTRUCTURALES DE EOSINOFILOS DE Caiman crocodilus yacare (Daudin, 1802 (Reptilia, Crocodilia MORPHOLOGICAL AND ELETRONIC CYTOCHEMISTRY OBSERVATIONS IN EOSINOPHIL IN Caiman crocodilus yacare (Daudin, 1802 (Reptilia, Crocodilia

    Directory of Open Access Journals (Sweden)

    Luiz Waldemar Oliveira

    1998-01-01

    Full Text Available RESUMEN: Muestras de sangre periférica de reptiles, jóvenes y sanos, fueron recolectadas del seno venoso cervical, en tubos que contenían EDTA 10%. Inmediatamente los frotis fueron sometidos a los siguientes procedimientos: a Tinción con solución de Rosenfeld para el análisis morfológico. bDetección de la fosfatasa alcalina con naftol AS-MX fosfato y mieloperoxidasa (pH 7,0 y pH10,0 con o-toluidina H(20(2. Una parte de la sangre con EDTA fue centrifugada por 15' a 2.000rpm y el coágulo conteniendo los leucocitos, fue dividido en dos fragmentos y tratados con: a glutaraldehído a 2% (1h a 4C para la reacción de la fosfatasa alcalina; bglutaraldehído a 1,25% + paraformaldehído al 1% (1h 4C, para la reacción de la mieloperoxidasa. Los eosinófilos revelaron núcleo excéntrico redondeado, oval o lobulado con nucléolo prominente. El citoplasma de los eosinófilos es ocupado por gránulos eosinofílicos evidentes (grandes, aproximadamente esféricos, compactos, uniformes en tamaño. No fue observada actividad de la fosfatasa alcalina en eosinófilos. Una reacción positiva débil en pH 7,0 y fuerte en pH 10,0, para mieloperoxidasa fue visualizada como un precipitado marrón, en los eosinófilos. El microscopio electrónico reveló actividad de la mieloperoxidasa solamente en algunos gránulos en pH 7,0 y en la mayoría de los gránulos en pH 10,0. Proteínas básicas produjeron reacción visible, principalmente en la periferia de todos los gránulos citoplasmáticos de los eosinófilos.SUMMARY: Samples of peripheral blood from healthy young reptiles were collected from the cervical venous sinus in tubes containing EDTA 10%. Freshly prepared smears were used for the following purpuses: a Staining in Rosenfeld solution for the morphological analyses. b Detection of alkaline phosphatase with naphthol ASMX-phosphate and myeloperoxidase (pH 7,0 and pH10,0 with o-toluidine H(20(2. The same blood samples with EDTA were centrifuged for 15' at 2,000rpm and the buffy coat containing leukocytes was devided in two fragments and one of them treated with glutaraldehyde (1h at 4C and used for alkaline phosphatase reaction and the other 1,25% glutaraldehyde + 1% paraformaldehyde (1h 4C and used for myeloperoxidase reaction. The eosinophils revealed round, oval or lobed eccentric nuclei with prominent nucleoli. The cytoplasm of eosinophils is dominated by striking eosinophilic granules (large, nearly spherical, closely packed, uniform in size. No alkaline phosphatase activity was observed in the eosinophils. A positive reaction for myeloperoxidase (faint at ph 7,0 an strong at pH 10,0 was visualized as a brown precipitate in the eosinophils. EM observation revealed myeloperoxidase activity only in a few granules (at pH 7,0 and in a majority of the granules (at pH 10,0. Basic protein reaction product is visible essentially at the periphery of all the citoplasmic granules in the eosinophils.

  6. Acompanhamento das alterações post-mortem (Glicólise no músculo do jacaré do pantanal (Caiman crocodilus yacare Post-mortem alterations (Glycolysis of pantanal alligator's (Caiman crocodilus yacare muscle

    Directory of Open Access Journals (Sweden)

    Sebastião Roberto Taboga

    2003-04-01

    Full Text Available Realizaram-se avaliações químicas, histológicas e medidas de pH ao longo do tempo da degradação do glicogênio no músculo longissumus dorsi do jacaré. A metabolização do glicogênio muscular durou em torno de 50 horas, situando-se o pH muscular inicial entre 6,6 e 6,7 e estabilizando-se, depois de 36 a 48 horas, em torno de 5,5-5,6. Oitenta a 85% do glicogênio inicial foi metabolizado nas primeiras 20-25 horas pós-abate. Histologicamente o teste do PAS revelou, ao longo do tempo de armazenamento refrigerado, um decréscimo dos grânulos de glicogênio.This paper presents a study of glycogen degradation in longissimus dorsi muscle of pantanal alligator. Glycogen concentration and muscle pH measurements were assessed. Glycolysis took about 50 hours to complete. Initial muscle pH value were in the limits of 6.6 and 6.7 and after 36 hours they dropped to 5.5-5.6. On the first 20-25 hours postmortem 80-85% of inicial glycogen was metabolized. Through histologycal PAS test it was observed during cold storage a decrease on the number of glycogen granules. On the first 20-25 hours postmortem 80-85% of inicial glycogen was metabolized.

  7. CARACTERISTICAS CITOQUIMICAS MORFOLOGICAS Y ULTRAESTRUCTURALES DE EOSINOFILOS DE Caiman crocodilus yacare (Daudin, 1802) (Reptilia, Crocodilia) MORPHOLOGICAL AND ELETRONIC CYTOCHEMISTRY OBSERVATIONS IN EOSINOPHIL IN Caiman crocodilus yacare (Daudin, 1802) (Reptilia, Crocodilia)

    OpenAIRE

    Luiz Waldemar Oliveira; Weber Leal de Moura; Eliana Reiko Matushima; Mizue Imoto Egami

    1998-01-01

    RESUMEN: Muestras de sangre periférica de reptiles, jóvenes y sanos, fueron recolectadas del seno venoso cervical, en tubos que contenían EDTA 10%. Inmediatamente los frotis fueron sometidos a los siguientes procedimientos: a) Tinción con solución de Rosenfeld para el análisis morfológico. b)Detección de la fosfatasa alcalina con naftol AS-MX fosfato y mieloperoxidasa (pH 7,0 y pH10,0) con o-toluidina H(2)0(2). Una parte de la sangre con EDTA fue centrifugada por 15' a 2.000rpm y el coágulo c...

  8. Intussusception in a Florida manatee.

    Science.gov (United States)

    Forrester, D J; White, F H; Woodard, J C; Thompson, N P

    1975-10-01

    An intussusception resulting from an embedded fishhook and a mass of nylon cord, monofilament line, and wire was determined to be the cause of death in a Florida manatee (Trichechus manatus latirostris). Pathologic findings are given along with information on bacteria (Edwardsiella tarda), pesticide residues (DDE, PCB's and dieldrin), and parasites (Chiorchis fabaceus). PMID:1195505

  9. Aesthetic rhinoplasty: Avoiding unfavourable results

    Directory of Open Access Journals (Sweden)

    Kulwant S Bhangoo

    2013-01-01

    Full Text Available Rhinoplasty is one of the most challenging surgical procedures in plastic surgery. It is not surprising that a significant number of patients end up with unfavourable outcomes. Many of these unfavourable outcomes could be the result of poor judgment and wrong decision making. Most frequently, the unfavourable outcome is the result of errors in surgical technique. In this paper, unfavourable outcomes resulting from errors in surgical technique are discussed under the heading of each operative step. Poor placement of intra-nasal incision can result in internal valve obstruction. Bad columellar scars can result from errors during open rhinoplasty. Unfavourable results associated with skeletonisation are mentioned. Tip plasty, being the most difficult part of rhinoplasty, can result in lack of tip projection, asymmetry and deformities associated with placement of tip grafts. Over-resection of the lower lateral cartilages during tip plasty can also result in pinched nose, alar collapse causing external valve obstruction and other alar rim deformities. Humpectomy can result in open roof deformity, inverted V deformity and over-resection resulting in saddle nose. The so-called poly beak deformity is also a preventable unfavourable outcome when dealing with a large dorsal hump. Complications resulting from osteotomies include narrowing of nasal airway, open roof deformity, inverted V deformity and asymmetry of the bony wall resulting from incomplete or green stick fractures. Judicious use of grafts can be very rewarding. By the same token, grafts also carry with them the risk of complications. Allografts can result in recurrent infection, atrophy of the overlying skin and extrusion resulting in crippling deformities. Autografts are recommended by the author. Unfavourable results from autografts include displacement of graft, visibility of the graft edges, asymmetry, warping, and resorption.

  10. Solar neutrino results from SAGE

    International Nuclear Information System (INIS)

    The results of ten years of solar neutrino observation by the Russian-American gallium solar neutrino experiment (SAGE) are reported. The overall result of 70 runs during the measurement period from January 1990 to October 1999 is 75.4-6.8+7.0 (stat.) -3.0+3.5 (syst) SNU. This represents only slightly more than half of the predicted standard solar model rate of 129 SNU. The individual results on each run, and the results of combined analysis of all runs during each year, as well as the results of combined analysis of all runs during monthly and bimonthly periods are presented

  11. Solar neutrino results from SAGE

    International Nuclear Information System (INIS)

    We report the results of ten years of solar neutrino observation by the Russian-American Gallium solar neutrino Experiment (SAGE). The overall result of 70 runs during the measurement period January 1990 to October 1999 is 75.4 + 7.0/-6.8 (stat.) +3.5/-3.0 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 129 SNU. The individual results of each run, and the results of combined analysis of all runs during each year, as well as the results of combined analysis of all runs during monthly and bimonthly periods are presented

  12. CCTF CORE I test results

    International Nuclear Information System (INIS)

    This report presents the results of the following CCTF CORE I tests conducted in FY. 1980. (1) Multi-dimensional effect test, (2) Evaluation model test, (3) FLECHT coupling test. On the first test, one-dimensional treatment of the core thermohydrodynamics was discussed. On the second and third tests, the test results were compared with the results calculated by the evaluation model codes and the results of the corresponding FLECHT-SET test (Run 2714B), respectively. The work was performed under contracts with the Atomic Energy Bureau of Science and Technology Agency of Japan. (author)

  13. Results from Super-Kamiokande

    International Nuclear Information System (INIS)

    Super-Kamiokande has updated the results on solar and atmospheric neutrinos with data corresponding to 830-920 live days. We here present the results on the energy spectrum and day-night variation of solar neutrinos. We also present the updated results on the zenith-angle distributions of fully-contained events, partially-contained events, through-going muons and stopping muons produced by atmospheric neutrinos. A new analysis for distinguishing νμ → ντ and νμ → νs oscillations is presented. The results disfavors νμ → νs oscillation at about 2σ level

  14. MER ARA pyroshock test results

    Science.gov (United States)

    Chang, Kurng Y.

    2004-01-01

    This paper presents the shock test results achieved in the MER ARA/brush motor pyroshock qualification. The results of MER flight system pyrofiring tests in comparison with the ARA shock test requirements are discussed herein. Alternate test methods were developed in an effort to qualify the critical MER equipment for adequate performance in the actual flight pyroshock condition.

  15. The vector resultant phase shifter

    International Nuclear Information System (INIS)

    A new type of voltage controlled phase shifter developed by HIRFL laboratory is better than mechanical phase shifter in all respects of performance, price, and reliability. It's principle is based on vector composition, so this new phase shifter is called vector resultant voltage controlled phase shifter. This new phase shifter has been applied in HIRFL phase stabilization system and satisfactory result has been obtained

  16. Latest Electroweak Results from CDF

    Energy Technology Data Exchange (ETDEWEB)

    Lancaster, Mark

    2010-05-01

    The latest results in electroweak physics from proton anti-proton collisions at the Fermilab Tevatron recorded by the CDF detector are presented. The results provide constraints on parton distribution functions, the mass of the Higgs boson and beyond the Standard Model physics.

  17. Top physics results at CDF

    Energy Technology Data Exchange (ETDEWEB)

    Vickey, Trevor; /Illinois U., Urbana

    2005-05-01

    The most recent results on top quark physics at CDF are reported. Measurements of cross-section and mass are presented, and the status of single top quark production searches are discussed. The results obtained from probing various top quark properties are also presented.

  18. [The "incorrect" laboratory result. II: Common misinterpretations of laboratory results].

    Science.gov (United States)

    Thiery, J; Fiedler, G M

    2004-04-01

    In the second part of our review the most frequent misinterpretations of laboratory results in the daily clinical practise are discussed. Special attention has been given to frequent misinterpretations in the analysis of electrolytes, enzymes and hormones in plasma/serum (pseudohyperkalemia, macroenzymes, macroprolactinemia). Misinterpretations of the testing of blood gases, serum glucose, lipid concentrations, and calcium are described in greater detail. In addition, potential errors in the urinanalysis and the importance of adequate sampling of blood specimens for coagulation testing are described. The hematological results can be misinterpreted in the presence of EDTA-induced pseudothrombocytenia and of irregular immunoglobulines. Immunological methods themselves can lead to misinterpretations of the laboratory result, e. g. caused by the high dose hook effect and interferences in the presence of rheumatoid factor or HAMA. Finally clinical relevant errors in the therapeutic drug monitoring are discussed which are associated with the limited specificity of the antibodies in the commonly used immunological tests. PMID:15151138

  19. Solar neutrino results from SAGE

    International Nuclear Information System (INIS)

    We report the status of the Russian-American Gallium solar neutrino Experiment (SAGE). The solar neutrino result for SAGE III, 20 runs during the measuring period May 1995 through December 1997, is 56.7 +9.3/-8.7(stat.)+4.6/-4.8(syst.) SNU. The combined result for 57 measurements from 1990 through 1997 (SAGE I+II+III) is 66.9 +7.1/-6.8 (stat) +5.4/-5.7 (syst) SNU. The final result of the SAGE 51Cr experiment to check the response of SAGE to low energy neutrinos is also presented

  20. New QCD results from LEP

    CERN Document Server

    Wengler, T

    2004-01-01

    I review recent QCD results from LEP. The emphasis is on results that represent new studies and on puzzling disagreements of theory and experiment. Further results are nevertheless mentioned by reference. The new studies discussed in more detail are the most precise measurement of unbiased gluon jets to date, strong evidence of color coherence in 3-jet events, and an, albeit unsuccessful, search for penta-quarks. As yet unexplained disagreements are observed in photon-photon collisions for high momentum charged particle and single jet production, and for the total cross section of b-quark production.

  1. Customer interruption cost and results

    Energy Technology Data Exchange (ETDEWEB)

    Eua-Arporn, B.; Bisarnbutra, S. [Chulalongkorn Univ., Bangkok (Thailand)

    1997-12-31

    Results of a comprehensive study on short-term direct impacts and consumer interruption costs, incurred as a result of power supply interruption, were discussed. The emphasis was on questionnaire development, general responses and the average customer damage function of some selected sectors. The customer damage function was established for each category of customers (agriculture, industry, mining, wholesale, retail merchandising, residential, etc) as well as for different locations. Results showed that the average customer damage function depended mostly on customer category. Size and location were not significant factors. 5 refs., 7 tabs.

  2. MAXIPOL: Data Analysis and Results

    OpenAIRE

    Wu, J. H. P.; Zuntz, J.; Abroe, M. E.; Ade, P. A. R.; Bock, J. (Johannes); Borrill, J.; Collins, J.; Hanany, S.; A. H. Jaffe; Johnson, B. R.; Jones, T.; Lee, A.T.; Matsumura, T; Rabii, B.; Renbarger, T.

    2006-01-01

    We present results from and the analysis of data from MAXIPOL, a balloon-borne experiment designed to measure the polarization in the Cosmic Microwave Background (CMB). MAXIPOL is the first CMB experiment to obtain results using a rotating half-wave plate as a rapid polarization modulator. We report results from observations of a sky area of 8 deg^2 with 10-arcmin resolution, providing information up to l~700. We use a maximum-likelihood method to estimate maps of the Q and U Stokes parameter...

  3. Results from NA61/SHINE

    Directory of Open Access Journals (Sweden)

    Unger M.

    2013-06-01

    Full Text Available In this paper we summarize recent results from NA61/SHINE relevant for heavy ion physics, neutrino oscillations and the interpretation of air showers induced by ultra-high energy cosmic rays.

  4. Retrospective Evaluation of Colonoscopy Results

    Directory of Open Access Journals (Sweden)

    Yaşar M et al.

    2010-09-01

    Full Text Available Aim: The aim of this study is the retrospective evaluation of colonoscopy results between 2005 January- 2009 December in General Surgery Department of Düzce University.Materials and Methods: Admitted to our department with lower gastrointestinal symptoms, and colonoscopy is indicated 500 male and 538 female total 1038 patients were performed flexible colonoscopic examinations after bowel cleansing.Results: According to results of colonoscopic findings, 42.9% No pathology, 32.5% Hemorrhoids, 17.6% Anal fissures were detected.Conclusion: As a result of this study, half of patients admitted to our surgical clinic with lower gastrointestinal complaints have no pathology and in the other half of patients have various pathologies such as hemorrhoids and anal fissures.

  5. Electroweak experimental results at LEP

    International Nuclear Information System (INIS)

    Recent data on precision tests of the standard model at LEP are presented and compared with the theoretical expectations. These results are obtained by a preliminary analysis of all the data collected at LEP between 1990 and 1995

  6. Results of Neptunium Disposal Testing

    International Nuclear Information System (INIS)

    Researchers investigated the neutralization of neptunium solution from H-Canyon Tank 16.4 and the properties of the resulting slurry. This work investigated slurry properties from a single neutralization protocol and limited storage times

  7. Electroweak phase transition recent results

    CERN Document Server

    Csikor, Ferenc

    2000-01-01

    Recent results of four-dimensional (4d) lattice simulations on the finite temperature electroweak phase transition (EWPT) are discussed. The phase transition is of first order in the SU(2)-Higgs model below the end point Higgs mass 66.5$\\pm$1.4 GeV. For larger masses a rapid cross-over appears. This result completely agrees with the results of the dimensional reduction approach. Including the full Standard Model (SM) perturbatively the end point is at 72.1$\\pm$1.4 GeV. Combined with recent LEP Higgs mass lower bounds, this excludes any EWPT in the SM. A one-loop calculation of the static potential makes possible a precise comparison of the lattice and perturbative results. Recent 4d lattice studies of the Minimal Supersymmetric SM (MSSM) are also mentioned.

  8. Disclosure of stress test results

    OpenAIRE

    Berlin, Mitchell

    2015-01-01

    Should regulatory bank examinations be made public? Regulators have argued that the confidentiality of the examination process promotes frank exchanges between bankers and examiners and that public disclosure of examination results could have a chilling effect. I examine the tradeoffs in a world in which examination results can be kept confidential, but regulatory interventions are observable by market participants, as they typically are for stress tests. Inducing banks to communicate truthfu...

  9. Summary of Results from COBE

    OpenAIRE

    Smoot, George F.

    1999-01-01

    This work presents a summary of major cosmological results from the COBE (Cosmic Background Explorer) satellite mission. The results include a precise measurement of the Cosmic Microwave Background (CMB) radiation intensity, discovery and maps of the CMB anisotropy, large scale observations of the CMB polarization, and the detection and measurement of the diffuse infrared background. This summary was occassioned by and is part of the proceedings for the 3K Cosmology Conference held at Rome in...

  10. Summary of Results from COBE

    CERN Document Server

    Smoot, G F

    1999-01-01

    This work presents a summary of major cosmological results from the COBE (Cosmic Background Explorer) satellite mission. The results include a precise measurement of the Cosmic Microwave Background (CMB) radiation intensity, discovery and maps of the CMB anisotropy, large scale observations of the CMB polarization, and the detection and measurement of the diffuse infrared background. This summary was occassioned by and is part of the proceedings for the 3K Cosmology Conference held at Rome in October 1998.

  11. Results-Oriented Educational Leadership

    OpenAIRE

    Grãdinaru Cãtãlin; Toma Sorin-George

    2014-01-01

    All types of organizations, including educational ones, are results-oriented as increasing competition drives them towards achieving performance. Educational system reform has always represented a fundamental issue that concerns many stakeholders. In this respect, the implementation of a results-oriented approach in education demands responsible and efficient leadership. The aims of our paper are to briefly present the school as an educational organization, and to emphasize the relationship b...

  12. Electroweak results from the tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Wood, D. [Fermi National Accelerator Laboratory, Batavia, IL (United States)

    1997-01-01

    Electroweak results are presented from the CDF and DO experiments based on data collected in recent runs of the Fermilab Tevatron Collider. The measurements include the mass and width of the W boson, the production cross sections of the W and Z bosons, and the W charge asymmetry. Additional results come from studies of events with pairs of electroweak gauge bosons and include limits on anomalous couplings.

  13. Strong purifying selection in endogenous retroviruses in the saltwater crocodile (Crocodylus porosus) in the Northern Territory of Australia

    OpenAIRE

    Chong Amanda Yoon-Yee; Atkinson Sarah Jane; Isberg Sally; Gongora Jaime

    2012-01-01

    Abstract Background Endogenous retroviruses (ERVs) are remnants of exogenous retroviruses that have integrated into the nuclear DNA of a germ-line cell. Here we present the results of a survey into the ERV complement of Crocodylus porosus, the saltwater crocodile, representing 45 individuals from 17 sampling locations in the Northern Territory of Australia. These retroelements were compared with published ERVs from other species of Crocodylia (Crocodilians; alligators, caimans, gharials and c...

  14. Planck 2013 results. I. Overview of products and scientific results

    CERN Document Server

    Ade, P.A.R.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Banday, A.J.; Barreiro, R.B.; Bartelmann, M.; Bartlett, J.G.; Battaner, E.; Benabed, K.; Benoit, A.; Benoit-Levy, A.; Bernard, J.P.; Bersanelli, M.; Bielewicz, P.; Bobin, J.; Bock, J.J.; Bonaldi, A.; Bond, J.R.; Borrill, J.; Bouchet, F.R.; Boulanger, F.; Bowyer, J.W.; Bridges, M.; Bucher, M.; Burigana, C.; Butler, R.C.; Cappellini, B.; Cardoso, J.F.; Carr, R.; Casale, M.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.R.; Chen, X.; Chiang, L.Y.; Chiang, H.C.; Christensen, P.R.; Church, S.; Clements, D.L.; Colombi, S.; Colombo, L.P.L.; Couchot, F.; Coulais, A.; Crill, B.P.; Curto, A.; Cuttaia, F.; Danese, L.; Davies, R.D.; Davis, R.J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Delouis, J.M.; Desert, F.X.; Dickinson, C.; Diego, J.M.; Dole, H.; Donzelli, S.; Dore, O.; Douspis, M.; Dunkley, J.; Dupac, X.; Efstathiou, G.; Ensslin, T.A.; Eriksen, H.K.; Falgarone, E.; Finelli, F.; Foley, S.; Forni, O.; Frailis, M.; Franceschi, E.; Freschi, M.; Fromenteau, S.; Gaier, T.C.; Galeotta, S.; Gallegos, J.; Gandolfo, B.; Ganga, K.; Giard, M.; Giardino, G.; Giraud-Heraud, Y.; Gonzalez-Nuevo, J.; Gorski, K.M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Haissinski, J.; Hansen, F.K.; Hanson, D.; Harrison, D.; Helou, G.; Henrot-Versille, S.; Hernandez-Monteagudo, C.; Herranz, D.; Hildebrandt, S.R.; Hivon, E.; Hobson, M.; Holmes, W.A.; Hornstrup, A.; Hovest, W.; Huffenberger, K.M.; Jaffe, T.R.; Jaffe, A.H.; Jewell, J.; Jones, W.C.; Juvela, M.; Kangaslahti, P.; Keihanen, E.; Keskitalo, R.; Kisner, T.S.; Kneissl, R.; Knoche, J.; Knox, L.; Kunz, M.; Kurki-Suonio, H.; Lagache, G.; Lahteenmaki, A.; Lamarre, J.M.; Lasenby, A.; Laureijs, R.J.; Lawrence, C.R.; Le Jeune, M.; Leach, S.; Leahy, J.P.; Leonardi, R.; Leon-Tavares, J.; Leroy, C.; Lesgourgues, J.; Liguori, M.; Lilje, P.B.; Linden-Vornle, M.; Lopez-Caniego, M.; Lowe, S.; Lubin, P.M.; Macias-Perez, J.F.; Maffei, B.; Maino, D.; Mandolesi, N.; Maris, M.; Marshall, D.J.; Martin, P.G.; Martinez-Gonzalez, E.; Masi, S.; Matarrese, S.; Matthai, F.; Mazzotta, P.; McDonald, A.; McGehee, P.; Meinhold, P.R.; Melchiorri, A.; Melin, J.B.; Mendes, L.; Mennella, A.; Migliaccio, M.; Miniscalco, R.; Mitra, S.; Miville-Deschenes, M.A.; Moneti, A.; Montier, L.; Morgante, G.; Mortlock, D.; Moss, A.; Munshi, D.; Murphy, J.A.; Naselsky, P.; Nati, F.; Natoli, P.; Netterfield, C.B.; Norgaard-Nielsen, H.U.; North, C.; Noviello, F.; Novikov, D.; Novikov, I.; O'Dwyer, I.J.; Osborne, S.; Oxborrow, C.A.; Paci, F.; Pagano, L.; Pajot, F.; Paladini, R.; Paoletti, D.; Partridge, B.; Pasian, F.; Patanchon, G.; Pearson, D.; Pearson, T.J.; Perdereau, O.; Perotto, L.; Perrotta, F.; Piacentini, F.; Piat, M.; Pierpaoli, E.; Pietrobon, D.; Plaszczynski, S.; Platania, P.; Pointecouteau, E.; Polenta, G.; Ponthieu, N.; Popa, L.; Poutanen, T.; Pratt, G.W.; Prezeau, G.; Prunet, S.; Puget, J.L.; Rachen, J.P.; Reach, W.T.; Rebolo, R.; Reinecke, M.; Remazeilles, M.; Renault, C.; Ricciardi, S.; Riller, T.; Ringeval, C.; Ristorcelli, I.; Rocha, G.; Rosset, C.; Rossetti, M.; Roudier, G.; Rowan-Robinson, M.; Rubino-Martin, J.A.; Rusholme, B.; Salerno, E.; Sandri, M.; Santos, D.; Savini, G.; Scott, D.; Seiffert, M.D.; Shellard, E.P.S.; Smoot, G.F.; Spencer, L.D.; Starck, J.L.; Stolyarov, V.; Stompor, R.; Sudiwala, R.; Sunyaev, R.; Sureau, F.; Sutton, D.; Suur-Uski, A.S.; Sygnet, J.F.; Tauber, J.A.; Tavagnacco, D.; Taylor, D.; Terenzi, L.; Texier, D.; Toffolatti, L.; Tomasi, M.; Tristram, M.; Tucci, M.; Tuovinen, J.; Turler, M.; Tuttlebee, M.; Umana, G.; Valenziano, L.; Valiviita, J.; Van Tent, B.; Varis, J.; Vibert, L.; Vielva, P.; Villa, F.; Vittorio, N.; Wade, L.A.; Wandelt, B.D.; Watson, R.; Watson, C.; White, M.; White, S.D.M.; Wilkinson, A.; Yvon, D.; Zacchei, A.; Zonca, A.

    2014-01-01

    The ESA's Planck satellite, dedicated to studying the early universe, was launched on May 2009 and has been surveying the microwave and submillimetre sky since August 2009. In March 2013, ESA and the Planck Collaboration publicly released the initial cosmology products based on the first 15.5 months of Planck operations, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper describes the mission and its performance, and gives an overview of the processing and analysis of the data, the characteristics of the data, the main scientific results, and the science data products and papers in the release. Scientific results include robust support for the standard, six parameter LCDM model of cosmology and improved measurements for the parameters that define this model, including a highly significant deviation from scale invariance of the primordial power spectrum. The Planck values for some of these parameters and others derived from them are significantly different fr...

  15. Results from PHENIX at RHIC

    CERN Document Server

    Tannenbaum, M J

    2009-01-01

    Results from PHENIX at RHIC in p-p and Au+Au collisions are presented from the perspective of measurements in p-p collisions at the CERN ISR which serve as a basis for many of the techniques used. Notable results include the equality of the suppression of inclusive pi0 and direct electrons (from the decay of heavy quarks) in the range of transverse momentuum 4 < pT < 9 GeV/c in central Au+Au collisions. This result appears to strongly disfavor the explanation of suppression as due to radiative energy loss of partons traversing a Quark Gluon Plasma but opens up a fundamental discussion of how Fermions get mass, whether all six quarks are nearly massless in a QGP and how to test this.

  16. Result-Based Public Governance

    DEFF Research Database (Denmark)

    Boll, Karen

    Within the public sector, many institutions are either steered by governance by targets or result-based governance. The former sets up quantitative internal production targets, while the latter advocates that production is planned according to outcomes which are defined as institution......-produced effects on individuals or businesses in society; effects which are often produced by ‘nudging’ the citizenry in a certain direction. With point of departure in these two governance-systems, the paper explores a case of controversial inspection of businesses’ negative VAT accounts and it describes the...... performance measure that guides the inspectors’ inspection (or nudging) of the businesses. The analysis shows that although a result-based governance system is advocated on a strategic level, performance measures which are not ‘result-based’ are developed and used in the daily coordination of work. The paper...

  17. INFCE - essential results and consequences

    International Nuclear Information System (INIS)

    The results of INFCE are summarized. The conference was organized because there had been agreement that its results would not be legally binding upon the 66 countries and 5 international organizations participating, but only constitute recommendations for national energy policies. After some basic statements and a description of some results of the study, such as the availability of nuclear fuels; uranium enrichment; long-term guarantees of the availability of technology, fuel and heavy water; reprocessing; plutonium handling; fuel recycling; fast breeders; spent fuel management; waste treatment and final storage; advanced fuel cycles and reactor concepts, the author makes a first evaluation: The study in general had not confirmed U.S. efforts seeking postponement. Instead, it had supported the German non-proliferation policy, which integrates countries into existing international control systems instead of depriving them of supplies of nuclear materials and, in this way, of the peaceful uses of such materials. (HSCH)

  18. Catastrophic disruption experiments: Recent results

    Science.gov (United States)

    Martelli, G.; Ryan, E. V.; Nakamura, A. M.; Giblin, I.

    1994-01-01

    This paper presents a review of the progress in the field of catastrophic disruption experiments over the past 4 years, since the publication of the review paper by Fujiwara et al. (1989). We describe the development of new techniques to produce shattering impacts relevant to the study of the collisional evolution of the asteroids, and summarize the results from numerous experiments which have been performed to date, using a variety of materials for both the impactor and the targets. Some of these, such as ice-on-ice, loose aggregates and pressurized targets, are quite new and have provided novel and exciting results. Some of the gaps existing previously in the data on fragment ejection-angle distributions, as well as translational and rotational velocity fields (including fine fragments) have been filled, and these new results will be surveyed.

  19. Planck 2013 results. I. Overview of products and scientific results

    Science.gov (United States)

    Planck Collaboration; Ade, P. A. R.; Aghanim, N.; Alves, M. I. R.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Aussel, H.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Barrena, R.; Bartelmann, M.; Bartlett, J. G.; Bartolo, N.; Basak, S.; Battaner, E.; Battye, R.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J.-P.; Bersanelli, M.; Bertincourt, B.; Bethermin, M.; Bielewicz, P.; Bikmaev, I.; Blanchard, A.; Bobin, J.; Bock, J. J.; Böhringer, H.; Bonaldi, A.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Boulanger, F.; Bourdin, H.; Bowyer, J. W.; Bridges, M.; Brown, M. L.; Bucher, M.; Burenin, R.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cappellini, B.; Cardoso, J.-F.; Carr, R.; Carvalho, P.; Casale, M.; Castex, G.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.-R.; Chen, X.; Chiang, H. C.; Chiang, L.-Y.; Chon, G.; Christensen, P. R.; Churazov, E.; Church, S.; Clemens, M.; Clements, D. L.; Colombi, S.; Colombo, L. P. L.; Combet, C.; Comis, B.; Couchot, F.; Coulais, A.; Crill, B. P.; Cruz, M.; Curto, A.; Cuttaia, F.; Da Silva, A.; Dahle, H.; Danese, L.; Davies, R. D.; Davis, R. J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Déchelette, T.; Delabrouille, J.; Delouis, J.-M.; Démoclès, J.; Désert, F.-X.; Dick, J.; Dickinson, C.; Diego, J. M.; Dolag, K.; Dole, H.; Donzelli, S.; Doré, O.; Douspis, M.; Ducout, A.; Dunkley, J.; Dupac, X.; Efstathiou, G.; Elsner, F.; Enßlin, T. A.; Eriksen, H. K.; Fabre, O.; Falgarone, E.; Falvella, M. C.; Fantaye, Y.; Fergusson, J.; Filliard, C.; Finelli, F.; Flores-Cacho, I.; Foley, S.; Forni, O.; Fosalba, P.; Frailis, M.; Fraisse, A. A.; Franceschi, E.; Freschi, M.; Fromenteau, S.; Frommert, M.; Gaier, T. C.; Galeotta, S.; Gallegos, J.; Galli, S.; Gandolfo, B.; Ganga, K.; Gauthier, C.; Génova-Santos, R. T.; Ghosh, T.; Giard, M.; Giardino, G.; Gilfanov, M.; Girard, D.; Giraud-Héraud, Y.; Gjerløw, E.; González-Nuevo, J.; Górski, K. M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J. E.; Haissinski, J.; Hamann, J.; Hansen, F. K.; Hansen, M.; Hanson, D.; Harrison, D. L.; Heavens, A.; Helou, G.; Hempel, A.; Henrot-Versillé, S.; Hernández-Monteagudo, C.; Herranz, D.; Hildebrandt, S. R.; Hivon, E.; Ho, S.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hou, Z.; Hovest, W.; Huey, G.; Huffenberger, K. M.; Hurier, G.; Ilić, S.; Jaffe, A. H.; Jaffe, T. R.; Jasche, J.; Jewell, J.; Jones, W. C.; Juvela, M.; Kalberla, P.; Kangaslahti, P.; Keihänen, E.; Kerp, J.; Keskitalo, R.; Khamitov, I.; Kiiveri, K.; Kim, J.; Kisner, T. S.; Kneissl, R.; Knoche, J.; Knox, L.; Kunz, M.; Kurki-Suonio, H.; Lacasa, F.; Lagache, G.; Lähteenmäki, A.; Lamarre, J.-M.; Langer, M.; Lasenby, A.; Lattanzi, M.; Laureijs, R. J.; Lavabre, A.; Lawrence, C. R.; Le Jeune, M.; Leach, S.; Leahy, J. P.; Leonardi, R.; León-Tavares, J.; Leroy, C.; Lesgourgues, J.; Lewis, A.; Li, C.; Liddle, A.; Liguori, M.; Lilje, P. B.; Linden-Vørnle, M.; Lindholm, V.; López-Caniego, M.; Lowe, S.; Lubin, P. M.; Macías-Pérez, J. F.; MacTavish, C. J.; Maffei, B.; Maggio, G.; Maino, D.; Mandolesi, N.; Mangilli, A.; Marcos-Caballero, A.; Marinucci, D.; Maris, M.; Marleau, F.; Marshall, D. J.; Martin, P. G.; Martínez-González, E.; Masi, S.; Massardi, M.; Matarrese, S.; Matsumura, T.; Matthai, F.; Maurin, L.; Mazzotta, P.; McDonald, A.; McEwen, J. D.; McGehee, P.; Mei, S.; Meinhold, P. R.; Melchiorri, A.; Melin, J.-B.; Mendes, L.; Menegoni, E.; Mennella, A.; Migliaccio, M.; Mikkelsen, K.; Millea, M.; Miniscalco, R.; Mitra, S.; Miville-Deschênes, M.-A.; Molinari, D.; Moneti, A.; Montier, L.; Morgante, G.; Morisset, N.; Mortlock, D.; Moss, A.; Munshi, D.; Murphy, J. A.; Naselsky, P.; Nati, F.; Natoli, P.; Negrello, M.; Nesvadba, N. P. H.; Netterfield, C. B.; Nørgaard-Nielsen, H. U.; North, C.; Noviello, F.; Novikov, D.; Novikov, I.; O'Dwyer, I. J.; Orieux, F.; Osborne, S.; O'Sullivan, C.; Oxborrow, C. A.; Paci, F.; Pagano, L.; Pajot, F.; Paladini, R.; Pandolfi, S.; Paoletti, D.; Partridge, B.; Pasian, F.; Patanchon, G.; Paykari, P.; Pearson, D.; Pearson, T. J.; Peel, M.; Peiris, H. V.; Perdereau, O.; Perotto, L.; Perrotta, F.; Pettorino, V.; Piacentini, F.; Piat, M.; Pierpaoli, E.; Pietrobon, D.; Plaszczynski, S.; Platania, P.; Pogosyan, D.; Pointecouteau, E.; Polenta, G.; Ponthieu, N.; Popa, L.; Poutanen, T.; Pratt, G. W.; Prézeau, G.; Prunet, S.; Puget, J.-L.; Pullen, A. R.; Rachen, J. P.; Racine, B.; Rahlin, A.; Räth, C.; Reach, W. T.; Rebolo, R.; Reinecke, M.; Remazeilles, M.; Renault, C.; Renzi, A.; Riazuelo, A.; Ricciardi, S.; Riller, T.; Ringeval, C.; Ristorcelli, I.; Robbers, G.; Rocha, G.; Roman, M.; Rosset, C.; Rossetti, M.; Roudier, G.; Rowan-Robinson, M.; Rubiño-Martín, J. A.; Ruiz-Granados, B.; Rusholme, B.; Salerno, E.; Sandri, M.; Sanselme, L.; Santos, D.; Savelainen, M.; Savini, G.; Schaefer, B. M.; Schiavon, F.; Scott, D.; Seiffert, M. D.; Serra, P.; Shellard, E. P. S.; Smith, K.; Smoot, G. F.; Souradeep, T.; Spencer, L. D.; Starck, J.-L.; Stolyarov, V.; Stompor, R.; Sudiwala, R.; Sunyaev, R.; Sureau, F.; Sutter, P.; Sutton, D.; Suur-Uski, A.-S.; Sygnet, J.-F.; Tauber, J. A.; Tavagnacco, D.; Taylor, D.; Terenzi, L.; Texier, D.; Toffolatti, L.; Tomasi, M.; Torre, J.-P.; Tristram, M.; Tucci, M.; Tuovinen, J.; Türler, M.; Tuttlebee, M.; Umana, G.; Valenziano, L.; Valiviita, J.; Van Tent, B.; Varis, J.; Vibert, L.; Viel, M.; Vielva, P.; Villa, F.; Vittorio, N.; Wade, L. A.; Wandelt, B. D.; Watson, C.; Watson, R.; Wehus, I. K.; Welikala, N.; Weller, J.; White, M.; White, S. D. M.; Wilkinson, A.; Winkel, B.; Xia, J.-Q.; Yvon, D.; Zacchei, A.; Zibin, J. P.; Zonca, A.

    2014-11-01

    The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14 May 2009 and has been scanning the microwave and submillimetre sky continuously since 12 August 2009. In March 2013, ESA and the Planck Collaboration released the initial cosmology products based on the first 15.5 months of Planck data, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper gives an overview of the mission and its performance, the processing, analysis, and characteristics of the data, the scientific results, and the science data products and papers in the release. The science products include maps of the cosmic microwave background (CMB) and diffuse extragalactic foregrounds, a catalogue of compact Galactic and extragalactic sources, and a list of sources detected through the Sunyaev-Zeldovich effect. The likelihood code used to assess cosmological models against the Planck data and a lensing likelihood are described. Scientific results include robust support for the standard six-parameter ΛCDM model of cosmology and improved measurements of its parameters, including a highly significant deviation from scale invariance of the primordial power spectrum. The Planck values for these parameters and others derived from them are significantly different from those previously determined. Several large-scale anomalies in the temperature distribution of the CMB, first detected by WMAP, are confirmed with higher confidence. Planck sets new limits on the number and mass of neutrinos, and has measured gravitational lensing of CMB anisotropies at greater than 25σ. Planck finds no evidence for non-Gaussianity in the CMB. Planck's results agree well with results from the measurements of baryon acoustic oscillations. Planck finds a lower Hubble constant than found in some more local measures. Some tension is also present between the amplitude of matter fluctuations (σ8) derived from

  20. First results from SAGE II

    International Nuclear Information System (INIS)

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76+21-18(stat)+5-7(sys) SNU. Combined with the SAGE I result, the capture rate is 74+13-12(stat)+5-7(sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models. copyright 1995 American Institute of Physics

  1. Results from Numerical General Relativity

    Science.gov (United States)

    Baker, John G.

    2011-01-01

    For several years numerical simulations have been revealing the details of general relativity's predictions for the dynamical interactions of merging black holes. I will review what has been learned of the rich phenomenology of these mergers and the resulting gravitational wave signatures. These wave forms provide a potentially observable record of the powerful astronomical events, a central target of gravitational wave astronomy. Asymmetric radiation can produce a thrust on the system which may accelerate the single black hole resulting from the merger to high relative velocity.

  2. Impossibility results for distributed computing

    CERN Document Server

    Attiya, Hagit

    2014-01-01

    To understand the power of distributed systems, it is necessary to understand their inherent limitations: what problems cannot be solved in particular systems, or without sufficient resources (such as time or space). This book presents key techniques for proving such impossibility results and applies them to a variety of different problems in a variety of different system models. Insights gained from these results are highlighted, aspects of a problem that make it difficult are isolated, features of an architecture that make it inadequate for solving certain problems efficiently are identified

  3. Recent QCD Results from ATLAS

    CERN Document Server

    Sinervo, Pekka; The ATLAS collaboration

    2016-01-01

    The ATLAS collaboration has performed studies of a wide range of QCD phenomena, from soft particle to hard photon and jet production. Among recent results are the measurement of Z event shape observables sensitive to the modelling of the underlying event, and the measurement of diffractive dijet production with a large rapidity gap, which tests the interplay of soft and hard phenomena. The inelastic pp cross section, a fundamental property of the strong interaction, is measured. Precision measurements of the isolated high pT inclusive photon cross section at cms energies of 8TeV test the theoretical predictions and constrain parton density functions. An overview of these results is given.

  4. First results from SAGE II

    International Nuclear Information System (INIS)

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76-18+21 (stat) -7+5 (sys) SNU. combined with the SAGE I result, the capture rate is 74-12+13 (stat) -7+5 (sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models

  5. VERITAS: Status and Early Results

    International Nuclear Information System (INIS)

    A new generation of observatories have revolutionized the study of the very high energy gamma-ray sky. The recently-commissioned VERITAS observatory, an array of four 12 m diameter imaging atmospheric Cherenkov telescopes designed to search for gamma-ray sources in the energy band between 100 GeV and 50 TeV, is one of these new instruments. VERITAS has been taking scientific data with three or more telescopes since November 2006. We discuss the thrust of the VERITAS observation program and present results from these early observations, including new results on the sources IC433, LSI+61 303, 1ES 1218+304 and M87. (author)

  6. Audit result and its users

    OpenAIRE

    Shalimova Nataliya S.

    2014-01-01

    The article identifies essence of the “audit result” and “users of audit result” notions and characteristics of the key audit results user. It shows that in order to give a wide characteristic of users it is expedient to unite all objects, which could be used (audit report, fact of refusal to conduct audit and information that is submitted to managers in the process of audit) with the term “audit result” and classify it depending on the terms of submission by final and intermediate result. Th...

  7. Supersymmetry results at the Tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Manca, Giulia; /Liverpool U.

    2005-05-01

    The Run II physics programme of the Tevatron is proceeding with more than 300 pb{sup -1} of analysis quality data, collected at a center-of-mass energy of 1.96 TeV. Searches for supersymmetric particles are starting to set new limits, improving over the LEP and Run I results and exploring new regions of parameter space. They present recent results in Supersymmetry with the upgraded CDF and D0 detectors and give some prospects for the future of these searches.

  8. Neutrinos: summary of new results

    International Nuclear Information System (INIS)

    After a short presentation of the neutrino mass-mixing parameters, the core of the paper will be devoted to the recent experimental results from SNO, KamLAND and K2K. As a conclusion, I will discuss possible CP violation measurements with neutrinos. The paper is structured as follows: 1 Neutrino Oscillations Physics; 2 New results in solar neutrinos; 2.1 The SNO experiment; 2.2 The KamLAND experiment; 4 Opening the road toward a measurement of neutrino CP violation?

  9. Communicating Performance Assessments Results - 13609

    International Nuclear Information System (INIS)

    The F-Area Tank Farms (FTF) and H-Area Tank Farm (HTF) are owned by the U.S. Department of Energy (DOE) and operated by Savannah River Remediation LLC (SRR), Liquid Waste Operations contractor at DOE's Savannah River Site (SRS). The FTF and HTF are active radioactive waste storage and treatment facilities consisting of 51 carbon steel waste tanks and ancillary equipment such as transfer lines, evaporators and pump tanks. Performance Assessments (PAs) for each Tank Farm have been prepared to support the eventual closure of the underground radioactive waste tanks and ancillary equipment. PAs provide the technical bases and results to be used in subsequent documents to demonstrate compliance with the pertinent requirements for final closure of the Tank Farms. The Tank Farms are subject to a number of regulatory requirements. The State regulates Tank Farm operations through an industrial waste water permit and through a Federal Facility Agreement approved by the State, DOE and the Environmental Protection Agency (EPA). Closure documentation will include State-approved Tank Farm Closure Plans and tank-specific closure modules utilizing information from the PAs. For this reason, the State of South Carolina and the EPA must be involved in the performance assessment review process. The residual material remaining after tank cleaning is also subject to reclassification prior to closure via a waste determination pursuant to Section 3116 of the Ronald W. Reagan National Defense Authorization Act of Fiscal Year 2005. PAs are performance-based, risk-informed analyses of the fate and transport of FTF and HTF residual wastes following final closure of the Tank Farms. Since the PAs serve as the primary risk assessment tools in evaluating readiness for closure, it is vital that PA conclusions be communicated effectively. In the course of developing the FTF and HTF PAs, several lessons learned have emerged regarding communicating PA results. When communicating PA results it is

  10. Crime and punishment: Further results

    OpenAIRE

    Garoupa, Nuno

    1998-01-01

    I consider a general specification of criminals' objective function and argue that, when the general non-expected utility theory is substituted for the traditional expected utility theory, the high-fine-low-probability result (Becker, 1968) only holds under specific and strong restrictions.

  11. New ATLAS Higgs physics results

    CERN Document Server

    CERN. Geneva

    2014-01-01

    New Higgs physics results from the ATLAS experiment using the full Run-1 LHC dataset, corresponding to an integrated luminosity of approximately 25 fb-1, of proton-proton collisions at 7 TeV and 8 TeV, will be presented.

  12. ATLAS H(125) difermion results

    CERN Document Server

    Shabalina, Elizaveta; The ATLAS collaboration

    2016-01-01

    We present a summary of the recent measurements of the Standard Model Higgs production in fermionic decay modes. New results are presented for the dimuon Higgs decays, for Higgs decaying in a $b\\bar{b}$ pair in the VH and ttH production modes and in the VBF channel with photon production.

  13. State Test Results Are Predictable

    Science.gov (United States)

    Tienken, Christopher H.

    2014-01-01

    Out-of-school, community demographic and family-level variables have an important influence on student achievement as measured by large-scale standardized tests. Studies described here demonstrated that about half of the test score is accounted for by variables outside the control of teachers and school administrators. The results from these…

  14. NA48: rare decay results

    International Nuclear Information System (INIS)

    Recent results on the kaon rare decays: KS → γγ, KS,L → π+π-e+e- and KS → π0e+e- measured in NA48 experiment at CERN, are presented in this paper. These results are based on data taken in 1998 and 1999, during 2 days in 1999 data was recorded with a factor 200 higher beam intensity than the usual KS beam, resulting in 2.3 * 108 KS decays. Among other results the following branching ratios have been computed : BR(KS → γγ) = (2.58 ± 0.36 ± 0.22)*10-6, BR(KL → π+π-e+e-) = (3.1 ± 0.1 ± 0.2)*10-7, BR(KS → π+π-e+e-) = (4.3 ± 0.2 ± 0.3)*10-5 and BR(KS → π0e+e-) -7. (A.C.)

  15. Juridical utilization of dosimetric results

    International Nuclear Information System (INIS)

    The problems of the legal use of the results of dosimetry, for the solution of an action for instance, are considered first with respect to civil and occasionally administrative third part liability law making a distinction between common law and the special regime of civil liability for nuclear damage, secondly with respect to social security law

  16. B0s Oscillation Results

    CERN Document Server

    Willocq, S

    2002-01-01

    We review new studies of the time dependence of B0s - B0s-bar mixing by the ALEPH, DELPHI and SLD Collaborations, with an emphasis on the different analysis methods used. Combining all available results yields a preliminary lower limit on the oscillation frequency of dms > 14.4 ps-1 at the 95% C.L.

  17. Complexity Results in Epistemic Planning

    DEFF Research Database (Denmark)

    Bolander, Thomas; Jensen, Martin Holm; Schwarzentruber, Francois

    Epistemic planning is a very expressive framework that extends automated planning by the incorporation of dynamic epistemic logic (DEL). We provide complexity results on the plan existence problem for multi-agent planning tasks, focusing on purely epistemic actions with propositional precondition...

  18. Recent Results from the Tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Demorden, L.

    1998-06-01

    We review recent results from fixed-target and collider experiments at the Fermilab Tevatron. Among the topics discussed are jet production rates, {alpha}{sub S} measurements, the {anti d}/{anti u} ratio in the proton sea, diffraction, heavy quark physics and leptoquark searches.

  19. Results-based management - Developing one's key results areas (KRAs).

    Science.gov (United States)

    Kansal, Om Prakash; Goel, Sonu

    2015-01-01

    In spite of aspiring to be a good manager, we public health experts fail to evaluate ourselves against our personal and professional goals. The Key Result Areas (KRAs) or key performance indicators (KPIs) help us in setting our operational (day-to-day) and/or strategic (long-term) goals followed by grading ourselves at different times of our careers. These shall help in assessing our strengths and weaknesses. The weakest KRA should set the maximum extent to which one should use his/her skills and abilities to have the greatest impact on his/her career. PMID:26021650

  20. Results from PLUTO at PETRA

    International Nuclear Information System (INIS)

    Results obtained at the e+e- storage ring PETRA by the PLUTO collaboration at c.m. energies of 13, 17 and 27.4 GeV are presented. New limits on QED cut-off parameters are determined from Bhabha scattering; at 27.4 GeV the limits are Λsub(+) > 38 GeV and Λsub(-) > 60 GeV. The measured values of the total hadronic cross section, and the study of the jet character of the hadronic events are well consistent with the expected production of b mesons (with qsub(b) = 1/3), but do not require additional new quarks with charge 2/3. Hadronic events from two-photon exchange processes are observed with comparable rates as events from one-photon exchange. First results on the hadronic cross section in γγ collisions are given. (orig.)

  1. Recent results on tau decays

    International Nuclear Information System (INIS)

    New preliminary ARGUS results on τ decays are presented. We have measured the inclusive 3-prong branching ratio as well as the exclusive branching ratios for 6 major τ decay channels: τ- → ε-ν-bareντ.τ- → μ-ν-barμντ.τ- → π- /K-ντ.τ- → π-π-π-ντ.τ- → π-π0ντ and τ- → π- π- π+ π0 ντ†. Our results are in contradiction to the recent CELLO measurements, which indicate that the τ decay problem disappeared. A search was made for 26 different neutrinoless τ decays. No evidence has been found, that the τ decay problem might be connected to such neutrinoless decays. In addition, the hadronic final states of τ decays into π π0ντ and π-π-π+ντ have been analyzed. (author)

  2. PHENIX recent heavy flavor results

    CERN Document Server

    ,

    2014-01-01

    Cold nuclear matter (CNM) effects provide an important baseline for the interpretation of data in heavy ion collisions. Such effects include nuclear shadowing, Cronin effect, and initial patron energy loss, and it is interesting to study the dependence on impact parameter and kinematic region. Heavy quark production is a good measurement to probe the CNM effects particularly on gluons, since heavy quarks are mainly produced via gluon fusions at RHIC energy. The PHENIX experiment has experiment has ability to study the CNM effects by measuring heavy quark production in $d$$+$Au collisions at variety of kinematic ranges. Comparisons of heavy quark production at different rapidities allow us to study modification of gluon density function in the Au nucleus depending on momentum fraction. Furthermore, comparisons to the results from heavy ion collisions (Au$+$Au and Cu$+$Cu) measured by PHENIX provide insight into the role of CNM effects in such collisions. Recent PHENIX results on heavy quark production are disc...

  3. First results from SAGE II

    Energy Technology Data Exchange (ETDEWEB)

    Aburashitov, J.N.; Faizov, E.L.; Gavrin, V.N.; Gusev, A.O.; Kalikhov, A.V.; Knodel, T.V.; Knyshenko, I.I.; Kornoukhov, V.N.; Mirmov, I.N.; Pshukov, A.M.; Shalagin, A.M.; Shikhin, A.A.; Timofeyev, P.V.; Veretenkin, E.P.; Vermul, V.M.; Zatsepin, G.T. [Institute for Nuclear Research, Russian Academy of Sciences Moscow, 117312 (Russian Federation); Bowles, T.J.; Nico, J.S.; Teasdale, W.A.; Wark, D.L.; Wilkerson, J.F. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Cleveland, B.T.; Daily, T.; Davis, R. Jr.; Lande, K.; Lee, C.K.; Wildenhain, P.W. [University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States); Elliott, S.R. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Cherry, M.L. [Louisiana State University, Baton Rouge, Louisiana 70803 (United States)

    1995-07-10

    The Russian-American Gallium solar neutrino Experiment (SAGE) began the second phase of operation (SAGE II) in September of 1992. Monthly measurements of the integral flux of solar neutrinos have been made with 55 tonnes of gallium. The K-peak results of the first five runs of SAGE II give a capture rate of 76{sup +21}{sub {minus}18}(stat){sup +5}{sub {minus}7}(sys) SNU. Combined with the SAGE I result, the capture rate is 74{sup +13}{sub {minus}12}(stat){sup +5}{sub {minus}7}(sys) SNU. This represents only 56%--60% of the capture rate predicted by different Standard Solar Models. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

  4. Basic results on braid groups

    CERN Document Server

    Gonzalez-Meneses, Juan

    2010-01-01

    These are Lecture Notes of a course given by the author at the French-Spanish School "Tresses in Pau", held in Pau (France) in October 2009. It is basically an introduction to distinct approaches and techniques that can be used to show results in braid groups. Using these techniques we provide several proofs of well known results in braid groups, namely the correctness of Artin's presentation, that the braid group is torsion free, or that its center is generated by the full twist. We also recall some solutions of the word and conjugacy problems, and that roots of a braid are always conjugate. We also describe the centralizer of a given braid. Most proofs are classical ones, using modern terminology. I have chosen those which I find simpler or more beautiful.

  5. First Physics Results from ALICE

    International Nuclear Information System (INIS)

    ALICE is the LHC experiment dedicated to the study of heavy-ion collisions. The main purpose of ALICE is to investigate the properties of a state of deconfined nuclear matter, the Quark Gluon Plasma. Heavy flavour measurements will play a crucial role in this investigation. The physics programme of ALICE has started by studying proton-proton collisions at unprecedented high energies. We will present the first results on open heavy flavour and quarkonia in proton-proton collisions at √s = 7 TeV measured by the ALICE experiment at both mid- and forward-rapidities. We will conclude with the prospects for heavy flavour and quarkonium measurements in both proton-proton and nucleus-nucleus collisions. Also presented are first results of neutral meson reconstruction and its perspectives, as well as further physics studies. (author)

  6. Forget about data, deliver results

    Science.gov (United States)

    Walter, Roland

    2015-12-01

    High-energy astrophysics space missions have pioneered and demonstrated the power of legacy data sets for generating new discoveries, especially when analysed in ways original researchers could not have anticipated. The only way to ensure that the data of present observatories can be effectively used in the future is to allow users to perform on-the-fly data analysis to produce straightforwardly scientific results for any sky position, time and energy intervals without requiring mission specific software or detailed instrumental knowledge. Providing a straightforward interface to complex data and data analysis makes the data and the process of generating science results available to the public and higher education and promotes the visibility of the investment in science to the society. This is a fundamental step to transmit the values of science and to evolve towards a knowledge society.

  7. Presentation of RTE results 2003

    International Nuclear Information System (INIS)

    For RTE, the financial year 2003 was marked by a number of achievements: our financial performances registered a clear improvement, above objectives, with turnover growing strongly; net income reached levels almost three times higher than those recorded in 2002; the economic rate of return rose to 7.1%; and debt was reduced by 470 Meuros. These results are explained by the substantial improvement in productivity, which has risen by 5% per year on average over the last three years

  8. SPQR -- Spectroscopy: Prospects, Questions & Results

    CERN Document Server

    Pennington, M R

    2014-01-01

    Tremendous progress has been made in mapping out the spectrum of hadrons over the past decade with plans to make further advances in the decade ahead. Baryons and mesons, both expected and unexpected, have been found, the results of precision experiments often with polarized beams, polarized targets and sometimes polarization of the final states. All these hadrons generate poles in the complex energy plane that are consequences of strong coupling QCD. They reveal how this works.

  9. Solar neutrino results from SAGE

    International Nuclear Information System (INIS)

    The solar neutrino capture rate measured by the Russian-American Gallium Experiment on metallic gallium during the period January 1990 through December 1997 is (67.2-7.0-3.0+7.2+3.5) SNU, where the uncertainties are statistical and systematic, respectively. This result represents a 7 σ depression in the neutrino flux compared with predicted standard solar model rates. The experimental procedures and data analysis are presented

  10. VERITAS: Status and Latest Results

    CERN Document Server

    Maier, G

    2007-01-01

    VERITAS is an atmospheric Cherenkov telescope array designed to study astrophysi cal sources of very-high-energy gamma radiation. Located in southern Arizona, USA, the array consists of four 12m-diameter imaging Cherenkov telescopes. All four telescopes have been deployed at the basecamp of the Whipple Observatory and began full operation in early 2007. This paper describes the operational status of VERITAS, outlines the initial performance parameters of the instrument, and presents the latest results that have been obtained.

  11. Recent HERMES Results on DVCS

    OpenAIRE

    Krauss, B.; collaboration, for the HERMES

    2005-01-01

    The interference of Deeply Virtual Compton Scattering (DVCS) and Bremsstrahlung leads to a beam-charge asymmetry that can be observed for exclusive photon production in the collision of high energy leptons and nucleons/nuclei. Recent results for a hydrogen and a deuterium target are reported and a consistent tendency for a rise of the cosine phi coefficient with momentum transfer |t| has been found.

  12. Results from the FDIRC prototype

    International Nuclear Information System (INIS)

    We present results from a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC). This detector was designed as a prototype of the particle identification system for the SuperB experiment, and comprises 1/12 of the SuperB barrel azimuthal coverage with partial electronics implementation. The prototype was tested in the SLAC Cosmic Ray Telescope (CRT) which provides 3-D muon tracking with an angular resolution of ∼1.5 mrad, track position resolution of 5–6 mm, start time resolution of 70 ps, and a muon low-energy cutoff of ∼2 GeV provided by an iron range stack. The quartz focusing photon camera couples to a full-size BaBar DIRC bar box and is read out by 12 Hamamatsu H8500 MaPMTs providing 768 pixels. We used IRS2 waveform digitizing electronics to read out the MaPMTs. We present several results from our on-going development activities that demonstrate that the new optics design works very well, including: (a) single photon Cherenkov angle resolutions with and without chromatic corrections, (b) S/N ratio between the Cherenkov peak and background, which consists primarily of ambiguities in possible photon paths to a given pixel, (c) dTOP=TOPmeasured–TOPexpected resolutions, and (d) performance of the detector in the presence of high-rate backgrounds. We also describe data analysis methods and point out limits of the present performance. - Highlights: • We present results from a novel Cherenkov imaging detector called the Focusing DIRC (FDIRC). • The prototype was tested in the SLAC Cosmic Ray Telescope (CRT) which provides 3-D muon tracking. • We present several results from our on-going development activities that demonstrate that new optics design works very well. • We describe data analysis methods and point out limits of the present performance

  13. LHC Results Highlights (CLASHEP 2013)

    CERN Document Server

    Gonzalez, O

    2015-01-01

    The good performance of the LHC provided enough data at 7 TeV and 8 TeV to allow the experiments to perform very competitive measurements and to expand the knowledge about the fundamental interaction far beyond that from previous colliders. This report summarizes the highlights of the results obtained with these data samples by the four large experiments, covering all the topics of the physics program and focusing on those exploiting the possibilities of the LHC.

  14. Audit result and its users

    Directory of Open Access Journals (Sweden)

    Shalimova Nataliya S.

    2014-01-01

    Full Text Available The article identifies essence of the “audit result” and “users of audit result” notions and characteristics of the key audit results user. It shows that in order to give a wide characteristic of users it is expedient to unite all objects, which could be used (audit report, fact of refusal to conduct audit and information that is submitted to managers in the process of audit with the term “audit result” and classify it depending on the terms of submission by final and intermediate result. The article offers to define audit results user as a person, persons or category of persons for whom the auditor prepares the audit report and, in cases, envisaged by international standards of the audit and domestic legislative and regulatory acts, provides other additional information concerning audit issues. In order to identify the key audit results user the article distributes all audit tasks into two groups depending on possibilities of identification of users. The article proves that the key user should be identified especially in cases of a mandatory audit and this process should go in interconnection with the mechanism of allocation of a key user of financial reports. It offers to consider external users with direct financial interests, who cannot request economic subjects directly to provide information and who should rely on general financial reports and audit report when receiving significant portion of information they need, as the key user. The article makes proposals on specification of the categorical mechanism in the sphere of audit, which are the basis for audit quality assessment, identification of possibilities and conditions of appearance of the necessary and sufficient trust to the auditor opinion.

  15. Evaluating the RELM Test Results

    OpenAIRE

    Sachs, Michael K.; Ya-Ting Lee; Turcotte, Donald L.; Holliday, James R.; Rundle, John B.

    2012-01-01

    We consider implications of the Regional Earthquake Likelihood Models (RELM) test results with regard to earthquake forecasting. Prospective forecasts were solicited for M≥4.95 earthquakes in California during the period 2006–2010. During this period 31 earthquakes occurred in the test region with M≥4.95. We consider five forecasts that were submitted for the test. We compare the forecasts utilizing forecast verification methodology developed in the atmospheric sciences, specifically for torn...

  16. Categorization Axioms for Clustering Results

    OpenAIRE

    Yu, Jian; Xu, Zongben

    2014-01-01

    Cluster analysis has attracted more and more attention in the field of machine learning and data mining. Numerous clustering algorithms have been proposed and are being developed due to diverse theories and various requirements of emerging applications. Therefore, it is very worth establishing an unified axiomatic framework for data clustering. In the literature, it is an open problem and has been proved very challenging. In this paper, clustering results are axiomatized by assuming that an p...

  17. Recent DIII-D results

    International Nuclear Information System (INIS)

    This paper summarizes the recent DIII-D experimental results and the development of the relevant hardware systems. The DIII-D program focuses on divertor solutions for next generation tokamaks such as International Thermo-nuclear Experimental Reactor (ITER) and Tokamak Physics Experiment (TPX), and on developing configurations with enhanced confinement and stability properties that will lead to a more compact and economical fusion reactor. The DIII-D program carries out this research in an integrated fashion

  18. Labeling Clusters of Search Results

    OpenAIRE

    Nycander, Martin

    2013-01-01

    This project evaluates different algorithms which could be used in a summary information retrieval (IR) application for Swedish texts. Instead of the traditional search results the summary application would generate a summary document of the various subtopics of an IR query. First it is noted that in order to nd subtopics of a query, some kind of document clustering is needed. k-means is chosen as a candidate document clustering algorithm and evaluated in the environment of an IR application....

  19. Geometric Results for Compressible Magnetohydrodynamics

    OpenAIRE

    Arter, Wayne

    2013-01-01

    Recently, compressible magnetohydrodynamics (MHD) has been elegantly formulated in terms of Lie derivatives. This paper exploits the geometrical properties of the Lie bracket to give new insights into the properties of compressible MHD behaviour, both with and without feedback of the magnetic field on the flow. These results are expected to be useful for the solution of MHD equations in both tokamak fusion experiments and space plasmas.

  20. First half 2006 financial results

    International Nuclear Information System (INIS)

    Areva provides technological solutions for highly reliable nuclear power generation and electricity transmission and distribution. The group is the world leader in nuclear power and the only company to cover all industrial activities in this field. This Press release presents the first half 2006 financial results: the overall performance and the performance by division (front end, reactors and services, back end, transmission and distribution). (A.L.B.)

  1. SPQR -- Spectroscopy: Prospects, Questions & Results

    Energy Technology Data Exchange (ETDEWEB)

    Pennington, Michael R. [JLAB

    2014-06-01

    Tremendous progress has been made in mapping out the spectrum of hadrons over the past decade with plans to make further advances in the decade ahead. Baryons and mesons, both expected and unexpected, have been found, the results of precision experiments often with polarized beams, polarized targets and sometimes polarization of the final states. All these hadrons generate poles in the complex energy plane that are consequences of strong coupling QCD. They reveal how this works.

  2. Results of CRESST phase I

    International Nuclear Information System (INIS)

    Results of the CRESST experiment at Gran Sasso using 262 g sapphire calorimeters with tungsten phase transition thermometers are presented. Calibration and analysis methods are described. Data taken in 2000 have been used to place limits on WIMP dark matter particles in the galactic halo. The sapphire detectors are especially sensitive for low-mass WIMPS with spin-dependent interaction and improve on existing limits in this region

  3. Results of CRESST phase I

    CERN Document Server

    Pröbst, F; Bruckmayer, M; Bucci, C; Cooper, S; Di Stefano, P; Feilitzsch, F V; Frank, T; Hauff, D; Jagemann, T; Jochum, J; Keeling, R; Kraus, H; Marchese, J; Ramachers, Y; Schnagl, J; Seidel, W; Sergeyev, I; Stark, M; Stodolsky, L; Wulandari, H

    2002-01-01

    Results of the CRESST experiment at Gran Sasso using 262 g sapphire calorimeters with tungsten phase transition thermometers are presented. Calibration and analysis methods are described. Data taken in 2000 have been used to place limits on WIMP dark matter particles in the galactic halo. The sapphire detectors are especially sensitive for low-mass WIMPS with spin-dependent interaction and improve on existing limits in this region.

  4. Recent double beta decay results

    Energy Technology Data Exchange (ETDEWEB)

    Balysh, A. (Kurchatov Institute, 123 182 Moscow (Russian Federation)); Beck, M. (Max-Planck-Institut fuer Kernphysik, W-6900 Heidelberg (Germany)); Belyaev, S.T. (Kurchatov Institute, 123 182 Moscow (Russian Federation)); Bensch, F.; Bockholt, J. (Max-Planck-Institut fuer Kernphysik, W-6900 Heidelberg (Germany)); Demehin, A.; Gurov, A. (Kurchatov Institute, 123 182 Moscow (Russian Federation)); Heusser, G.; Hirsch, M.; Klapdor-Kleingrothaus, H.V. (Max-Planck-Institut fuer Kernphysik, W-6900 Heidelberg (Germany)); Kondratenko, I.; Lebedev, V.I. (Kurchatov Institute, 123 182 Moscow (Russian Federation)); Maier, B. (Max-Planck-Institut fuer Kernphysik, W-6900 Heidelberg (Germany)); Mueller, A. (Istituto Nazionale di Fisica Nucleare LNGS, 67010 Assergi (Italy)); Petry, F.; Piepke, A.; Strecker, H.; Voellinger, M.; Zuber, K. (Max-Planck-Institut fuer Kernphysik, W-6900 Heidelberg (Germany))

    1992-02-01

    The status and recent results of second generation [beta][beta]-experiments using isotopically enriched source materials are described. These experiments are at present the most sensitive tools to distinguish Dirac from Majorana neutrinos. The at present most advanced experimental techniques, namely the use of high-resolution calorimetric detectors and of time projection chambers are compared. New limits on the Majorana neutrino mass as well as for the Majoron-neutrino coupling are presented.

  5. MAXIPOL: Data Analysis and Results

    CERN Document Server

    Wu, J H P; Abroe, M E; Ade, P A R; Bock, J; Borrill, J; Collins, J; Hanany, S; Jaffe, A H; Johnson, B R; Jones, T; Lee, A T; Matsumura, T; Rabii, B; Renbarger, T; Richards, P L; Smoot, G F; Stompor, R; Tran, H T; Winant, C D

    2006-01-01

    We present results from and the analysis of data from MAXIPOL, a balloon-borne experiment designed to measure the polarization in the Cosmic Microwave Background (CMB). MAXIPOL is the first CMB experiment to obtain results using a rotating half-wave plate as a rapid polarization modulator. We report results from observations of a sky area of 8 deg^2 with 10-arcmin resolution, providing information up to l~700. We use a maximum-likelihood method to estimate maps of the Q and U Stokes parameters from the demodulated time streams, and then both Bayesian and frequentist approaches to compute the EE, EB, and BB power spectra. Detailed formalisms of the analyses are given. A variety of tests show no evidence for systematic errors. The Bayesian analysis gives weak evidence for an EE signal. The EE power is 55^{+51}_{-45} \\mu K^2 at the 68% confidence level for l=151-693. Its likelihood function is asymmetric and skewed positive such that with a uniform prior the probability of a positive EE power is 96%. The powers ...

  6. Presentation of RTE results 2003

    International Nuclear Information System (INIS)

    In 2003, RTE recorded a clear improvement in its financial results, and continued its debt reduction programme. The financial year 2003 was marked by a clear improvement in RTE's financial performance: results exceeded objectives, with turnover growing strongly, net income reached levels almost three times higher than those recorded in 2002, the economic rate of return rose to 7.1%, and debt was reduced by 470 Meuros. These results are explained by the substantial improvement in productivity, which has risen by 5% per year on average over the last three years. Net income has almost tripled due to RTE's improved productivity completed by a significant rise in its turnover and stabilizing operating costs RTE's finances therefore remain healthy, enabling the company to continue its debt reduction programme. Satisfactory economic and financial rates of return. Deadlines facing RTE in 2004: in application of the second European Directive, adopted on 26 June 2003, RTE faces two major deadlines in 2004: - the implementation of the 2. phase in the process of opening up the French electricity market, - its legal independence. On 1 July 2004, the market will be opened up to competition for all professional customers. At that date RTE, like all other electricity transmission system operators (TSOs) in the European Union, should be a legally independent body. The new central role of TSOs in Europe: how are electricity transmission system operators in other EU countries organised?

  7. SAVNET. Current developments and results

    International Nuclear Information System (INIS)

    Complete text of publication follows. Important results have been acquired using the measurements of VLF amplitude and phase signals from the South America VLF Network (SAVNET) stations. This network, which is an international project lead by Brazil in cooperation with Peru and Argentina, started operating in April 2006, and now counts on eight stations (Atibaia, Palmas, Santa Maria and Estacao Antarctica Comandante Ferraz in Brazil; Piura, Punta-Lobos and Ica, in Peru; CASLEO, in Argentina). Researches, through the last decades, have been demonstrated the versatility of the VLF technique for many scientific and technological purposes. In this work, we summarize some recent relevant results with SAVNET data bases. Studying the daily C-region post sunrise hump (PSRH) parameter time series, two periods with distinct behavior patterns were observed: one, from March to October, which is characterized by a slow variability well related to the mean solar illumination over the VLF propagation paths; and another period with more variability possibly related to the temperature and Nitric Oxide concentration variations as by space instruments, between October and March. Furthermore, the analysis of phase and amplitude daily variations show seasonal effects which were removed and the remaining signals compared to the incident solar Lyman-α radiation. These results along with future initiatives using SAVNET will be outlined in this presentation.

  8. Presentation of the results 97

    International Nuclear Information System (INIS)

    Gaz de France (GDF) presents in a press kit the main results achieved in 1997. The European community has formulated a project of definition of rules concerning the natural gas market. Minima values for annual consumptions have been defined and the consumption and use of natural gas in EC countries is described. The financial results of GDF in 1997 are compared with previous years. Net sales grew by nearly 1 billion french francs to reach 55 billion. Overall sales were down by 4% but the share of natural gas in french energy consumption increased and sales to industrial users went up in particular due to new cogeneration plants installed in 1996. A comparison of gas prices in Europe is given for the years 1985 to 1998. The efforts of GDF to offer increased quality of services concerning in particular safety aspects as checking programs and installation of new safeguard appliances are described. The efforts of GDF to increase the energy market share of natural gas resulted in the development of new products like cogeneration, air conditioning and fuels for automotive needs. (C.B.)

  9. Results Evaluation in Reduction Rhinoplasty

    Directory of Open Access Journals (Sweden)

    Arima, Lisandra Megumi

    2011-01-01

    Full Text Available Introduction: Final results evaluation after rhinoplasty is a not a topic widely studied from the patient's viewpoint. Objective:Evaluate the satisfaction of the patients submitted to reduction rhinoplasty, from the questionnaire Rhinoplasty Outcomes Evaluation (ROE. Method: Longitudinal study, retrospective cut type, of the preoperative and postoperative satisfaction. The sample was composed by 28 patients who were submitted to rhinoplasty and answered the ROE questionnaire. Three variables were obtained: satisfaction note that the patient had with his/her image before the surgery; note of satisfaction with the current appearance; the difference of the average satisfaction notes between postoperative and preoperative approaches. Results: The postoperative note was higher than the preoperative in all patients. We noticed a difference between the average of the postoperative and preoperative of 48.3 (p75 considered to be an excellent outcome (67.9%. Conclusions: The ROE questionnaire is a helpful tool to show the satisfaction of the patient submitted to reduction rhinoplasty. About 92% of the patients submitted to reduction rhinoplasty consider the postoperative result to be good or excellent.

  10. Planck 2015 results. I. Overview of products and scientific results

    CERN Document Server

    Adam, R; Aghanim, N.; Akrami, Y.; Alves, M.I.R.; Arnaud, M.; Arroja, F.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A.J.; Barreiro, R.B.; Bartlett, J.G.; Bartolo, N.; Basak, S.; Battaglia, P.; Battaner, E.; Battye, R.; Benabed, K.; Benoit, A.; Benoit-Levy, A.; Bernard, J.P.; Bersanelli, M.; Bertincourt, B.; Bielewicz, P.; Bonaldi, A.; Bonavera, L.; Bond, J.R.; Borrill, J.; Bouchet, F.R.; Boulanger, F.; Bucher, M.; Burigana, C.; Butler, R.C.; Calabrese, E.; Cardoso, J.F.; Carvalho, P.; Casaponsa, B.; Castex, G.; Catalano, A.; Challinor, A.; Chamballu, A.; Chary, R.R.; Chiang, H.C.; Chluba, J.; Christensen, P.R.; Church, S.; Clemens, M.; Clements, D.L.; Colombi, S.; Colombo, L.P.L.; Combet, C.; Comis, B.; Contreras, D.; Couchot, F.; Coulais, A.; Crill, B.P.; Cruz, M.; Curto, A.; Cuttaia, F.; Danese, L.; Davies, R.D.; Davis, R.J.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Delouis, J.M.; Desert, F.X.; Di Valentino, E.; Dickinson, C.; Diego, J.M.; Dolag, K.; Dole, H.; Donzelli, S.; Dore, O.; Douspis, M.; Ducout, A.; Dunkley, J.; Dupac, X.; Efstathiou, G.; Eisenhardt, P.R.M.; Elsner, F.; Ensslin, T.A.; Eriksen, H.K.; Falgarone, E.; Fantaye, Y.; Farhang, M.; Feeney, S.; Fergusson, J.; Fernandez-Cobos, R.; Feroz, F.; Finelli, F.; Florido, E.; Forni, O.; Frailis, M.; Fraisse, A.A.; Franceschet, C.; Franceschi, E.; Frejsel, A.; Frolov, A.; Galeotta, S.; Galli, S.; Ganga, K.; Gauthier, C.; Genova-Santos, R.T.; Gerbino, M.; Ghosh, T.; Giard, M.; Giraud-Heraud, Y.; Giusarma, E.; Gjerlow, E.; Gonzalez-Nuevo, J.; Gorski, K.M.; Grainge, K.J.B.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, J.E.; Hamann, J.; Handley, W.; Hansen, F.K.; Hanson, D.; Harrison, D.L.; Heavens, A.; Helou, G.; Henrot-Versille, S.; Hernandez-Monteagudo, C.; Herranz, D.; Hildebrandt, S.R.; Hivon, E.; Hobson, M.; Holmes, W.A.; Hornstrup, A.; Hovest, W.; Huang, Z.; Huffenberger, K.M.; Hurier, G.; Ilic, S.; Jaffe, A.H.; Jaffe, T.R.; Jin, T.; Jones, W.C.; Juvela, M.; Karakci, A.; Keihanen, E.; Keskitalo, R.; Kiiveri, K.; Kim, J.; Kisner, T.S.; Kneissl, R.; Knoche, J.; Krachmalnicoff, N.; Kunz, M.; Kurki-Suonio, H.; Lacasa, F.; Lagache, G.; Lahteenmaki, A.; Lamarre, J.M.; Langer, M.; Lasenby, A.; Lattanzi, M.; Lawrence, C.R.; Le Jeune, M.; Leahy, J.P.; Lellouch, E.; Leonardi, R.; Leon-Tavares, J.; Lesgourgues, J.; Levrier, F.; Lewis, A.; Liguori, M.; Lilje, P.B.; Linden-Vornle, M.; Lindholm, V.; Liu, H.; Lopez-Caniego, M.; Lubin, P.M.; Ma, Y.Z.; Macias-Perez, J.F.; Maggio, G.; Mak, D.S.Y.; Mandolesi, N.; Mangilli, A.; Marchini, A.; Marcos-Caballero, A.; Marinucci, D.; Marshall, D.J.; Martin, P.G.; Martinelli, M.; Martinez-Gonzalez, E.; Masi, S.; Matarrese, S.; Mazzotta, P.; McEwen, J.D.; McGehee, P.; Mei, S.; Meinhold, P.R.; Melchiorri, A.; Melin, J.B.; Mendes, L.; Mennella, A.; Migliaccio, M.; Mikkelsen, K.; Mitra, S.; Miville-Deschenes, M.A.; Molinari, D.; Moneti, A.; Montier, L.; Moreno, R.; Morgante, G.; Mortlock, D.; Moss, A.; Mottet, S.; Muenchmeyer, M.; Munshi, D.; Murphy, J.A.; Narimani, A.; Naselsky, P.; Nastasi, A.; Nati, F.; Natoli, P.; Negrello, M.; Netterfield, C.B.; Norgaard-Nielsen, H.U.; Noviello, F.; Novikov, D.; Novikov, I.; Olamaie, M.; Oppermann, N.; Orlando, E.; Oxborrow, C.A.; Paci, F.; Pagano, L.; Pajot, F.; Paladini, R.; Pandolfi, S.; Paoletti, D.; Partridge, B.; Pasian, F.; Patanchon, G.; Pearson, T.J.; Peel, M.; Peiris, H.V.; Pelkonen, V.M.; Perdereau, O.; Perotto, L.; Perrott, Y.C.; Perrotta, F.; Pettorino, V.; Piacentini, F.; Piat, M.; Pierpaoli, E.; Pietrobon, D.; Plaszczynski, S.; Pogosyan, D.; Pointecouteau, E.; Polenta, G.; Popa, L.; Pratt, G.W.; Prezeau, G.; Prunet, S.; Puget, J.L.; Rachen, J.P.; Racine, B.; Reach, W.T.; Rebolo, R.; Reinecke, M.; Remazeilles, M.; Renault, C.; Renzi, A.; Ristorcelli, I.; Rocha, G.; Roman, M.; Romelli, E.; Rosset, C.; Rossetti, M.; Rotti, A.; Roudier, G.; d'Orfeuil, B.Rouille; Rowan-Robinson, M.; Rubino-Martin, J.A.; Ruiz-Granados, B.; Rumsey, C.; Rusholme, B.; Said, N.; Salvatelli, V.; Salvati, L.; Sandri, M.; Sanghera, H.S.; Santos, D.; Saunders, R.D.E.; Sauve, A.; Savelainen, M.; Savini, G.; Schaefer, B.M.; Schammel, M.P.; Scott, D.; Seiffert, M.D.; Serra, P.; Shellard, E.P.S.; Shimwell, T.W.; Shiraishi, M.; Smith, K.; Souradeep, T.; Spencer, L.D.; Spinelli, M.; Stanford, S.A.; Stern, D.; Stolyarov, V.; Stompor, R.; Strong, A.W.; Sudiwala, R.; Sunyaev, R.; Sutter, P.; Sutton, D.; Suur-Uski, A.S.; Sygnet, J.F.; Tauber, J.A.; Tavagnacco, D.; Terenzi, L.; Texier, D.; Toffolatti, L.; Tomasi, M.; Tornikoski, M.; Tristram, M.; Troja, A.; Trombetti, T.; Tucci, M.; Tuovinen, J.; Turler, M.; Umana, G.; Valenziano, L.; Valiviita, J.; Van Tent, B.; Vassallo, T.; Vidal, M.; Viel, M.; Vielva, P.; Villa, F.; Wade, L.A.; Walter, B.; Wandelt, B.D.; Watson, R.; Wehus, I.K.; Welikala, N.; Weller, J.; White, M.; White, S.D.M.; Wilkinson, A.; Yvon, D.; Zacchei, A.; Zibin, J.P.; Zonca, A.

    2015-01-01

    The European Space Agency's Planck satellite, dedicated to studying the early Universe and its subsequent evolution, was launched 14~May 2009 and scanned the microwave and submillimetre sky continuously between 12~August 2009 and 23~October 2013. In February~2015, ESA and the Planck Collaboration released the second set of cosmology products based on data from the entire Planck mission, including both temperature and polarization, along with a set of scientific and technical papers and a web-based explanatory supplement. This paper gives an overview of the main characteristics of the data and the data products in the release, as well as the associated cosmological and astrophysical science results and papers. The science products include maps of the cosmic microwave background (CMB), the thermal Sunyaev-Zeldovich effect, and diffuse foregrounds in temperature and polarization, catalogues of compact Galactic and extragalactic sources (including separate catalogues of Sunyaev-Zeldovich clusters and Galactic col...

  11. ISO: highlights of recent results

    Science.gov (United States)

    Metcalfe, L.; Salama, A.

    ESA's Infrared Space Observatory (ISO) mission, operating in the wavelength range from 2.5 to 240 microns, made over 26000 scientific observations during its 2.5 year operational lifetime. ISO's results broke new ground on all scales. New asteroid counts and improved asteroid thermophysical models augmented important advances in Solar System chemistry to comprise a striking body of results addressing our planetary system. In turn, parallels between the chemical composition of Solar System dust and dust around other stars revealed by the comparison of stellar spectra with cometary spectra, together with results on the incidence and stability of stellar disks, recall the birth of our Solar System and point to fundamental similarities with other star systems. Numerous important facts concerning the chemistry of the ISM have unfolded, such as the ubiquity of water and of the probably-organic carriers of the Unidentified Infrared Bands (UIBs). The large systematic body of data on galactic stars has permitted fascinating advances in the characterisation of important aspects of stellar evolution. Investigations of nearby normal galaxies complement template specimens of interacting galaxies. These in turn exemplify galaxy evolutionary processes in the early Universe associated with a huge burst of dust-obscured star formation at redshifts of just below one. This global surge of star formation has vital implications for the interpretation and explanation of major components of the Extragalactic Background Light (EBL) and for charting the global history of star formation and the relative importance of sources which derive their energy from accretion processes. Representative examples of key aspects of ISO's recent scientific output will be presented, once again affirming ISO's place at the forefront of successful space-borne astronomy missions.

  12. German experimental programs and results

    International Nuclear Information System (INIS)

    Reactor pressure vessels and piping of the primary circuit form part of the safety research related components in nuclear power plant. The integrity of these components in the presence of defects of limited size has to be guaranteed under both operational and accident loading conditions. In the period from 1973 to today, on the one hand, within the framework of reactor safety research, the Federal Minister for Education, Science, Research and Technology (Bonn) sponsored a series of research projects which are listed and are logically linked to each other. On the other hand the utilities, manufacturers and vendors of nuclear power plants performed series of tests with pipes and components to solve their specific problems. Having regard to the results of the supporting projects the experimental verification of Leak-Before-Break behavior was to be demonstrated, the postulation of fracture preclusion for piping (straight pipe, bends and branches) confirmed and thereby the safety margin against massive failure also quantified. A general overview is given of the types of defects and loadings, and of the main objectives. As the results reveal, they can be called upon for the safety assessment of ferritic and austenitic piping, in the primary and secondary circuits of nuclear power plant. Moreover, because of the great spread of the test parameters, they are also important for the design and assessment of piping in other technical plant. On the strength of the test results, it appears to be justified to rule out catastrophic fractures (2F-fractures) even on pipes of dimensions corresponding to those of a main coolant pipe of a pressurized water reactor plant on the basis of a mechanical deterministic safety analysis in correspondence with the Basis Safety Concept (Principle of Fracture Exclusion)

  13. Engineering model cryocooler test results

    International Nuclear Information System (INIS)

    This paper reports that recent testing of diaphragm-defined, Stirling-cycle machines and components has demonstrated cooling performance potential, validated the design code, and confirmed several critical operating characteristics. A breadboard cryocooler was rebuilt and tested from cryogenic to near-ambient cold end temperatures. There was a significant increase in capacity at cryogenic temperatures and the performance results compared will with code predictions at all temperatures. Further testing on a breadboard diaphragm compressor validated the calculated requirement for a minimum axial clearance between diaphragms and mating heads

  14. Overview of recent ALICE results

    CERN Document Server

    Gunji, Taku

    2016-01-01

    The ALICE experiment explores the properties of strongly interacting QCD matter at extremely high temperatures created in Pb-Pb collisions at LHC and provides further insight into small-system physics in (high-multiplicity) pp and p-Pb collisions. The ALICE collaboration presented 27 parallel talks, 50 posters, and 1 flash talk at Quark Matter 2015 and covered various topics including collective dynamics, correlations and fluctuations, heavy flavors, quarkonia, jets and high $p_{\\rm T}$ hadrons, electromagnetic probes, small system physics, and the upgrade program. This paper highlights some of the selected results.

  15. Recent electroweak results from ATLAS

    CERN Document Server

    Schmitz, Simon; The ATLAS collaboration

    2016-01-01

    Recent measurements and searches in the electroweak sector of the Standard Model by the ATLAS experiment at the LHC are reported. The results are based on $20.3\\,\\rm fb^{-1}$ of proton-proton collisions at $\\sqrt{s}=8\\,\\rm TeV$ for $WW$, $WZ$, $ZZ$, $Z\\gamma$ and $Z\\gamma\\gamma$ production as well as on $3.2\\,\\rm fb^{-1}$ of proton-proton collisions at $\\sqrt{s}=13\\,\\rm TeV$ for $WZ$ and $ZZ$ production.

  16. Latest DVCS Results from HERMES

    CERN Document Server

    Yaschenko, Sergey

    2010-01-01

    Hard exclusive leptoproduction of real photons on nucleons and nuclei, Deeply Virtual Compton Scattering (DVCS), is one of the theoretically cleanest ways to access Generalized Parton Distributions (GPDs). During 1996–2006 the HERMES experiment at DESY, Hamburg, collected data on DVCS utilizing the HERA polarized electron or positron beams with energies of 27.6 GeV, and longitudinally and transversely polarized or unpolarized gas targets (H, D or heavier nuclei). The azimuthal asymmetries measured in the DVCS process allow access to the imaginary and/or real part of certain combinations of GPDs. An overview of the latest HERMES results on DVCS is presented.

  17. Science verification results from PMAS

    Science.gov (United States)

    Roth, M. M.; Becker, T.; Böhm, P.; Kelz, A.

    2004-02-01

    PMAS, the Potsdam Multi-Aperture Spectrophotometer, is a new integral field instrument which was commissioned at the Calar Alto 3.5m Telescope in May 2001. We report on results obtained from a science verification run in October 2001. We present observations of the low-metallicity blue compact dwarf galaxy SBS0335-052, the ultra-luminous X-ray Source X-1 in the Holmberg;II galaxy, the quadruple gravitational lens system Q2237+0305 (the ``Einstein Cross''), the Galactic planetary nebula NGC7027, and extragalactic planetary nebulae in M31. PMAS is now available as a common user instrument at Calar Alto Observatory.

  18. Science Verification Results from PMAS

    OpenAIRE

    Roth, M. M.; Becker, T; Boehm, P.; Kelz, A.

    2003-01-01

    PMAS, the Potsdam Multi-Aperture Spectrophotometer, is a new integral field instrument which was commissioned at the Calar Alto 3.5m Telescope in May 2001. We report on results obtained from a science verification run in October 2001. We present observations of the low-metallicity blue compact dwarf galaxy SBS0335-052, the ultra-luminous X-ray Source X-1 in the Holmberg II galaxy, the quadruple gravitational lens system Q2237+0305 (the "Einstein Cross"), the Galactic planetary nebula NGC7027,...

  19. Science Verification Results from PMAS

    CERN Document Server

    Roth, M M; Böhm, P; Kelz, A

    2003-01-01

    PMAS, the Potsdam Multi-Aperture Spectrophotometer, is a new integral field instrument which was commissioned at the Calar Alto 3.5m Telescope in May 2001. We report on results obtained from a science verification run in October 2001. We present observations of the low-metallicity blue compact dwarf galaxy SBS0335-052, the ultra-luminous X-ray Source X-1 in the Holmberg II galaxy, the quadruple gravitational lens system Q2237+0305 (the "Einstein Cross"), the Galactic planetary nebula NGC7027, and extragalactic planetary nebulae in M31. PMAS is now available as a common user instrument at Calar Alto Observatory.

  20. Results from IceCube

    Science.gov (United States)

    DeYoung, Tyce

    2016-04-01

    Data from the IceCube Neutrino Observatory have revealed the existence of a flux of high energy neutrinos of extraterrestrial origin, which is observed in a number of analyses spanning different energy ranges, fields of view, and neutrino flavors. The current data are consistent with an isotropic, equal-flavor flux described by a simple power law spectrum, but deviations from this simple model cannot yet be constrained with high precision. The existing observations in this area are reviewed, along with recent results on dark matter searches and observations of cosmic rays.

  1. Recent results on howard's algorithm

    DEFF Research Database (Denmark)

    Miltersen, P.B.

    2013-01-01

    Howard’s algorithm is a fifty-year old generally applicable algorithm for sequential decision making in face of uncertainty. It is routinely used in practice in numerous application areas that are so important that they usually go by their acronyms, e.g., OR, AI, and CAV. While Howard’s algorithm...... is generally recognized as fast in practice, until recently, its worst case time complexity was poorly understood. However, a surge of results since 2009 has led us to a much more satisfactory understanding of the worst case time complexity of the algorithm in the various settings in which it applies...

  2. CELLO results on multiparticle production

    International Nuclear Information System (INIS)

    In this talk result from CELLO on multiparticle production in e+e- annihilation are presented. The three-dimensional distribution of charged particles, and its one- and two-dimensional projections, are extensively studied through the bin-size dependence of their factorial moments. The data are found to have an excellent description by standard Monte Carlo models. This implies an explanation of the observed intermittency behaviour in terms of known physics. The study is extended by an analysis of two-particle rapidity correlations. (orig.)

  3. Recent Higgs Results from CMS

    CERN Document Server

    Sperka, David Michael

    2016-01-01

    Recent results from the CMS collaboration on studies of Higgs boson production are presented. Searches for the 125 GeV Higgs boson using various Standard Model production and decay modes have been performed using $pp$ collisions from the LHC at $\\sqrt{s}=13$ TeV during 2015. The $\\sqrt{s}=13$ TeV dataset, as well as data collected at $\\sqrt{s}=7$ and 8 TeV, have also been used to place constraints on physics beyond the Standard Model involving extended Higgs sectors.

  4. Data bases for LDEF results

    Science.gov (United States)

    Bohnhoff-Hlavacek, Gail

    1993-01-01

    The Long Duration Exposure Facility (LDEF) carried 57 experiments and 10,000 specimens for some 200 LDEF experiment investigators. The external surface of LDEF had a large variety of materials exposed to the space environment which were tested preflight, during flight, and post flight. Thermal blankets, optical materials, thermal control paints, aluminum, and composites are among the materials flown. The investigations have produced an abundance of analysis results. One of the responsibilities of the Boeing Support Contract, Materials and Systems Special Investigation Group, is to collate and compile that information into an organized fashion. The databases developed at Boeing to accomplish this task is described.

  5. Results from IceCube

    Directory of Open Access Journals (Sweden)

    DeYoung Tyce

    2016-01-01

    Full Text Available Data from the IceCube Neutrino Observatory have revealed the existence of a flux of high energy neutrinos of extraterrestrial origin, which is observed in a number of analyses spanning different energy ranges, fields of view, and neutrino flavors. The current data are consistent with an isotropic, equal-flavor flux described by a simple power law spectrum, but deviations from this simple model cannot yet be constrained with high precision. The existing observations in this area are reviewed, along with recent results on dark matter searches and observations of cosmic rays.

  6. Long Trace Profiler survey results

    International Nuclear Information System (INIS)

    Today the Long Trace Profiler (LTP) is widely accepted as a viable way to measure X-ray mirrors, and at some institutions is the only instrument available for measuring long, high-curvature aspheres. Although some questions of absolute accuracy over the entire LTP measurement range remain unanswered, a comparison of LTPs can still be made to assess measurement variation. Recently a round robin survey of some LTPs within the United States has been made using a single set of mirrors. These mirrors were used to characterize the performance of an LTP over its advertised range of operation. The results of this survey are presented here

  7. Long Trace Profiler survey results

    Energy Technology Data Exchange (ETDEWEB)

    Irick, Steve.

    1999-07-01

    Today the Long Trace Profiler (LTP) is widely accepted as a viable way to measure X-ray mirrors, and at some institutions is the only instrument available for measuring long, high-curvature aspheres. Although some questions of absolute accuracy over the entire LTP measurement range remain unanswered, a comparison of LTPs can still be made to assess measurement variation. Recently a round robin survey of some LTPs within the United States has been made using a single set of mirrors. These mirrors were used to characterize the performance of an LTP over its advertised range of operation. The results of this survey are presented here.

  8. FFTF status and test results

    International Nuclear Information System (INIS)

    A general description of the FFTF is presented concerning the construction progress; status of startup and selected startup test results; and planned experiment program during and subsequent to the startup testing program. The FFTF is a 400 MWt, sodium cooled test reactor plant consisting of a fast-neutron reactor fueled by mixed plutonium oxide-uranium oxide fuel elements, three independent heat transport loops, extensive instrumentation, fuel handling equipment, and auxiliary systems which support the main reactor and cooling systems. The FFTF contains no steam generators, electrical generating equipment, or breeding blankets. Heat generated in the reactor is released to the ambient atmosphere by twelve large sodium-to-air heat exchangers

  9. RSG Deployment Case Testing Results

    Energy Technology Data Exchange (ETDEWEB)

    Owsley, Stanley L.; Dodson, Michael G.; Hatchell, Brian K.; Seim, Thomas A.; Alexander, David L.; Hawthorne, Woodrow T.

    2005-09-01

    The RSG deployment case design is centered on taking the RSG system and producing a transport case that houses the RSG in a safe and controlled manner for transport. The transport case was driven by two conflicting constraints, first that the case be as light as possible, and second that it meet a stringent list of Military Specified requirements. The design team worked to extract every bit of weight from the design while striving to meet the rigorous Mil-Spec constraints. In the end compromises were made primarily on the specification side to control the overall weight of the transport case. This report outlines the case testing results.

  10. Recent results for Mark III

    Energy Technology Data Exchange (ETDEWEB)

    Brient, J.C.

    1987-12-01

    This paper presents recent results from the Mark III detector at SPEAR, in the open charm sector. The first topic discussed is the reanalysis of the direct measurement of the D hadronic branching fractions, where a detailed study has been made of the Cabibbo suppressed and multi-..pi../sup 0/'s D decays backgrounds in the double tag sample. Next, the Dalitz plot analysis of the D decays to K..pi pi.. is presented, leading to the relative fractions of three-body versus pseudoscalarvector decays. 7 refs., 5 figs.

  11. Recent results for Mark III

    International Nuclear Information System (INIS)

    This paper presents recent results from the Mark III detector at SPEAR, in the open charm sector. The first topic discussed is the reanalysis of the direct measurement of the D hadronic branching fractions, where a detailed study has been made of the Cabibbo suppressed and multi-π0's D decays backgrounds in the double tag sample. Next, the Dalitz plot analysis of the D decays to Kππ is presented, leading to the relative fractions of three-body versus pseudoscalarvector decays. 7 refs., 5 figs

  12. First half 2005 financial results

    International Nuclear Information System (INIS)

    With manufacturing facilities in over 40 countries and a sales network in over 100, AREVA offers customers technological solutions for nuclear power generation and electricity transmission and distribution. The group also provides interconnect systems to the telecommunications, computer and automotive markets. This document presents the first half 2005 financial results of the group: 1 - overall performance: sales revenue, operating income, consolidated net income, operating cash flow, balance sheet; 2 - outlook; 3 - performance by business division: front-end division, reactors and services division, back end division, transmission and distribution division, connectors division

  13. THE ECONOMIC RESULTS OF GLOBALIZATION

    OpenAIRE

    Mustafa Talas; Yaşar Kaya

    2014-01-01

    Globalization is the fact that it is one of the most important issue in the world in recent years. It has shown to us that globalization has got concrete results in economical life. It is possible to tell that this fact is a scroll which effects social and political systems. Globalizatin has been seen that it would have effect on both its follower and its contrary. Besides economy has exhibited the strong direction of globalization. People, culture and economies has connected each other a...

  14. EDF, Areva: 2006 trading results

    International Nuclear Information System (INIS)

    In 2006, EDF achieved a turnover of 58.9 billion euros, it means a 15.4% increase compared to the previous year. The EDF's policy has been to decrease its debts by 3.7 billion euros to reach 14.9 billion euros and to invest 3.8 billion euros in France and 2.1 billion euros abroad. 2.8 billion euros have been affected to the dismantlement of nuclear facilities. The EDF company achieved a net trading result of 4.2 billion euros (+47.3%). The agreement signed between EDF and the French government imposes that the electricity tariffs do not increase above the inflation rate from 2006 till 2020. In 2006, the Areva group achieved a turnover of 10.863 billion euros (+7.3%) despite the important financial reserve imposed by the delay in the construction of the EPR reactor in Finland. The trading result has decreased by 26.1% to reach 407 million euros. On the 31. december 2006 the order book reached 25.627 billion euros (+24.6%). (A.C.)

  15. New results from B physics

    International Nuclear Information System (INIS)

    Recent results are reported on exclusive decays of Β mesons. For the first time the decay B- → D*0 l-ν-bar was analyzed with a full reconstruction of the D*0 meson. The branching ratios of all exclusive semileptonic decays B-bar → D(*)l-ν-bar have been measured, using partial reconstruction of the charmed final state. First evidence was obtained for the exclusive semileptonic b → u decay B- → ρ0 l- ν-bar, with a branching ratio BR(B- → ρ0l-ν-bar) = (1.13 ± 0.36 ± 0.27) . 10-3. The hadronic double charm decays B-bar → D(*)-sD(*) have been observed in all possible eight decay modes, with branching ratios between 1% and 3%. By comparing the inclusive and exclusive results to theoretical predictions, values around 270 MeV are obtained for the weak decay constant fDs. B meson decays into χc mesons have been measured inclusively and in the exclusive channel B- → χclK-. (author)

  16. Results from the NOMAD experiment

    CERN Document Server

    Popov, B A

    2000-01-01

    The NOMAD experiment has sought nu /sub mu / implies/implied by nu /sub tau / oscillations by looking for the emergence of tau /sup -/ in events from the CERN SPS neutrino beam. With some improvements in the techniques of analysis in relation to the results published previously and with the inclusion of data from the 1998 run, no evidence for the oscillations has been found, which results in an updated limit on the oscillation probability [P( nu /sub mu / to nu /sub tau /)<0.5* 10/sup -3/ at a 90% C.L.]. The corresponding limit on the oscillation mixing angle is given by sin/sup 2/2 theta /sub mu tau /<1.0*10/sup -3/ for large Delta m/sup 2/. By using a 1% contamination of nu /sub e/ in the neutrino beam, we can also rule out nu /sub e/ implies/implied by nu /sub tau / oscillations and constrain the probability of the relevant transition as P( nu /sub 3/ to nu /sub tau /)<3*10/sup -2/ at a 90% C.L. (sin/sup 2/2Q/sub e tau /<6*10/sup -2/ at large Delta m/sup 2/). (10 refs).

  17. Results of Austin Moore replacement.

    Directory of Open Access Journals (Sweden)

    Jadhav A

    1996-04-01

    Full Text Available Forty cases of Austin Moore Replacement done for transcervical fractures of the femur in patients were reviewed after a period of 12 to 48 months postoperatively (mean 26 mth. 30 cases (75% had mild to severe pain of non-infective origin, starting as early as 6 months postoperatively. This was irrespective of the make, size or position (varus/valgus of the prosthesis. Though the Aufranc and Sweet clinical scoring was satisfactory in 65% cases, radiological evidence of complications like sinking, protrusion, etc. were seen in majority of the cases. Calcar resorption was seen in 34 cases (85% as early as 4 months postoperatively. Results of THR and bipolar replacement done for transcervical fractures in recent literature show 85% pain-free cases at 5 years. We feel that Austin Moore Replacement should be reserved for patients more than 65 years of age and those who are less active or debilitated because of other factors, because of increased acetabular wear with time in the younger individual. This is corroborated by unsatisfactory results in patients less than 65 years of age (p < 0.05.

  18. Toxocariasis Resulting in Seeming Allergy

    Directory of Open Access Journals (Sweden)

    Rosanna Qualizza

    2009-09-01

    Full Text Available Toxocara canis is an intestinal nematode affecting dogs and cats that causes human infestations by ingestion of embryonated eggs excreted in dogs' faeces. Humans are transport hosts, in whom the larvae do not develop to adult worms, but may migrate to various tissues and organs, and survive for several years, giving rise to several clinical symptoms, which include allergy-like presentations. We report three cases presenting as dermatitis, rhinitis, asthma, and conjunctivitis which were diagnosed and unsuccessfully treated as allergy. The correct diagnosis was established after detecting anti-Toxocara antibodies by Western blotting. All clinical symptoms showed improvement after starting treatment with mebendazole and subsequent courses of the antiparasitic drug resulted in full recovery. This suggests the possible role of Toxocara canis in inducing chronic symptoms of allergic type. This is particularly important for asthma, where it has been demonstrated that Toxocara canis infection causes allergic inflammation in the lungs associated with bronchial hyperreactivity. On the other hand, in our patients with asthma and with dermatitis the positive results from allergy tests were a confounding factor in delaying the correct diagnosis, which was finally obtained by the detection of antibodies to Toxocara canis.

  19. Unfavourable results in thumb reconstruction

    Directory of Open Access Journals (Sweden)

    Samir M Kumta

    2013-01-01

    Full Text Available The history of thumb reconstruction parallels the history of hand surgery. The attributes that make the thumb unique, and that the reconstructive surgeon must assess and try to restore when reconstructing a thumb, are: Position, stability, strength, length, motion, sensibility and appearance. Deficiency in any of these attributes can reduce the utility of the reconstructed thumb. A detailed assessment of the patient and his requirements needs to be performed before embarking on a thumb reconstruction. Most unsatisfactory results can be attributed to wrong choice of procedure. Component defects of the thumb are commonly treated by tissue from adjacent fingers, hand or forearm. With refinements in microsurgery, the foot has become a major source of tissue for component replacement in the thumb. Bone lengthening, osteoplastic reconstruction, pollicisation, and toe to hand transfers are the commonest methods of thumb reconstruction. Unfavourable results can be classified as functional and aesthetic. Some are common to all types of procedures. However each type of reconstruction has its own unique set of problems. Meticulous planning and execution is essential to give an aesthetic and functionally useful thumb. Secondary surgeries like tendon transfers, bone grafting, debulking, arthrodesis, may be required to correct deficiencies in the reconstruction. Attention needs to be paid to the donor site as well.

  20. Indication and results of xeromammography

    International Nuclear Information System (INIS)

    The prognosis of breast cancer depends decisively on the time of the diagnosis. So far, survival rates could not be significantly improved. One can expect the best results from an earlier diagnosis. Above all film and Xero-mammography and enforced self examination can contribute to discover carcinoma in an earlier stage. The number of cancer cases that can be discovered this way is low. Film-mammography is preferred in Germany, Xero-mammography in the USA. Both techniques are equal with respect to their diagnostic power, if they are used under optimal technical conditions. The dose load in Xero-mammography is lower compared with mammography with foil-less materal test films. Low-dose film mammographies with and without screen are techniques with an even lower exposure. They do not appear nature in a technological sense. It is not clear whether the high filtration Xero-mammography with negative development technique can yield the same diagnostic results with a radiation exposure of the same order because larger comparative tests are still lacking. (orig.)

  1. APS undulator radiation: First results

    International Nuclear Information System (INIS)

    The first undulator radiation has been extracted from the Advanced Photon Source (APS). The results from the characterization of this radiation are very satisfactory. With the undulator set at a gap of 15.8 mm (K=1.61), harmonics as high as the 17th were observed using a crystal spectrometer. The angular distribution of the third-harmonic radiation was measured, and the source was imaged using a zone plate to determine the particle beam emittance. The horizontal beam emittance was found to be 6.9 ± 1.0 nm-rad, and the vertical emittance coupling was found to be less than 3%. The absolute spectral flux was measured over a wide range of photon energies, and it agrees remarkably well with the theoretical calculations based on the measured undulator magnetic field profile and the measured beam emittance. These results indicate that both the emittance of the electron beam and the undulator magnetic field quality exceed the original specifications

  2. Carbonitride fuel: results of researches

    International Nuclear Information System (INIS)

    Full text: The method of carbothermic conversation of uranium dioxide in a stream of nitrogen was chosen as a fundamental technology of carbonitride fuel manufacturing. The processes of producing UCN in the presence of methane and carbon oxide were investigated at carbothermic conversion of UO2 in nitrogen and nitrogen-hydrogenous atmospheres (P=0.1 MPa, T=1673-2073 K). The possibility for realization of UCN (UN) synthesis on compact UO2 samples in the presence of gas-phase transfer of carbon in in the system is demonstrated. Results are reported from reactor tests of coated particles and uranium-graphite fuel elements based on carbonitride fuel at temperatures of 1250 deg. C and 1500 deg.C to burnups if 18.5 % fima and 18.0 % fima. respectively. The specimens under test have shown high serviceability of the fuel developed (R/B) no more (3.5-6.0)·10-6). The technology of manufacturing carbonitride (nitride) fuel created in NSC KIPT and the results of its tests, including reactor tests, allow us to recommend it for using in nuclear power plants. The performance of future experiments will make it possible to realize the potential of the developed technology for producing nitride fuel base on nitrogen-15 isotope

  3. [Assessment of bariatric surgery results].

    Science.gov (United States)

    Barros, Lívia Moreira; Frota, Natasha Marques; Moreira, Rosa Aparecida Nogueira; de Araújo, Thiago Moura; Caetano, Joselany Áfio

    2015-03-01

    The objective was to evaluate the results of bariatric surgery in patients in the late postoperative period using the Bariatric Analysis and Reporting Outcome System (BAROS). This cross-sectional study was conducted from November 2011 to June 2012 at a hospital in the state of Ceará, Brazil. Data were collected from 92 patients using the BAROS protocol, which analyzes weight loss, improved comorbidities, complications, reoperations and Quality of Life (QoL). Data were analysed using the chi-squared test, Fischer's exact test and the Mann-Whitney test. There was a reduction in the Body Mass Index (47.2±6.8 kg/m2 in the pre-operatory and 31.3±5.0 kg/m2 after surgery, p<0.001). The comorbidity with the highest resolution was arterial hypertension (p<0.001), and QV improved in 94.6% of patients. The main complications were hair loss, incisional hernia and cholelithiasis. The surgery provided satisfactory weight loss and improvements in the comorbidities associated to a better QL. Use of the BAROS protocol allows nurses to plan interventions and maintain the good results. PMID:26098798

  4. Recent HL-1M results

    International Nuclear Information System (INIS)

    The HL-1M tokamak (a modification of HL-1) is a circular cross-section tokamak and has been in operation since OCT 1994. The HL-1M characteristics are as follow: R = 1.02m, a = 0.26m, Bt = 2-2.5T, Ip = 100-320kA and pulse duration ∼ 1 sec. A simple chamber boronization technique was employed in HL-1M. A distinct poloidal asymmetry was observed in the response of the edge density fluctuations at the ohmic discharges, biased pump limiter, and LHCD conditions. Biased pump limiter experiments have seen that biased pump limiter with respect to the walls allows one to control the edge and core plasmas and to measure total particle outflow. Impurity transport using laser blow off injection presents the results in ohmic, H-mode. LHCD experiments were performed with 400KW of 2.45 GHZ wave. The results presented in this paper are concentrated in two aspects. The first is the dependence of LHCD efficiency on power and the second is investigation of confinement improvements by LHCD. (author)

  5. Unfavourable results following reduction mammoplasty

    Directory of Open Access Journals (Sweden)

    Lakshmi Saleem

    2013-01-01

    Full Text Available Breast reduction is a common cosmetic surgical procedure. It aims not only at bringing down the size of the breast proportionate to the build of the individual, but also to overcome the discomfort caused by massive, ill-shaped and hanging breasts. The operative procedure has evolved from mere reduction of breast mass to enhanced aesthetic appeal with a minimum of scar load. The selection of technique needs to be individualised. Bilateral breast reduction is done most often. Haematoma, seroma, fat necrosis, skin loss, nipple loss and unsightly, painful scars can be the complications of any procedure on the breast. These may result from errors in judgement, wrong surgical plan and imprecise execution of the plan. Though a surfeit of studies are available on breast reduction, very few dwell upon its complications. The following article is a distillation of three decades of experience of the senior author (L.S. in reduction mammoplasty. An effort is made to understand the reasons for unfavourable results. To conclude, most complications can be overcome with proper selection of procedure for the given patient and with gentle tissue handling.

  6. MITG test procedure and results

    International Nuclear Information System (INIS)

    Elements and modules for Radioisotope Thermoelectric Generator have been performance tested since the inception of the RTG program. These test articles seldom resembled flight hardware and often lacked adequate diagnostic instrumentation. Because of this, performance problems were not identified in the early stage of program development. The lack of test data in an unexpected area often hampered the development of a problem solution. A procedure for conducting the MITG Test was developed in an effort to obtain data in a systematic, unambiguous manner. This procedure required the development of extensive data acquisition software and test automation. The development of a facility to implement the test procedure, the facility hardware and software requirements, and the results of the MITG testing are the subject of this paper

  7. Research Results and Information Update

    Science.gov (United States)

    2011-01-01

    Research Results Monsoon behavior balanced by glaciers Research Discovers Frequent Mutations of Chromatin Significant Progress in Water Photochemistry Research Structural signature in amorphous alloy formation and plastic deformation The neural basis of Drosophila larval light/darkness preference Important roles of brain-specific carnitine palmitoyltransferase and ceramide metabolism in leptin hypothalamic control of feeding Integrin activation and internalization on soft ECM as a mechanism of induction of stem cell differentiation by ECM elasticity Determination of electron pairing symmetry of iron-based superconductor FeSe Long-Range Topological Order in Metallic Glass Information Update List of Projects Jointly Funded by NSFC and CNRS in 2011 List of Projects Jointly Funded by NSFC and ESRC in 2011 List of Projects Jointly Funded by NSFC and RS in 2011 List of Projects Jointly Funded by NSFC and RSE in 2011 Funding of Major Program Projects in 2010 Funding of Key Program Projects in 2010

  8. Results from KASCADE-Grande

    Energy Technology Data Exchange (ETDEWEB)

    Bertaina, M., E-mail: bertaina@to.infn.it [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Apel, W.D. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Arteaga-Velazquez, J.C. [Universidad Michoacana, Instituto de Fisica y Matematicas, Morelia (Mexico); Bekk, K. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Bluemer, J. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Institut fuer Experimentelle Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Bozdog, H. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Brancus, I.M. [National Institute of Physics and Nuclear Engineering, Bucharest (Romania); Buchholz, P. [Fachbereich Physik, Universitaet Siegen (Germany); Cantoni, E. [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Istituto di Fisica dello Spazio Interplanetario, INAF Torino (Italy); Chiavassa, A. [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Cossavella, F. [Institut fuer Experimentelle Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); and others

    2012-11-11

    The KASCADE-Grande experiment, located at Karlsruhe Institute of Technology (Germany) is a multi-component extensive air-shower experiment devoted to the study of cosmic rays and their interactions at primary energies 10{sup 14}-10{sup 18} eV. Main goals of the experiment are the measurement of the all-particle energy spectrum and mass composition in the 10{sup 16}-10{sup 18} eV range by sampling charged (N{sub ch}) and muon (N{sub {mu}}) components of the air shower. The method to derive the energy spectrum and its uncertainties, as well as the implications of the obtained result, is discussed. An overview of the analyses performed by KASCADE-Grande to derive the mass composition of the measured high-energy comic rays is presented as well.

  9. Results of bentonite grouting experiment

    International Nuclear Information System (INIS)

    The Bentonite grouting, which will not solidify, is mainly expected to reduce the hydraulic conductivity of underground water in the expected damage zone by filling the fractures or cracks, so the evaluation of the degree of hydraulic conductivity, stability and the improvement area becomes important. The study and basic experiments for sealing of the adits have been promoted, up to now, from the aspects of the characteristics and long term stability of candidate materials, and design and construction (Pusch et al., 1987; Tanai and Masuda, 1991). However, in Japan, the application examples of clay type materials for grouting are extremely few and is limited to the construction experience of the national oil underground storage at Kuji (Miyanaga and Ebara, 1993), with the exception of some test cases (Boergesson et al., 1991) from overseas. This report summarize basic characteristics of the clay type material relevant to the hydraulic conductivity, from the result of the clay grouting experiment conducted at the rock site. (author)

  10. Selected recent results from AMANDA

    CERN Document Server

    Andrés, E; Bai, X; Barouch, G; Barwick, S W; Bay, R C; Becker, K H; Bergström, L; Bertrand, D; Bierenbaum, D; Biron, A; Booth, J; Botner, O; Bouchta, A; Boyce, M M; Carius, S; Chen, A; Chirkin, D; Conrad, J; Cooley, J; Costa, C G S; Cowen, D F; Dailing, J; Dalberg, E; De Young, T R; Desiati, P; Dewulf, J P; Doksus, P; Edsjö, J; Ekstrom, P; Erlandsson, B; Feser, T; Gaug, M; Goldschmidt, A; Goobar, A; Gray, L; Haase, H; Hallgren, A; Halzen, F; Hanson, K; Hardtke, R; He, Y D; Hellwig, M; Heukenkamp, H; Hill, G C; Hulth, P O; Hundertmark, S; Jacobsen, J; Kandhadai, V; Karle, A; Kim, J; Koci, B; Köpke, L; Kowalski, M; Leich, H; Leuthold, M; Lindahl, P; Liubarsky, I; Loaiza, P; Lowder, D M; Ludvig, J; Madsen, J; Marciniewski, P; Matis, H S; Mihályi, A; Mikolajski, T; Miller, T C; Minaeva, Y; Miocinovic, P; Mock, P C; Morse, R; Neunhoffer, T; Newcomer, F M; Niessen, P; Nygren, D R; Ogelman, H; Heros, C P D L; Porrata, R; Price, P B; Rawlins, K; Reed, C; Rhode, W; Richards, A; Richter, S; Martino, J R; Romenesko, P; Ross, D; Rubinstein, H; Sander, H G; Scheider, T; Schmidt, T; Schneider, D; Schneider, E; Schwarzl, R; Silvestri, A; Solarz, M; Spiczak, G M; Spiering, C; Starinsky, N; Steele, D; Steffen, P; Stokstad, R G; Streicher, O; Sun, A; Taboada, I; Thollander, L; Thon, T; Tilav, S; Usechak, N; Donckt, M V; Walck, C; Weinheimer, C; Wiebusch, C; Wischnewski, R; Wissing, H; Woschnagg, K; Wu, W; Yodh, G; Young, S

    2001-01-01

    We present a selection of results based on data taken in 1997 with the 302-PMT Antarctic Muon and Neutrino Detector Array-B10 ("AMANDA-B10") array. Atmospheric neutrinos created in the northern hemisphere are observed indirectly through their charged current interactions which produce relativistic, Cherenkov-light-emitting upgoing muons in the South Pole ice cap. The reconstructed angular distribution of these events is in good agreement with expectation and demonstrates the viability of this ice-based device as a neutrino telescope. Studies of nearly vertical upgoing muons limit the available parameter space for WIMP dark matter under the assumption that WIMPS are trapped in the earth's gravitational potential well and annihilate with one another near the earth's center.

  11. Latest results from KLOE-2

    Directory of Open Access Journals (Sweden)

    Bloise Caterina

    2014-01-01

    Full Text Available The KLOE experiment at the Frascati φ–factory recently obtained results on i CPT and Lorentz invariance tests from the study of quantum interference of the neutral kaon pairs; ii precision measurement of the branching fraction, BR(K+ → π+π−π+(γ = 0.05565 ± 0.00031stat ± 0.00025syst, and iii on dark photon searches with the analysis of the e+e− → µµγ final state. We have also studied the transition form factors of the φ meson to the pseudoscalars, π0 and η, that is presented in a separate contribution to this volume.

  12. Results of the dosimetry intercomparison

    International Nuclear Information System (INIS)

    The appropriate way to verify the accuracy of the results of dose reported by the laboratories that offer lend personal dosimetry service is in the periodic participation of round of intercomparison dosimetry, undertaken by laboratories whose standards are trace (Secondary Laboratory). The Laboratory of External Personal Dosimetry of the CNEA-PY has participated in three rounds of intercomparison. The first two were organized in the framework of the Model Project RLA/9/030 RADIOLOGICAL WASTE SECURITY, and the irradiations were carried out in the Laboratory of Regional Calibration of the Center of Nuclear Technology Development, Belo Horizonte-Brazil (1998) and in the National Laboratory of Metrology of the ionizing radiations of the Institute of Radioprotection and Dosimetry, Rio de Janeiro-Brazil (1999). The third was organized by the IAEA and the irradiations were made in the Physikalisch-Technische Bundesanstalt PTB, Braunschweig - Federal Republic of Germany (1999-2000)

  13. The BESS results and prospects

    International Nuclear Information System (INIS)

    The primary purpose of the BESS experiment is to measure the energy spectrum of cosmic-ray antiprotons and to explore the existence of possible antiprotons sources originated from the early universe. A magnet spectrometer equipped with a superconducting solenoid, tracking devices and other detectors for particle identification has been launched to the top of the atmosphere. Since 1993, a total of 1800 antiprotons have been collected by seven balloon flights performed in northern Canada. Although we have observed an energy spectrum characteristic of secondary antiprotons, the result is not conclusive in the energy region below 1 GeV because of insufficient statistics. A much longer observation with a more transparent apparatus is needed to improve the statistics and to extend the measurement to lower energies. We plan to fly a new BESS-Polar spectrometer in Antarctica. (author)

  14. Recent Results from Telescope Array

    CERN Document Server

    Fukushima, M

    2015-01-01

    The Telescope Array (TA) is an experiment to observe Ultra-High Energy Cosmic Rays (UHECRs). TA's recent results, the energy spectrum and anisotropy based on the 6-year surface array data, and the primary composition obtained from the shower maximum Xmax are reported. The spectrum demonstrates a clear dip and cutoff. The shape of the spectrum is well described by the energy loss of extra-galactic protons interacting with the cosmic microwave background (CMB). Above the cutoff, a medium-scale (20 degrees radius) flux enhancement was observed near the Ursa-Major. A chance probability of creating this hotspot from the isotropic flux is 4.0 sigma. The measured Xmax is consistent with the primary being proton or light nuclei for energies 10^18.2 eV - 10^19.2 eV.

  15. Results from ISTC frame work

    Energy Technology Data Exchange (ETDEWEB)

    Fukahori, Tokio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-03-01

    Under International Science Research Center (ISTC) projects, JAERI Nuclear Data Center has been taking a role of collaborator and monitor for following items; (1) Measurement of the Fission Neutron Spectra of the Minor Actinides and Spontaneous Fission of Curium Isotopes (ISTC no. 183: V.I. Khlopin Radium Institute, KRI, St. Petersburg, Russia), (2) Measurement and Analysis of the Basic Nuclear Data for Minor Actinides (ISTC no. 304: Institute of Physics and Power Engineering, IPPE, Obninsk, Russia), and Evaluation of Actinide Nuclear Data (ISTC no. CIS-3: Radiation Physics and Chemistry Problems Institute, RPCPI, Minsk, Belarus). These are related to the Japanese OMEGA Project and expected to supply minor actinide (MA) nuclear data, since Russia has good quality MA samples, experimental technique and nuclear data evaluation experiences. In this report, out-line and some results of above three projects are reviewed. (author)

  16. Framatome announces its 1997 results

    International Nuclear Information System (INIS)

    This press dossier presents the 1997 financial year of Framatome group: turnover and key-numbers, results, sectoral analysis (nuclear engineering (nuclear realizations, fuels, services and equipments); connectors engineering (automotive, electrical, electronic, interconnection and microelectronic industries), industrial equipments). Then, the 1998 objectives are presented with the strategy of the group (Chinese, central and eastern Europe nuclear programs, French-German joint EPR project, services and nuclear fuels, connectors engineering, industrial equipments, manpower, research and development programs). This part is followed by a presentation of some 1997 events and by the text of the press conference from May 18, 1998 which presented the activities of the group, its competences and know-how in the nuclear domain. (J.S.)

  17. TFTR D-T results

    Energy Technology Data Exchange (ETDEWEB)

    Meade, D.M.

    1995-03-01

    Temperatures, densities and confinement of deuterium plasmas confined in tokamaks have been achieved within the last decade that are approaching those required for a D-T reactor. As a result, the unique phenomena present in a D-T reactor plasma can now be studied in the laboratory. Recent experiments on the Tokamak Fusion Test Reactor (TFTR) have been the first magnetic fusion experiments to study plasmas with reactor fuel concentrations of tritium. The injection of {approximately} 20 MW of tritium and 14 MW of deuterium neutral beams into the TFTR produced a plasma with a T/D density ratio of {approximately} 1 and yielded a maximum fusion power of {approximately} 9.2 MW. The fusion power density in the core of the plasma was {approximately} 1.8 MW m{sup {minus}3} approximating that expected in a D-T fusion reactor. A TFTR plasma with T/D density ratio of {approximately} 1 was found to have {approximately} 20% higher energy confinement time than a comparable D plasma, indicating a confinement scaling with average ion mass, A, of {tau}{sub E} {approximately} A{sup 0.6}. The core ion temperature increased from 30 keV to 37 keV due to a 35% improvement of ion thermal conductivity. Using the electron thermal conductivity from a comparable deuterium plasma, about 50% of the electron temperature increase from 9 keV to 10.6 keV can be attributed to electron heating by the alpha particles. The {approx} 5% loss of alpha particles was consistent with classical first orbit loss without anomalous effects. Initial measurements have been made of the confined energetic alphas and the resultant alpha ash density.

  18. Energy 21. Preconditions and results

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In 1988 the Danish government adopted an action plan for the environment and sustainable development. In 1990, the energy aspects of this plan were embodied in Energy 2000 and, in 1993, in Energy 2000 follow-up. The objective is a 20% reduction of CO{sub 2} emissions by the year 2005, compared with the level in 1988. Various measures are therefore being taken as time passes to help achieve this objective. As part of the monitoring of developments in the energy sector, it is necessary to take stock from time to time and to assess the direction in which the sector is moving. The government has therefore drawn up a new energy action plan, Energy 21, both to ensure that the overall objectives in the current plan are actively followed up on and to look ahead at the possibilities for action after the year 2005. The Danish Energy Agency has previously carried out a number of analyses of the technological and behavioural possibilities for reducing energy consumption in the short and the long term, for improving the efficiency of energy supply installations, and for using new and sustainable energy technologies. The results of this work are described in the report Denmark`s Energy Futures. The calculations in the report itself and its appendices. The more detailed assumptions and a description of the methods of analysis etc. are given in Basis for Analysis of Denmark`s Energy Futures. This report contains the assumptions, a description of methods and some of the results of the work on Energy 21. (au)

  19. Overview of the FTU results

    International Nuclear Information System (INIS)

    An overview of the FTU results during the period 2003-2004 is presented. A prototype ITER-relevant LHCD launcher: the Passive Active Multijunction (PAM) has been successfully tested (f=8GHz). High power handling, good coupling properties and current drive effects comparable to those of a conventional launcher have been achieved. The 140 GHz ECRH system has reached its nominal performances: 1.5MW. Effective electron and ion heating (via collisions) have been observed as well as current drive (25 kA at ne0=8x1019m-3). Avoidance and/or suppression of disruptions have been studied with ECRH. IBW studies have shown the importance of recycling in achieving improved confinement plasmas. Results achieved with advanced tokamak (AT) scenarios are presented including repetitive Pellet Enhanced Plasmas (PEP) and electron ITBs. Very peaked density profiles have been achieved with a low speed vertical pellet injector located at about mid-radius on the high field side. Performances are comparable to those achieved with a high-speed horizontal pellet injector. Possible reasons for this behaviour are discussed, among them the presence of an 'MHD' drift once particles reach the q=1 surface. Electron ITBs can be produced at high density in FTU with LHCD. Best performances are achieved with the combined use of LHCD and ECRH. Ions are heated by collisions with ΔTi/Ti up to 40%. A detailed analysis has shown that the ion confinement is comparable to the energy confinement time and that the ITB are not degraded by the electron-ion collisions. A database of the H97 factor has been established with H97 up to 1.6 for the e-ITBs. The peaked density profiles achieved with pellet fuelling allows the linear dependence of τE with ne to be recovered. Particle pinch studies have been made at high densities in full current drive conditions were the Ware pinch plays no role. An anomalous inward pinch exists even at these high densities (ne0=1.3x1020m-3). Parametric dependences of the density

  20. RESULTS OF SUPPLEMENTAL MST STUDIES

    Energy Technology Data Exchange (ETDEWEB)

    Peters, T; David Hobbs, D; Samuel Fink, S

    2006-07-24

    The current design of the Salt Waste Processing Facility (SWPF) includes an auxiliary facility, the Actinide Finishing Facility, which provides a second contact of monosodium titanate (MST) to remove soluble actinides and strontium from waste if needed. This treatment will occur after cesium removal by Caustic-Side Solvent Extraction (CSSX). Although the process changes and safety basis implications have not yet been analyzed, provisions also exist to recover the MST from this operation and return to the initial actinide removal step in the SWPF for an additional (third) contact with fresh waste. A U.S. Department of Energy (DOE) request identified the need to study the following issues involving this application of MST: Determine the effect of organics from the solvent extraction (CSSX) process on radionuclide sorption by MST; Determine the efficiency of re-using MST for multiple contacts; and Examine fissile loading on MST under conditions using a waste containing significantly elevated concentrations of plutonium, uranium, neptunium, and strontium. This report describes the results of three experimental studies conducted to address these needs: (1) Addition of high concentrations of entrained CSSX solvent had no noticeable effect, over a two week period, on the sorption of the actinides and strontium by MST in a direct comparison experiment. (2) Test results show that MST still retains appreciable capacity after being used once. For instance, reused MST--in the presence of entrained solvent--continued to sorb actinides and strontium. (3) A single batch of MST was used to sequentially contact five volumes of a simulant solution containing elevated concentrations of the radionuclides of interest. After the five contacts, we measured the following solution actinide loadings on the MST: plutonium: 0.884 {+-} 0.00539 wt % or (1.02 {+-} 0.0112) E+04 {micro}g/g MST, uranium: 12.1 {+-} 0.786 wt % or (1.40 {+-} 0.104) E+05 {micro}g/g MST, and neptunium: 0.426 {+-} 0

  1. Acoustic communication in crocodilians: information encoding and species specificity of juvenile calls.

    Science.gov (United States)

    Vergne, Amélie L; Aubin, Thierry; Martin, Samuel; Mathevon, Nicolas

    2012-11-01

    In the Crocodylia order, all species are known for their ability to produce sounds in several communication contexts. Though recent experimental studies have brought evidence of the important biological role of young crocodilian calls, especially at hatching time, the juvenile vocal repertoire still needs to be clarified in order to describe thoroughly the crocodilian acoustic communication channel. The goal of this study is to investigate the acoustic features (structure and information coding) in the contact call of juveniles from three different species (Nile crocodile Crocodylus niloticus, Black caiman, Melanosuchus niger and Spectacled caiman, Caiman crocodilus). We have shown that even though substantial structural differences exist between the calls of different species, they do not seem relevant for crocodilians. Indeed, juveniles and adults from the species studied use a similar and non-species-specific way of encoding information, which relies on frequency modulation parameters. Interestingly, using conditioning experiments, we demonstrated that this tolerance in responses to signals of different acoustic structures was unlikely to be related to a lack of discriminatory abilities. This result reinforced the idea that crocodilians have developed adaptations to use sounds efficiently for communication needs. PMID:22820991

  2. Integration process and logistics results

    International Nuclear Information System (INIS)

    The Procurement and Logistics functions have gone through a process of integration since the beginning of integrated management of Asco and Vandellos II up to the present. These are functions that are likely to be designed for delivering a single product to the rest of the organization, defined from a high level of expectations, and that admit simplifications and materialization of synergy's as they are approached from an integrated perspective. The analyzed functions are as follows: Service and Material Purchasing, Warehouse and Material Management, and Documentation and General Services Management. In all case, to accomplish the integration, objectives, procedures and information systems were unified. As for the organization, a decision was made in each case on whether or not to out source. The decisive corporate strategy to integrate, resulting in actions such as moving corporate headquarters to Vandellos II, corporate consolidation, regulation of employment and implementation of the ENDESA Group Economic Information System (SIE) , has shaped this process, which at present can be considered as practically complete. (Author)

  3. Recent results from dispersant testing

    Energy Technology Data Exchange (ETDEWEB)

    Fingas, M.; Fieldhouse, B.; Wang, Z.; Sigouin, L.; Landriault, M. [Environment Canada, Ottawa, ON (Canada). Emergencies Science Div; Mullin, J.V. [Department of the Interior, Herndon, VA (United States). Minerals Management Service

    2000-07-01

    A number of small studies were conducted at Environment Canada on the topic of dispersants and their effectiveness. Dispersant analytical procedures were reviewed and modified when necessary. Testing of new products was also performed along with the testing of long-term stored dispersants. A comparative evaluation of Corexit 9500 and 9527 dispersant formulations showed major modifications to the quantity of dispersed oil, although the Swirling Flask Test did not undergo major modifications. This method used to rely on colorimetric analysis, but was upgraded to gas chromatographic analysis. This move from one method to the other brought on additional changes that had not been considered when the initial change in method was made. Some aspects of the analysis were then improved and corrected to rectify small deficiencies. The authors reported on the results concerning the testing of several new dispersants products. The comparative study between the formulations of Corexit 9500 and 9527 indicated that the effectiveness of 9500 was greater than 9527, but showed no relation to the amount of effectiveness. In terms of statistics, 9527 proved to be more effective than 9500, 25 per cent of the time. The test series conducted on Corexit 9527, stored 20 years in the tank of a truck, varied in effectiveness, toxicity, and colour but did not affect significantly the overall effectiveness of the product in the field. 10 refs., 4 tabs., 2 figs., 1 append.

  4. Overview of recent HERMES results

    Science.gov (United States)

    Marukyan, Hrachya

    2016-02-01

    An overview of more recent and important results from the HERMES experiment are presented in this paper. HERMES collected a wealth of data using the 27.6 GeV polarized HERA lepton beam and various polarized and unpolarized gaseous targets. This unique data set opens the door to the measurements of observables sensitive to the multidimensional structure of the nucleon. Among them are semi-inclusive deep-inelastic scattering measurements of azimuthal modulations sensitive to the transverse momentum distributions, such as the leading- twist Sivers and Collins distributions and distributions sensitive to the convolutions of the twist-2 and twist-3 functions. They all provide an information on the three-momentum-dependent quark distributions. Knowledge on the quark distribution as a function of longitudinal momentum and transverse position in impact-parameter space can be accessed, e.g., through exclusive ω—meson leptoproduction, particularly through the measurement of spin density matrix elements and the measurement of azimuthal modulations on transversely polarized proton target. The measurement of Bose-Einstein correlations of hadron pairs in quasi-real leptoproduction are also presented. The transverse polarization of Λ hyperons measured again in quasi-real leptoproduction regime are presented as well. Finally, the new analysis for the search on pentaquark at HERMES are mentioned.

  5. Theoretical Results on FIEGARCH Processes

    CERN Document Server

    Lopes, Sílvia R C

    2012-01-01

    Here we present a theoretical study on the main properties of FIEGARCH processes. We analyze the conditions for the existence, the invertibility, the stationarity and the ergodicity of these processes. We prove that, if $\\{X_t\\}_{t \\in \\mathds{Z}}$ is a FIEGARCH$(p,d,q)$ process then, under mild conditions, $\\{\\ln(X_t^2)\\}_{t \\in \\mathds{Z}}$ is an ARFIMA$(q,d,0)$ process. The convergence order for the polynomial coefficients that describes the volatility is presented and results related to the spectral representation and to the covariance structure of both processes $\\{\\ln(X_t^2)\\}_{t \\in \\mathds{Z}}$ and $\\{\\ln(\\sigma_t^2)\\}_{t \\in \\mathds{Z}}$ are also discussed. Expressions for the kurtosis and the asymmetry measures for any stationary FIEGARCH$(p,d,q)$ process are also derived. The $h$-step ahead forecast for the processes $\\{X_t\\}_{t \\in \\mathds{Z}}$, $\\{\\ln(\\sigma_t^2)\\}_{t \\in \\mathds{Z}}$ and $\\{\\ln(X_t^2)\\}_{t \\in \\mathds{Z}}$ are given with their respective mean square error forecast. The work also...

  6. Evaluating the RELM Test Results

    Directory of Open Access Journals (Sweden)

    Michael K. Sachs

    2012-01-01

    Full Text Available We consider implications of the Regional Earthquake Likelihood Models (RELM test results with regard to earthquake forecasting. Prospective forecasts were solicited for M≥4.95 earthquakes in California during the period 2006–2010. During this period 31 earthquakes occurred in the test region with M≥4.95. We consider five forecasts that were submitted for the test. We compare the forecasts utilizing forecast verification methodology developed in the atmospheric sciences, specifically for tornadoes. We utilize a “skill score” based on the forecast scores λfi of occurrence of the test earthquakes. A perfect forecast would have λfi=1, and a random (no skill forecast would have λfi=2.86×10-3. The best forecasts (largest value of λfi for the 31 earthquakes had values of λfi=1.24×10-1 to λfi=5.49×10-3. The best mean forecast for all earthquakes was λ̅f=2.84×10-2. The best forecasts are about an order of magnitude better than random forecasts. We discuss the earthquakes, the forecasts, and alternative methods of evaluation of the performance of RELM forecasts. We also discuss the relative merits of alarm-based versus probability-based forecasts.

  7. ALOHA Cabled Observatory: Early Results

    Science.gov (United States)

    Howe, B. M.; Lukas, R.; Duennebier, F. K.

    2011-12-01

    The ALOHA Cabled Observatory (ACO) was installed 6 June 2011, extending power, network communications and timing to a seafloor node and instruments at 4726 m water depth 100 km north of Oahu. The system was installed using ROV Jason operated from the R/V Kilo Moana. Station ALOHA is the field site of the Hawaii Ocean Time-series (HOT) program that has investigated temporal dynamics in biology, physics, and chemistry since 1988. HOT conducts near monthly ship-based sampling and makes continuous observations from moored instruments to document and study climate and ecosystem variability over semi-diurnal to decadal time scales. The cabled observatory system will provide the infrastructure for continuous, interactive ocean sampling enabling new measurements as well as a new mode of ocean observing that integrates ship and cabled observations. The ACO is a prototypical example of a deep observatory system that uses a retired first-generation fiber-optic telecommunications cable. Sensors provide live video, sound from local and distant sources, and measure currents, pressure, temperature, and salinity. Preliminary results will be presented and discussed.

  8. Experimental results of helicon sources

    Institute of Scientific and Technical Information of China (English)

    MIAO Ting-Ting; SHANG Yong; LIU Zhan-Wen; ZHAO Hong-Wei; SUN Liang-Ting; ZHANG Xue-Zhen; ZHAO Huan-Yu; WANG Hui; MA Bao-Hua; LI Xi-Xia; ZHU Yu-Hua; FENG Yu-Cheng; LI Jing-Yu

    2009-01-01

    Helicon plasma sources are known as efficient generators of uniform and high density plasma.A helicon plasma source was developed for the investigation of plasma stripping and plasma lenses at the Institute of Modern Physics, CAS.In this paper, the characteristics of helicon plasma have been studied by using a Langmuir four-probe and a high plasma density up to 3.9×10~(13)/cm~3 has been achieved with the Nagoya type Ⅲ antenna.In the experiment, several important phenomena were found: (1) for a given magnetic induction intensity, the plasma density became greater with the increase of RF power; (2) helicon mode appeared at RF power between 300 W and 400 W; (3) the plasma density gradually tended to saturation as the RF power increased to the higher power; (4) a higher plasma density can be obtained by a good match between the RF power and the magnetic field distribution.The key issue is how to optimize the matching between the RF power and the magnetic field.Moreover, some tests on the extraction of ion beams were performed, and preliminary results are given.The problems which existed in the helicon ion source will be discussed and the increase in beam density will be expected by extraction system optimum.

  9. Results from the NEXT prototypes

    CERN Document Server

    Oliveira, C A B

    2013-01-01

    NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this paper we present the latest results from both prototypes. We report the improvement in terms of light collection (?~3x?) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1 % (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8x8 SiPMs.

  10. Results from the NEXT prototypes

    Science.gov (United States)

    Oliveira, C. A. B.; NEXT Collaboration

    2013-10-01

    NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this paper we present the latest results from both prototypes. We report the improvement in terms of light collection (~ 3×) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1 % (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8 × 8 SiPMs.

  11. Results of the 2009 elections

    CERN Multimedia

    Association du personnel

    The elections to renew the Staff Council for the 2010-2011 period are now behind us and we are very pleased to have had at least as many candidates as posts in five of the six electoral colleges. Furthermore, the average rate of participation of 56.8% in these elections is a very good result compared to previous years. We thank the candidates who have committed themselves to actively defending the interests of the staff, and all our members have shown, by voting, their full support of the candidates in their college and Department. This newly-elected Staff Council (see its composition on the following page) will therefore be truly representative of all the sectors and professions of the Organization, which will be a major asset when the Staff Association representatives begin discussions with the Management and Member States in 2010 on the key issues of the five-yearly review and the measures to be taken to absorb the deficit of our Pension Fund. Armed with this vote of confidence, we know that we can count o...

  12. EUPORIAS: plans and preliminary results

    Science.gov (United States)

    Buontempo, C.

    2013-12-01

    Recent advances in our understanding and ability to forecast climate variability have meant that skilful predictions are beginning to be routinely made on seasonal to decadal (s2d) timescales. Such forecasts have the potential to be of great value to a wide range of decision-making, where outcomes are strongly influenced by variations in the climate. In 2012 the European Commission funded EUPORIAS, a four year long project to develop prototype end-to-end climate impact prediction services operating on a seasonal to decadal timescale, and assess their value in informing decision-making. EUPORIAS commenced on 1 November 2012, coordinated by the UK Met Office leading a consortium of 24 organisations representing world-class European climate research and climate service centres, expertise in impacts assessments and seasonal predictions, two United Nations agencies, specialists in new media, and commercial companies in climate-vulnerable sectors such as energy, water and tourism. The poster describes the setup of the project, its main outcome and some of the very preliminary results.

  13. The PROUST radar: First results

    Science.gov (United States)

    Bertin, F.; Cremieu, A.; Glass, M.; Massebeuf, M.; Ney, R.; Petitdidier, M.

    1987-01-01

    The stratosphere-troposphere radar PROUST (prototype de radar pour l'observation en UHF de la stratosphère et troposphère) is located at Saint Santin, France (44°39'N; 2°12'E), a place devoted to the French ionospheric incoherent scatter facility whose frequency is 935 MHz. The use of this equipment as stratosphere-troposphere radar has required important modifications of the transmitting and receiving systems, which have been planned in several steps. In a first one, the radar works in a bistatic mode with a 600-m height resolution, allowing measurements in the altitude range 3-10 km. The first results presented here have been obtained with this configuration during two campaigns. In the first one, observations can be interpreted in terms of lee waves; in the second, an intense turbulence activity associated with a high-altitude temperature inversion is observed. In this last case, the oscillations observed in the vertical wind are consistent with trapped gravity waves generated by a decaying turbulence in a stratified medium. In a second step, now operating, a 30-m height resolution has been implemented and will allow a better understanding of these phenomena. In its final version, the PROUST radar will operate in a monostatic mode that will permit to extend the observations up to 15 km.

  14. LSND results and their implications

    Energy Technology Data Exchange (ETDEWEB)

    Caldwell, D.O. [California Univ., Santa Barbara, CA (United States). Dept. of Physics

    1996-11-01

    The combined 1993, 1994, and 1995 data from the LSND experiment shows a statistically compelling excess of events of the type expected for {nu}{sub {mu}} {yields}{nu}{sub e} neutrino oscillations. An electron between 36 and 60 MeV is identified by Cherenkov and scintillation light from {nu}{sub e}p{yields}e{sup +}n, and if a {gamma} is tightly constrained to be correlated with it from np{yields}d{gamma} (2.2 MeV), then 22 such events are observed, but only 4.6{+-}0.6 are expected from background. The probability that this is a fluctuation is <10{sup -7}. If subsequent analysis shows a similar effect from the independent channel {nu}{sub {mu}}{yields}{nu}{sub e}, then this would imply a neutrino mass difference which would contribute significantly to the dark matter of the universe. Explaining also the solar and atmospheric neutrino deficits results in a neutrino mass pattern which gives a cold + hot dark matter which fits the structure of the universe on all scales and requires a critical density universe and an universe age compatible with that of the oldest stars. This mass pattern involves a sterile neutrino, evidence for which may come from the need for it in producing heavy elements by supernovae and for blowing off the supernova mantle. (author) 3 figs., 18 refs.

  15. Clinical results of virtual colonoscopy

    International Nuclear Information System (INIS)

    With increasing emphasis among the medical community on the early diagnosis and staging of colorectal cancer, interest has grown in CT colonography as a developing technique to challenge existing methods such as the barium enema and conventional colonoscopy. First introduced in 1994, CT colonography has experienced dramatic improvements in both hardware and software capabilities, resulting in shorter scanning times, greater user-friendliness and promising performance statistics. The recent development in multi-slice CT scanners has meant the ability to scan patients in a single breath hold, while innovations in image reconstruction and manipulation have optimised and yet greatly simplified study interpretation. Recent imaging protocols that use IV contrast to stage known or suspected colorectal cancer have been described. Current interest has focused on improving patient acceptance of the technique through the development of faecal tagging agents to avoid full bowel catharsis. This review summarises the development of CT colonography to date, evaluates its applications and performance in the detection and screening of colorectal polyps and looks at future directions of this exciting technique. (orig.)

  16. Preliminary results of ANAIS-25

    CERN Document Server

    Amaré, J; Cuesta, C; García, E; Ginestra, C; Martínez, M; Oliván, M A; Ortigoza, Y; de Solórzano, A Ortiz; Pobes, C; Puimedón, J; Sarsa, M L; Villar, P; Villar, J A

    2013-01-01

    The ANAIS (Annual Modulation with NaI(Tl) Scintillators) experiment aims at the confirmation of the DAMA/LIBRA signal using the same target and technique at the Canfranc Underground Laboratory. 250 kg of ultrapure NaI(Tl) crystals will be used as a target, divided into 20 modules, each coupled to two photomultipliers. Two NaI(Tl) crystals of 12.5 kg each, grown by Alpha Spectra from a powder having a potassium level under the limit of our analytical techniques, form the ANAIS-25 set-up. The background contributions are being carefully studied and preliminary results are presented: their natural potassium content in the bulk has been quantified, as well as the uranium and thorium radioactive chains presence in the bulk through the discrimination of the corresponding alpha events by PSA, and due to the fast commissioning, the contribution from cosmogenic activated isotopes is clearly identified and their decay observed along the first months of data taking. Following the procedures established with ANAIS-0 and ...

  17. Results from bar pp colliders

    International Nuclear Information System (INIS)

    Recent results bar pp colliders are presented. From elastic scattering experiments at the Tevatron, an average value of σtot = 72.1±2 mb is reported, along with a new measurement of ρ = 0.13 ± 0.7. New measurements of jet direct photon and high pt W and Z production are compared to more precise, higher order predictions from perturbative QCD. Recently available data on the W mass and width give combined values for MW = 80.14±0.27 GeV/c2, and Γ(W) =2. 14 ± 0.08 GeV. From electroweak radiative corrections and MW, one finds Mtop = 130±40 GeV/c2, with a 95% C.L. upper limit at 210 GeV/c2. Current limits on Mtop are presented, along with a review of the prospects for top discovery. From jet data there is no evidence of quark substructure down to the distance scale of 1.4 x 10-17 cm, nor is there evidence for supersymmetry or heavy gauge bosons at bar pp colliders, allowing lower limits on MW, > 520 GeV/c2 and MZ 412 GeV/c2. 66 refs., 26 figs

  18. Recent QCD results from ATLAS

    CERN Document Server

    Pleskot, Vojtech; The ATLAS collaboration

    2016-01-01

    ATLAS has has performed several measurements of phenomena connected to QCD at soft scales or at the transition to the hard regime. These include the measurements at different centre-of-mass energies in Run-1 and Run-2 of the elastic, inelastic and total cross sections in pp collisions, the properties of minimum bias and the underlying event interactions, particle production and their correlations, as well as of diffractive and exclusive events. These results are sensitive to non-perturbative models of soft QCD. Jet and photon production cross sections have been measured differentially for inclusive and multi-object final states at 7, 8 and 13 TeV pp collisions with the ATLAS detector and are compared to expectations based on next-to-leading order QCD calculations as well as Monte Carlo simulations. Further studies of jet production properties include the measurements of jet properties, and the determination of the strong coupling constant alpha_s. These measurements provide direct probes of short-distance phy...

  19. Excellent results for CERN runners

    CERN Multimedia

    Hervé Cornet, CERN Running club

    2015-01-01

    As in previous years, thirty or so runners from CERN took part in the Tour du Canton de Genève (more information here, in French only).   The men’s team that won the corporate challenge prize in the Tour du Canton de Genève: (standing, left to right) Patrick Villeton, Phil Hebda, Mika Vesterinen, Steffen Doebert; (sitting, left to right) Guillaume Michet and Camille Ruiz-Llamas. The Laboratory was represented in the corporate challenge by five teams, one of which came first in the men’s category. CERN’s other teams also put in good performances, with one finishing fourth in the men's category and another seventh in the mixed category. Runners from CERN did well in the individual classifications too. All the results can be found here. The Maxi Race team: (left to right) Sebastien Ponce, Alain Cauphy, Klaus Hanke and Christophe Biot. Elsewhere, four CERN runners competed in the finals of the Annecy Maxi Race (site in French only...

  20. 78 FR 44961 - Endangered Species; Marine Mammals; Receipt of Applications for Permit

    Science.gov (United States)

    2013-07-25

    ... Departments and Agencies of January 21, 2009--Transparency and Open Government (74 FR 4685; January 26, 2009... (Podocnemis unifilis) Spotted pond turtle (Geoclemys hamiltonii) Nile crocodile (Crocodylus niloticus) Saltwater crocodile (Crocodylus porosus) Caiman (Caiman crocodilus) Indian python (Python molurus...

  1. CALICE results and future plans

    International Nuclear Information System (INIS)

    The CALICE Collaboration is carrying out R for a highly granular calorimeter system, optimised for particle flow calorimetry at a future linear collider. Starting in 2006, a complete calorimeter chain (ECAL, HCAL and tail catcher) has been tested in muon, electron and hadron beams at CERN and Fermilab. Two electromagnetic calorimeters were tested, both based on tungsten absorber - one using ∼10000 1x1 cm2 silicon diode pads as the sensitive medium, and the other using small (1x4 cm2) scintillator strips. The hadron calorimeter had an iron-scintillator sandwich structure, using ∼10000 scintillator tiles read out using silicon photomultipliers (SiPMs). We report here on the analysis of shower data, and the comparison of the results with GEANT4 simulations. Muons are used to calibrate all the detectors, and the study of the response to electrons is a crucial first step in the understanding of all the detectors. One of the main objectives of the analysis is the study of the hadron response, since this can be more difficulty to simulate reliably. Amongst the topics discussed will be the energy response of the system to hadrons, and the use of techniques of software compensation to improve the energy resolution. The high granularity of the calorimeters permit the comparison between data and simulations in unprecedented resolution; for example, individual tracks within the shower can be reconstructed, the start of the shower can be identified with high precision, and the longitudinal and transverse distributions of energy studied. These measurements provide interesting new ways of assessing the accuracy of the various physics models available in GEANT4. We also use the data to test features of the showers which are important for particle flow algorithms. Much of the current work is now directed towards second generation prototypes in which more realistic mechanical designs and readout systems are employed. In 2010-11 a cubic prototype of a digital HCAL based on RPCs

  2. Recent Results on Singularity Strengths

    Science.gov (United States)

    Nolan, Brien

    2002-12-01

    In this contribution, we review some recent results on strengths of singularities. In a space-time (M,g), let γ[τ0, 0) → M be an incomplete, inextendible causal geodesic, affinely parametrised by τ, tangent ěc k. Let Jτ1 :=set of Jacobi fields along γ, orthogonal to γ and vanishing at time τ1 ≥ τ0 i.e. ěc ξ ∈ J{τ 1 } iff D2ξa = -Rbcdakbkdξc, gabξakb = 0, and ěc ξ (τ 1 ) = 0. Vτ1(τ) := volume element defined by full set of independent elements of Jτ1 (2-dim for null geodesies, 3-dim for time-like); Vτ1 := ∥Vτ1∥. Definition (Tipler 1977): γ terminates in a gravitationally strong singularity if for all 0 > τ1 ≥ τ0, lim infτ→0- Vτ1(τ) = 0. γ... gravitationally weak ... lim infτ→0- Vτ1(τ) > 0. The interpretation is that at a strong singularity, an extended body, e.g. a gravitational wave detector, is crushed to zero volume by the singularity. Tipler's definition does not take account of the possibility that (i) V → ∞ or (ii) V → finite, non-zero value, but with infinite stretching/crushing in orthogonal directions ('spaghettifying singularity'). Extended definition (Nolan 1999): strong if either V → 0,∞ or if for every τ1, there is an element ěc ξ of Jτ1 satisfying ||ěc ξ || -> 0. Otherwise weak. (Ori 2000): singularity is 'deformationally strong' if either (i) it is Tipler-strong or (ii) for every τ1, there is an element ěc ξ of Jτ1 satisfying ||ěc ξ || -> ∞ . Otherwise, deformationally weak...

  3. Corral Monitoring System assessment results

    International Nuclear Information System (INIS)

    This report describes the results of a functional and operational assessment of the Corral Monitoring Systems (CMS), which was designed to detect and document accountable items entering or leaving a monitored site. Its development was motivated by the possibility that multiple sites in the nuclear weapons states of the former Soviet Union might be opened to such monitoring under the provisions of the Strategic Arms Reduction Treaty. The assessment was performed at three levels. One level evaluated how well the planned approach addressed the target application, and which involved tracking sensitive items moving into and around a site being monitored as part of an international treaty or other agreement. The second level examined the overall design and development approach, while the third focused on individual subsystems within the total package. Unfortunately, the system was delivered as disassembled parts and pieces, with very poor documentation. Thus, the assessment was based on fragmentary operating data coupled with an analysis of what documents were provided with the system. The system design seemed to be a reasonable match to the requirements of the target application; however, important questions about site manning and top level administrative control were left unanswered. Four weaknesses in the overall design and development approach were detected: (1) poor configuration control and management, (2) inadequate adherence to a well defined architectural standard, (3) no apparent provision for improving top level error tolerance, and (4) weaknesses in the object oriented programming approach. The individual subsystems were found to offer few features or capabilities that were new or unique, even at the conceptual level. The CMS might possibly have offered a unique combination of features, but this level of integration was never realized, and it had no unique capabilities that could be readily extracted for use in another system

  4. Overview of ASDEX Upgrade results

    Science.gov (United States)

    Zohm, H.; Angioni, C.; Arslanbekov, R.; Atanasiu, C.; Becker, G.; Becker, W.; Behler, K.; Behringer, K.; Bergmann, A.; Bilato, R.; Bobkov, V.; Bolshukhin, D.; Bolzonella, T.; Borrass, K.; Brambilla, M.; Braun, F.; Buhler, A.; Carlson, A.; Conway, G. D.; Coster, D. P.; Drube, R.; Dux, R.; Egorov, S.; Eich, T.; Engelhardt, K.; Fahrbach, H.-U.; Fantz, U.; Faugel, H.; Finken, K. H.; Foley, M.; Franzen, P.; Fuchs, J. C.; Gafert, J.; Fournier, K. B.; Gantenbein, G.; Gehre, O.; Geier, A.; Gernhardt, J.; Goodman, T.; Gruber, O.; Gude, A.; Günter, S.; Haas, G.; Hartmann, D.; Heger, B.; Heinemann, B.; Herrmann, A.; Hobirk, J.; Hofmeister, F.; Hohenöcker, H.; Horton, L. D.; Igochine, V.; Jacchia, A.; Jakobi, M.; Jenko, F.; Kallenbach, A.; Kardaun, O.; Kaufmann, M.; Keller, A.; Kendl, A.; Kim, J.-W.; Kirov, K.; Kochergov, R.; Kollotzek, H.; Kraus, W.; Krieger, K.; Kurki-Suonio, T.; Kurzan, B.; Lang, P. T.; Lasnier, C.; Lauber, P.; Laux, M.; Leonard, A. W.; Leuterer, F.; Lohs, A.; Lorenz, A.; Lorenzini, R.; Maggi, C.; Maier, H.; Mank, K.; Manso, M.-E.; Mantica, P.; Maraschek, M.; Martines, E.; Mast, K.-F.; McCarthy, P.; Meisel, D.; Meister, H.; Meo, F.; Merkel, P.; Merkel, R.; Merkl, D.; Mertens, V.; Monaco, F.; Mück, A.; Müller, H. W.; Münich, M.; Murmann, H.; Na, Y.-S.; Neu, G.; Neu, R.; Neuhauser, J.; Nguyen, F.; Nishijima, D.; Nishimura, Y.; Noterdaeme, J.-M.; Nunes, I.; Pautasso, G.; Peeters, A. G.; Pereverzev, G.; Pinches, S. D.; Poli, E.; Proschek, M.; Pugno, R.; Quigley, E.; Raupp, G.; Reich, M.; Ribeiro, T.; Riedl, R.; Rohde, V.; Roth, J.; Ryter, F.; Saarelma, S.; Sandmann, W.; Savtchkov, A.; Sauter, O.; Schade, S.; Schilling, H.-B.; Schneider, W.; Schramm, G.; Schwarz, E.; Schweinzer, J.; Schweizer, S.; Scott, B. D.; Seidel, U.; Serra, F.; Sesnic, S.; Sihler, C.; Silva, A.; Sips, A. C. C.; Speth, E.; Stäbler, A.; Steuer, K.-H.; Stober, J.; Streibl, B.; Strumberger, E.; Suttrop, W.; Tabasso, A.; Tanga, A.; Tardini, G.; Tichmann, C.; Treutterer, W.; Troppmann, M.; Urano, H.; Varela, P.; Vollmer, O.; Wagner, D.; Wenzel, U.; Wesner, F.; Westerhof, E.; Wolf, R.; Wolfrum, E.; Würsching, E.; Yoon, S.-W.; Yu, Q.; Zasche, D.; Zehetbauer, T.; Zehrfeld, H.-P.

    2003-12-01

    Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model for the temperature gradients. Coupling this to particle diffusion explains most of the observed behaviour of the density profiles, in particular, the finding that strong central heating reduces the tendency for density profile peaking. Internal transport barriers (ITBs) with electron and ion temperatures in excess of 20 keV (but not simultaneously) have been achieved. By shaping the plasma, a regime with small type II edge localized modes (ELMs) has been established. Here, the maximum power deposited on the target plates was greatly reduced at constant average power. Also, an increase of the ELM frequency by injection of shallow pellets was demonstrated. ELM free operation is possible in the quiescent H-mode regime previously found in DIII-D which has also been established on ASDEX Upgrade. Regarding stability, a regime with benign neoclassical tearing modes (NTMs) was found. During electron cyclotron current drive (ECCD) stabilization of NTMs, bgrN could be increased well above the usual onset level without a reappearance of the NTM. Electron cyclotron resonance heating and ECCD have also been used to control the sawtooth repetition frequency at a moderate fraction of the total heating power. The inner wall of the ASDEX Upgrade vessel has increasingly been covered with tungsten without causing detrimental effects on the plasma performance. Regarding scenario integration, a scenario with a large fraction of noninductively driven current (geq50%), but without ITB has been established. It combines improved confinement (tgrE/tgrITER98 ap 1.2) and stability (bgrN les 3.5) at high Greenwald fraction (ne/nGW ap 0.85) in steady state and with type II ELMy edge and would offer the possibility for long pulses with high fusion power at reduced current in ITER.

  5. Corral Monitoring System assessment results

    Energy Technology Data Exchange (ETDEWEB)

    Filby, E.E.; Haskel, K.J.

    1998-03-01

    This report describes the results of a functional and operational assessment of the Corral Monitoring Systems (CMS), which was designed to detect and document accountable items entering or leaving a monitored site. Its development was motivated by the possibility that multiple sites in the nuclear weapons states of the former Soviet Union might be opened to such monitoring under the provisions of the Strategic Arms Reduction Treaty. The assessment was performed at three levels. One level evaluated how well the planned approach addressed the target application, and which involved tracking sensitive items moving into and around a site being monitored as part of an international treaty or other agreement. The second level examined the overall design and development approach, while the third focused on individual subsystems within the total package. Unfortunately, the system was delivered as disassembled parts and pieces, with very poor documentation. Thus, the assessment was based on fragmentary operating data coupled with an analysis of what documents were provided with the system. The system design seemed to be a reasonable match to the requirements of the target application; however, important questions about site manning and top level administrative control were left unanswered. Four weaknesses in the overall design and development approach were detected: (1) poor configuration control and management, (2) inadequate adherence to a well defined architectural standard, (3) no apparent provision for improving top level error tolerance, and (4) weaknesses in the object oriented programming approach. The individual subsystems were found to offer few features or capabilities that were new or unique, even at the conceptual level. The CMS might possibly have offered a unique combination of features, but this level of integration was never realized, and it had no unique capabilities that could be readily extracted for use in another system.

  6. Mobile evaporator corrosion test results

    Energy Technology Data Exchange (ETDEWEB)

    Rozeveld, A.; Chamberlain, D.B.

    1997-05-01

    Laboratory corrosion tests were conducted on eight candidates to select a durable and cost-effective alloy for use in mobile evaporators to process radioactive waste solutions. Based on an extensive literature survey of corrosion data, three stainless steel alloys (304L, 316L, AL-6XN), four nickel-based alloys (825, 625, 690, G-30), and titanium were selected for testing. The corrosion tests included vapor phase, liquid junction (interface), liquid immersion, and crevice corrosion tests on plain and welded samples of candidate materials. Tests were conducted at 80{degrees}C for 45 days in two different test solutions: a nitric acid solution. to simulate evaporator conditions during the processing of the cesium ion-exchange eluant and a highly alkaline sodium hydroxide solution to simulate the composition of Tank 241-AW-101 during evaporation. All of the alloys exhibited excellent corrosion resistance in the alkaline test solution. Corrosion rates were very low and localized corrosion was not observed. Results from the nitric acid tests showed that only 316L stainless steel did not meet our performance criteria. The 316L welded interface and crevice specimens had rates of 22.2 mpy and 21.8 mpy, respectively, which exceeds the maximum corrosion rate of 20 mpy. The other welded samples had about the same corrosion resistance as the plain samples. None of the welded samples showed preferential weld or heat-affected zone (HAZ) attack. Vapor corrosion was negligible for all alloys. All of the alloys except 316L exhibited either {open_quotes}satisfactory{close_quotes} (2-20 mpy) or {open_quotes}excellent{close_quotes} (<2 mpy) corrosion resistance as defined by National Association of Corrosion Engineers. However, many of the alloys experienced intergranular corrosion in the nitric acid test solution, which could indicate a susceptibility to stress corrosion cracking (SCC) in this environment.

  7. Results of nonendoscopic endonasal dacryocystorhinostomy

    Directory of Open Access Journals (Sweden)

    Preechawai P

    2012-08-01

    Full Text Available Passorn PreechawaiDepartment of Ophthalmology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, ThailandBackground: Surgical scarring on the face and disrupted anatomy in the medial canthal area following external dacryocystorhinostomy (DCR can be avoided by an endonasal approach. This study examined the outcome of direct visualization endonasal DCR, performed by young surgeons and residents.Methods: A retrospective case series of 75 consecutive endonasal DCRs performed under direct visualization from July 2002 to July 2004 were reviewed. Surgery was performed by surgeons and residents who had received no special training in the procedure. Full success was defined as no symptoms of tearing after surgery and anatomical patency with fluorescein flow on nasal endoscopy or patency to lacrimal syringing. Partial success was defined as a tearing decrease compared with prior to surgery and with anatomical patency, and failure was defined as no significant improvement in persistent tearing. The average follow-up duration was 26.83 ± 16.26 (range 6–55 months.Results: Seventy-five DCRs were performed on 63 patients (four male, 59 female of mean age 49.44 ± 16.63 (range 21–85 years. The surgery was successful in 54/75 eyes (72%, 37/54 eyes (68.5%, and 30/42 eyes (71.4% at 6, 12, and 24 months, respectively. Partial success was achieved in 13/75 (17.3%, 9/54 (16.7%, and 9/42 (21.4%, and the failure rates were 10.7%, 14.8%, and 7.1% at 6, 12, and 24 months, respectively. The overall functional success with this technique was 74.7% and the overall anatomical patency was 92.0%. There were no serious complications arising from the surgery; three minor complications were documented, ie, an incorrectly placed silicone tube in the lower canaliculus, tube prolapse, and postoperative bleeding which needed nasal packing and eventually a developed retention cyst in the nasal cavity.Conclusion: Endonasal DCR under direct visualization is a

  8. First half 2010 financial results

    International Nuclear Information System (INIS)

    The Supervisory Board of the AREVA group presents in this document the financial statements submitted by the Executive Board for the semester ended June 30, 2010. Areva backlog continued to rise in the first half of the year. Areva's revenue is up by more than 6% for the first six months to more than 4 billion euros. The performance of Areva's recurring business continues to improve, reflecting optimization plans deployed in all of the group's business units. However, Areva booked in the first half a non cash reversible accounting adjustment on the value of certain mining assets, following the publication in the second quarter of new prospective data on uranium prices, as well as an additional provision on the EPR project in Finland. Cumulated provisions on OL3 rose to 2.6 billion euros. Capitalizing on lessons learned from this project, Areva has reduced strongly the engineering hours needed for the completion of the nuclear steam supply system for the Taishan 1 and 2 EPR reactors. Net income attributable to owners of the parent rose to 843 million euros, including the 1.3 billion euro gain on the disposal of the Transmission and Distribution business, or 23.82 euros per share. For the full year of 2010, the group anticipates a substantial revenue and backlog growth, an increase in operating income excluding particular items, a negative operating income, and a strong increase in net income attributable to owners of the parent, which includes the capital gain on disposal of the Transmission and Distribution business. First half 2010 financial results in brief: - Backlog of euro 44.1 bn: +euro 1.2 bn compared with June 30, 2009; - Revenue of euro 4.158 bn: +6.4% compared with first half 2009; - Operating income excl. particular items: euro 213 m, for a 5.1% margin; - Operating income: -euro 485 m; - Net income group share: euro 843 m including the euro 1.27 bn gain on the sale of the T and D business; - Earnings per share: euro 23.82; - Net debt of euro 5.152 bn

  9. FIRST RESULTS FROM OEDOTENSIOMETRIC TESTS

    Directory of Open Access Journals (Sweden)

    Luigi Cavazza

    2008-09-01

    Full Text Available An oedotensiometer was used to examine to examine the behaviour of sieved sample of a swelling soil (a vertisol as well as of the same soils treated with solution of Na+ + Ca2+ to simulate the soil changes from excessive irrigation with brackish water. The oedometer test consisted in an infiltration of water from below through a ceramic porous plate at a feeding pressure of +10 cm water and successive drainage under a depression mostly of -112 cm of water. The rate of water entry as well as the swelling rate of the sample were monitored. Preliminary considerations regards the domains in which the shrinkage curve of a swelling soil is subdivided and make hypothesis on the swelling process expected when the infiltration from below of the sample is applied. The results support the hypothesis that when the water pressure is applied some water enters rather rapidly in the larger structural pores and is followed later by the swelling in the smaller pores, responsible for the basic domain. This first conclusion demonstrates that the assumption of a simultaneous movement of solid and liquid components in the sample, which is the base of most theoretical developments for swelling soils, cannot be accepted for the tested samples. Some cases with water clogging on the sample surface confirm a late final swelling of the soil and permitted to evaluate the hydraulic conductivity of the swollen soil. These manifestations are more evident in sodicated soils. The loading of the sample reduces the swelling of the sample and seems to reduce its permeability. The reduction of the feeding water pressure further reduces the sample swelling. The draining process from saturated soil sample shows that most of the process occurs in the large pores of the structural domain. This gives the possibility to evaluate the water diffusivity coefficient for the structural domain of the sample. In draining the soil with the highest sodication there was a variation of soil volume

  10. 1999 Annual report -- Generating results

    International Nuclear Information System (INIS)

    results and a consolidated financial statement, with the usual supporting information attached

  11. An overview of KSTAR results

    International Nuclear Information System (INIS)

    Since the first H-mode discharges in 2010, the duration of the H-mode state has been extended and a significantly wider operational window of plasma parameters has been attained. Using a second neutral beam (NB) source and improved tuning of equilibrium configuration with real-time plasma control, a stored energy of Wtot ∼ 450 kJ has been achieved with a corresponding energy confinement time of τE ∼ 163 ms. Recent discharges, produced in the fall of 2012, have reached plasma βN up to 2.9 and surpassed the n = 1 ideal no-wall stability limit computed for H-mode pressure profiles, which is one of the key threshold parameters defining advanced tokamak operation. Typical H-mode discharges were operated with a plasma current of 600 kA at a toroidal magnetic field BT = 2 T. L–H transitions were obtained with 0.8–3.0 MW of NB injection power in both single- and double-null configurations, with H-mode durations up to ∼15 s at 600 kA of plasma current. The measured power threshold as a function of line-averaged density showed a roll-over with a minimum value of ∼0.8 MW at n-bar e∼2×1019 m-3. Several edge-localized mode (ELM) control techniques during H-mode were examined with successful results including resonant magnetic perturbation, supersonic molecular beam injection (SMBI), vertical jogging and electron cyclotron current drive injection into the pedestal region. We observed various ELM responses, i.e. suppression or mitigation, depending on the relative phase of in-vessel control coil currents. In particular, with the 90° phase of the n = 1 RMP as the most resonant configuration, a complete suppression of type-I ELMs was demonstrated. In addition, fast vertical jogging of the plasma column was also observed to be effective in ELM pace-making. SMBI-mitigated ELMs, a state of mitigated ELMs, were sustained for a few tens of ELM periods. A simple cellular automata (‘sand-pile’) model predicted that shallow deposition near the pedestal foot induced

  12. SMOS first results over land

    Science.gov (United States)

    Kerr, Yann; Waldteufel, Philippe; Cabot, François; Richaume, Philippe; Jacquette, Elsa; Bitar, Ahmad Al; Mamhoodi, Ali; Delwart, Steven; Wigneron, Jean-Pierre

    2010-05-01

    retrieve soil moisture over fairly large and thus inhomogeneous areas. The retrieval is carried out at nodes of a fixed Earth surface grid. To achieve this purpose, after checking input data quality and ingesting auxiliary data, the retrieval process per se can be initiated. This cannot be done blindly as the direct model will be dependent upon surface characteristics. It is thus necessary to first assess what is the dominant land use of a node. For this, an average weighing function (MEAN_WEF) which takes into account the "antenna"pattern is run over the high resolution land use map to assess the dominant cover type. This is used to drive the decision tree which, step by step, selects the type of model to be used as per surface conditions. All this being said and done the retrieval procedure starts if all the conditions are satisfied, ideally to retrieve 3 parameters over the dominant class (the so-called rich retrieval). If the algorithm does not converge satisfactorily, a new trial is made with less floating parameters ("poorer retrieval") until either results are satisfactory or the algorithm is considered to fail. The retrieval algorithm also delivers whenever possible a dielectric constant parameter (using the-so called cardioid approach). Finally, once the retrieval converged, it is possible to compute the brightness temperature at a given fixed angle (42.5°) using the selected forward models applied to the set of parameters obtained at the end of the retrieval process. So the output product of the level 2 soil moisture algorithm should be node position, soil moisture, dielectric constants, computed brightness temperature at 42.5°, flags and quality indices. During the presentation we will describe in more details the algorithm and accompanying work in particular decision tree principle and characteristics, the auxiliary data used and the special and "exotic"cases. We will also be more explicit on the algorithm validation and verification through the data

  13. Trends in counts of manatees Trichechus manatus latirostris from 1987 to 2006 in waters of Sarasota County, Florida, USA

    OpenAIRE

    Scolardi, Kerri M.; Schwacke, Lori H.; Koelsch, Jessica K.; Reynolds III, John E.; Kessenich, Teresa J.; Sprinkel, Jay M.; Gannon, Janet G.

    2009-01-01

    To demonstrate the utility of distributional surveys for assessing relative abundance and trends in counts for a discrete area of coastline, aerial survey data from Sarasota County, Florida, USA, were analyzed for the years 1987 to 2006. The study area was divided into 3 regions: the Sarasota Bay Region (SBR; N = 353 surveys), Lemon Bay (N = 368), and the Myakka River (N = 209). Manatee counts varied significantly across seasons (p < 0.0001) for all 3 regions. Manatees within Sarasota County ...

  14. Managing Endangered Species Within the Use-Preservation Paradox: The Florida Manatee ( Trichechus manatus latirostris) as a Tourism Attraction

    Science.gov (United States)

    Sorice, Michael G.; Shafer, C. Scott; Ditton, Robert B.

    2006-01-01

    A significant challenge to wildlife managers in tourism settings is to provide visitors with opportunities to observe rare and endangered wildlife while simultaneously protecting the target species from deleterious impacts. Nearly 100,000 people annually visit Crystal River, Florida, USA to observe and swim with the Florida manatee, an endangered species. This research aimed to investigate and describe human-manatee interactions in a tourism context, to understand the salient issues related to such interactions as identified by stakeholders, and to recommend a course of action to address multiple interests in the planning and management of human-manatee interactions. Five issues were identified by all stakeholder groups: water quality, harassment, density and crowding, education, and enforcement. Currently, the U.S. Fish and Wildlife Service, which is responsible for manatee management, does not have mechanisms in place to manage the tourism component of the manatee encounter. Although a regulatory approach can be taken, a better approach would be to create an organization of tour operators to establish “best practices” that reflect the goal of the managing agency to enhance manatee protection (and thus ensure their livelihood) and to enhance the visitor experience.

  15. Debromoaplysiatoxin in Lyngbya-dominated mats on manatees (Trichechus manatus latirostris) in the Florida King's Bay ecosystem.

    Science.gov (United States)

    Harr, Kendal E; Szabo, Nancy J; Cichra, Mary; Phlips, Edward J

    2008-08-01

    Proliferation of the potentially toxic cyanobacterium, Lyngbya, in Florida lakes and rivers has raised concerns about ecosystem and human health. Debromoaplysiatoxin (DAT) was measured in concentrations up to 6.31 microg/g wet weight lyngbyatoxin A equivalents (WWLAE) in Lyngbya-dominated mats collected from natural substrates. DAT was also detected (up to 1.19 microg/g WWLAE) in Lyngbya-dominated mats collected from manatee dorsa. Ulcerative dermatitis found on manatees is associated with, but has not been proven to be caused by DAT. PMID:18585400

  16. Results, Results, Results?

    Science.gov (United States)

    Wallace, Dale

    2000-01-01

    Given the amount of time, energy, and money devoted to provincial achievement exams in Canada, it is disturbing that Alberta students and teachers feel so pressured and that the exams do not accurately reflect what students know. Research shows that intelligence has an (untested) emotional component. (MLH)

  17. Florida Red Tides, Manatee Brevetoxicosis, and Lung Models

    OpenAIRE

    Kirkpatrick, Barbara; Colbert, Debborah E.; Dalpra, Dana; Newton, Elizabeth A. C.; Gaspard, Joseph; Littlefield, Brandi; Manire, Charles

    2004-01-01

    In 1996, 149 Florida manatees, Trichechus manatus latirostris, died along the southwest coast of Florida. Necropsy pathology results of these animals indicated that brevetoxin from the Florida red tide, Karenia brevis, caused their death. A red tide bloom had been previously documented in the area where these animals stranded. The necropsy data suggested the mortality occurred from chronic inhalation and/or ingestion. Inhalation theories include high doses of brevetoxin deposited/stored in th...

  18. Existence results for random fractional differential equations

    OpenAIRE

    Vasile Lupulescu; Donal O'Regan; Ghaus ur Rahman

    2014-01-01

    In this paper, an existence result for a random fractional differential equation is established under a Carathéodory condition. Existence results for extremal random solutions are also proved. Finally, an existence and uniqueness result is given

  19. Experimental results on radiative kaon decays

    International Nuclear Information System (INIS)

    This paper reviews the current status of experimental results on radiative kaon decays. Several experiments at BNL, CERN and FNAL have recently or will soon complete data collection; as a result, there are several new results

  20. Ranking XPaths for extracting search result records

    NARCIS (Netherlands)

    Trieschnigg, Dolf; Tjin-Kam-Jet, Kien; Hiemstra, Djoerd

    2012-01-01

    Extracting search result records (SRRs) from webpages is useful for building an aggregated search engine which combines search results from a variety of search engines. Most automatic approaches to search result extraction are not portable: the complete process has to be rerun on a new search result

  1. Ranking XPaths for extracting search result records

    OpenAIRE

    Trieschnigg, Dolf; Tjin-Kam-Jet, Kien; Hiemstra, Djoerd

    2012-01-01

    Extracting search result records (SRRs) from webpages is useful for building an aggregated search engine which combines search results from a variety of search engines. Most automatic approaches to search result extraction are not portable: the complete process has to be rerun on a new search result page. In this paper we describe an algorithm to automatically determine XPath expressions to extract SRRs from webpages. Based on a single search result page, an XPath expression is determined whi...

  2. Presidential General Election Results - 2012 - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer portrays Presidential general election results for 2012, with results reported by county or county equivalent, for the 50 United States and the...

  3. Accuracy of results with NASTRAN modal synthesis

    Science.gov (United States)

    Herting, D. N.

    1978-01-01

    A new method for component mode synthesis was developed for installation in NASTRAN level 17.5. Results obtained from the new method are presented, and these results are compared with existing modal synthesis methods.

  4. NEW RESULTS ON ESTIMATES FOR SINGULAR VALUES

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    New results are provided to estimate matrix singular values in terms of partial absolute deleted row sums and column sums. Illustrative examples are presented to show comparisons with results in literature.

  5. Results of Evolution Supervised by Genetic Algorithms

    CERN Document Server

    Jäntschi, Lorentz; Bălan, Mugur C; Sestraş, Radu E

    2010-01-01

    A series of results of evolution supervised by genetic algorithms with interest to agricultural and horticultural fields are reviewed. New obtained original results from the use of genetic algorithms on structure-activity relationships are reported.

  6. Counting results for sparse pseudorandom hypergraphs I

    OpenAIRE

    Kohayakawa, Yoshiharu; Mota, Guilherme O.; Schacht, Mathias; Taraz, Anusch

    2016-01-01

    We establish a so-called counting lemma that allows embeddings of certain linear uniform hypergraphs into sparse pseudorandom hypergraphs, generalizing a result for graphs [Embedding graphs with bounded degree in sparse pseudorandom graphs, Israel J. Math. 139 (2004), 93-137]. Applications of our result are presented in the companion paper [Counting results for sparse pseudorandom hypergraphs II].

  7. Clinical Trial Results: A Clinical Trial Bazaar!

    OpenAIRE

    Fojo, Antonio Tito; Bates, Susan E.

    2014-01-01

    The Oncologist’s Clinical Trial Results section welcomes both positive and negative results in an effort to share information, speed discovery, and inform the field. Clinical Trial Results submissions have shown how succinctly the salient features of a submission can be presented, with more in-depth information to be found online.

  8. Monthly results of measurements April 1987

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  9. Recent Results from the ZEUS Experiment

    CERN Document Server

    Smith, W H; Abramowicz, H; Adamczyk, L; Adamus, M; Adler, V; Aghuzumtsyan, G; Antonioli, P; Antonov, A; Arneodo, M; Bailey, D S; Bamberger, A; Barakbaev, A N; Barbagli, G; Barbi, M; Bari, G; Barreiro, F; Bartsch, D; Basile, M; Bauerdick, L A T; Behrens, U; Bell, M; Bellagamba, L; Benen, A; Bertolin, A; Bhadra, S; Bloch, I; Bodmann, B; Bold, T; Boos, E G; Borras, K; Boscherini, D; Brock, I; Brook, N H; Brugnera, R; Brümmer, N; Bruni, A; Bruni, G; Bussey, P J; Butterworth, J M; Bylsma, B; Caldwell, A; Capua, M; Cara Romeo, G; Carli, T; Carlin, R; Catterall, C D; Chekanov, S; Chiochia, V; Chwastowski, J; Ciborowski, J; Ciesielski, R; Cifarelli, Luisa; Cindolo, F; Cloth, P; Cole, J E; Collins-Tooth, C; Contin, A; Cooper-Sarkar, A M; Coppola, N; Cormack, C; Corradi, M; Corriveau, F; Cottrell, A; D'Agostini, Giulio; Dal Corso, F; Danilov, P; Dannheim, D; De Pasquale, S; Dementiev, R K; Derrick, M; Deshpande, Abhay A; Devenish, R C E; Dhawan, S; Dolgoshein, B A; Doyle, A T; Drews, G; Durkin, L S; Dusini, S; Eisenberg, Y; Ermolov, P F; Eskreys, Andrzej; Ferrando, J; Ferrero, M I; Figiel, J; Filges, D; Foster, B; Foudas, C; Fourletov, S; Fourletova, J; Fricke, U; Fusayasu, T; Gabareen, A; Gallo, E; Garfagnini, A; Geiser, A; Genta, C; Gialas, I; Giusti, P; Gladilin, L K; Gladkov, D; Glasman, C; Gliga, S; Goers, S; Golubkov, Yu A; Goncalo, R; González, O; Göttlicher, P; Grabowska-Bold, I; Grijpink, S; Grzelak, G; Gutsche, O; Gwenlan, C; Haas, T; Hain, W; Hall-Wilton, R; Hamatsu, R; Hamilton, J; Hanlon, S; Hart, J C; Hartmann, H; Hartner, G; Hartner, G F; Heaphy, E A; Heath, G P; Heath, H F; Helbich, M; Heusch, C A; Hilger, E; Hillert, S; Hirose, T; Hochman, D; Holm, U; Iacobucci, G; Iga, Y; Inuzuka, M; Irrgang, P; Jakob, H P; Jones, T W; Kagawa, S; Kahle, B; Kaji, H; Kananov, S; Kappes, A; Kataoka, Y; Yamazaki, M; Katkov, I I; Katz, U F; Kcira, D; Khein, L A; Kim, J Y; Kim, Y K; Kind, O; Kisielewska, D; Kitamura, S; Klimek, K; Koffeman, E; Kohno, T; Kooijman, P; Koop, T; Korzhav, I A; Kotanski, A; Kötz, U; Kowal, A M; Kowal, M; Kowalski, H; Kowalski, T; Krakauer, D; Kramberger, G; Kreisel, A; Krumnack, N; Kuze, M; Kuzmin, V A; Labarga, L; Labes, H; Lainesse, J; Lammers, S; Lee, J H; Lee, S W; Lelas, D; Levchenko, B B; Levman, G M; Levy, A; Li, L; Lightwood, M S; Lim, H; Lim, I T; Limentani, S; Ling, T Y; Liu, X; Löhr, B; Lohrmann, E; Loizides, J H; Long, K R; Longhin, A; Lukina, O Yu; Lupi, A; Luzniak, P; Maddox, E; Magill, S; Mankel, R; Margotti, A; Marini, G; Martin, J F; Mastroberardino, A; Matsuzawa, K; Mattingly, M C K; McCubbin, N A; Mellado, B; Melzer-Pellmann, I A; Menary, S R; Metlica, F; Meyer, U; Milite, M; Mirea, A; Monaco, V; Montanari, A; Moritz, M; Musgrave, B; Nagano, K; Nania, R; Nguyen, C N; Nigro, A; Ning, Y; Nishimura, T; Notz, D; Nowak, R J; Oh, B Y; Olkiewicz, K; Pac, M Y; Padhi, S; Paganis, S; Palmonari, F; Parenti, A; Park, I H; Patel, S; Paul, E; Pavel, N; Pawlak, J M; Pelfer, P G; Pellegrino, A; Pesci, A; Petrucci, M C; Piotrzkowski, K; Plucinsky, P P; Pokrovskiy, N S; Polini, A; Posocco, M; Proskuryakov, A S; Przybycien, M B; Rautenberg, J; Raval, A; Reeder, D D; Ren, Z; Renner, R; Repond, J; Riveline, U; Karshon, M; Robins, S; Rodrigues, E; Rosin, M; Rurua, L; Ruspa, M; Sacchi, R; Salehi, H; Sartorelli, G; Savin, A A; Saxon, D H; Schagen, S; Schioppa, M; Schlenstedt, S; Schmidke, W B; Schneekloth, U; Sciulli, F; Scott, J; Selonke, F; Shcheglova, L M; Skillicorn, I O; Slominski, W; Soares, M; Solano, A; Son, D; Sosnovtsev, V V; Stairs, D G; Stanco, L; Standage, J; Stifutkin, A; Stoesslein, U; Stonjek, S; Stopa, P; Straub, P B; Suchkov, S; Susinno, G; Suszycki, L; Sutton, M R; Sztuk, J; Szuba, D; Szuba, J; Tandler, J; Tapper, A D; Tapper, R J; Tassi, E; Tawara, T; Terron, J; Tiecke, H G; Tokushuku, K; Tsurugai, T; Turcato, M; Tymieniecka, T; Ukleja, A; Ukleja, J; Vázquez, M; Velthuis, J J; Vlasov, N N; Voss, K C; Walczak, R; Walsh, R; Wang, M; Weber, A; Wessoleck, H; West, B J; Whitmore, J J; Wick, K; Wiggers, L; Wills, H H; Wing, M; Wolf, G; Yamada, S; Yamashita, T; Yoshida, R; Youngman, C; Zawiejski, L; Zeuner, W; Zhautykov, B O; Zichichi, A; Ziegler, A; Zotkin, S A; De Wolf, E; Del Peso, J

    2004-01-01

    A summary of recent results from ZEUS is presented. New ZEUS results from HERA-1 data include Structure Functions, QCD fits, analysis of hadronic final states, precision measurements of alpha_s, production of heavy flavor mesons and baryons and studies of diffraction. Results from the new HERA-II running include the measurement of the cross section for polarized charged current events and charm events tagged with the new ZEUS vertex detector.

  10. Monthly results of measurements, August 1987

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface waters, underground water, drinking water, sewage water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites, sediments. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  11. Setting Priorities Personal Values, Organizational Results

    CERN Document Server

    (CCL), Center for Creative Leadership

    2011-01-01

    To be a successful leader, you need to get results. To get results, you need to set priorities. This book can help you do a better job of setting priorities, recognizing the personal values that motivate your decision making, the probable trade-offs and consequences of your decisions, and the importance of aligning your priorities with your organization's expectations. In this way you can successfully meet organizational objectives and consistently produce results.

  12. Monthly results of measurements, february 1987

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobylsk accident

  13. Monthly results of measurements, november 1986

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  14. Monthly results of measurements, April 1989

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  15. Monthly results of measurements, January 1988

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around, nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  16. Towards structured representation of academic search results

    OpenAIRE

    Mirylenka, Daniil

    2015-01-01

    Searching for scientific publications is a tedious task, especially when exploring an unfamiliar domain. Typical scholarly search engines produce lengthy unstructured result lists, which are difficult to comprehend, interpret and browse.An informative visual summary could convey useful information about the returned results as a whole, without the need to sift through individual publications.The first contribution of this thesis is a novel method of representing academic search results wit...

  17. Monthly results of measurements, May 1987

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface waters, underground water, drinking water, sewage water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites, sediments. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  18. Monthly results of measurements, November 1989

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  19. Monthly results of measurements, Nov 1988

    International Nuclear Information System (INIS)

    This report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident

  20. Monthly results of measurements, May 1986

    International Nuclear Information System (INIS)

    This May 1986 report of the SCPRI exposes an interpretation of the principal results concerning the routine monitoring of environmental radioactivity in France: atmospheric dusts, rainwater, surface water, underground water, sewage water, drinking water, food chain (milk, vegetables, fishes), sea water around nuclear plant sites and other sites. The activities of various radioisotopes are presented in tables. This report exposes also the results of special radiation measurements resulting from the Chernobyl accident. More than 5000 samples are analyzed