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Sample records for carey eretmochelys imbricata

  1. Preferencias en la anidación de tortugas carey (Eretmochelys imbricata y baulas (Dermochelys coriacea en el Refugio Nacional de Vida Silvestre Gandoca Manzanillo, Limón, Costa Rica

    Directory of Open Access Journals (Sweden)

    Lilliana Piedra-Castro

    2015-09-01

    Full Text Available El Caribe costarricense es importante como sitio de alimentación, copulación, anidación y desove de las tortugas marinas, por lo que el presente trabajo pretendió actualizar el patrón de anidación en las tortugas marinas Dermochelys coriacea y Eretmochelys imbricata en el sector Gandoca, del Refugio Nacional de Vida Silvestre Gandoca Manzanillo, Limón, Costa Rica, para proponer medidas de manejo. Se realizaron recorridos nocturnos entre las 8:00 p. m. y 4:00 a. m., la playa se dividió en cinco sectores, en estos se realizaron observaciones directas y de rastros, de las tortugas que elaboraron el nido, entre febrero y agosto del 2011 y 2012. Se registraron tres especies de tortugas marinas, Dermochelys coriacea, Eretmochelys imbricata y Chelonia mydas. La anidación de tortugas baula tuvo su punto máximo entre marzo y julio; por su parte, las carey, entre mayo y junio (2011, y junio hasta agosto en el 2012. Se observó preferencia en la posición de la playa utilizada para construir sus nidos; la baula utiliza principalmente la parte media, mientras que la carey utilizó mayormente la parte baja para anidar (t = 17.2525. Se observó que la baula utilizó frecuentemente el sector C; sin embargo, no se encontraron diferencias en el uso de los sectores. Se concluye que ambas especies tienen preferencias en la selección de la zona de playa en que anidan; la carey en la parte baja cerca de la línea de costa y la baula en la parte media. Además, las tortugas baula utilizan indistintamente los diferentes sectores de la playa estudiada.

  2. Final critical habitat for the Hawksbill sea turtle (Eretmochelys imbricata)

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — To provide the user with a general idea of areas where final critical habitat for hawksbill sea turtle (Eretmochelys imbricata) based on the description provided in...

  3. Population Study of the Hawksbill Turtle Eretmochelys imbricata (Cheloniidae in the Southern Pacific region of Colombia

    Directory of Open Access Journals (Sweden)

    Alexander Tobón-López

    2014-06-01

    Full Text Available The objective of this research was to determine biological and ecological population characteristics of the hawksbill turtle (Eretmochelys imbricata found in the southern Colombian Pacific department of Cauca. Morphometric measurements were recorded, the health status of individuals was reviewed, and blood samples were taken for a biochemistry assessment. During the seven months of the investigation, 25 hawksbill turtles were caught (16 different individuals on the reefs of Gorgona Natural National Park. Forty-six percent of the total numbers of turtles assessed were recaptured during the study period. While no obvious health problems were noted, most animals possessed epibionts and filamentous algae covering the carapace, some parts of the limbs, as well as on their neck. Curved carapace length (CCL showed the highest proportion of individuals were between 37 and 45 cm. Sixteen individuals captured in Gorgona Natural National Park were compared with 11 individuals captured in the coastal zone of the department of Cauca. Using the Mann-Whitney U test, a significant difference in CCL was found between these two groups; the animals from Gorgona National Park were larger than those present on the coast of the mainland (Z = -2.59, p = 0.007. Uric acid concentrations were found to be higher than previously referenced values. ESTUDIO POBLACIONAL DE LA TORTUGA CAREY Eretmochelys imbricata (CHELONIIDAE EN EL PACÍFICO SUR DE COLOMBIAEl objetivo de esta investigación fue conocer aspectos poblacionales, biológicos y ecológicos de las tortugas carey (Eretmochelys imbricata presentes en el Pacífico sur de Colombia (Departamento del Cauca, para esto se tomó información de morfometría, se revisó el estado de salud de los individuos y  se tomaron muestras de sangre para valoración de química sanguínea. Durante siete meses de muestreo se capturaron 25 tortugas carey (16 individuos diferentes en los arrecifes del Parque Nacional Natural Gorgona

  4. Diving behavior and movements of juvenile hawksbill turtles Eretmochelys imbricata on a Caribbean coral reef

    Science.gov (United States)

    Blumenthal, J. M.; Austin, T. J.; Bothwell, J. B.; Broderick, A. C.; Ebanks-Petrie, G.; Olynik, J. R.; Orr, M. F.; Solomon, J. L.; Witt, M. J.; Godley, B. J.

    2009-03-01

    As historically abundant spongivores, hawksbill turtles Eretmochelys imbricata likely played a key ecological role on coral reefs. However, coral reefs are now experiencing global declines and many hawksbill populations are critically reduced. For endangered species, tracking movement has been recognized as fundamental to management. Since movements in marine vertebrates encompass three dimensions, evaluation of diving behavior and range is required to characterize marine turtle habitat. In this study, habitat use of hawksbill turtles on a Caribbean coral reef was elucidated by quantifying diel depth utilization and movements in relation to the boundaries of marine protected areas. Time depth recorders (TDRs) and ultrasonic tags were deployed on 21 Cayman Islands hawksbills, ranging in size from 26.4 to 58.4 cm straight carapace length. Study animals displayed pronounced diel patterns of diurnal activity and nocturnal resting, where diurnal dives were significantly shorter, deeper, and more active. Mean diurnal dive depth (±SD) was 8 ± 5 m, range 2-20 m, mean nocturnal dive depth was 5 ± 5 m, range 1-14 m, and maximum diurnal dive depth was 43 ± 27 m, range 7-91 m. Larger individuals performed significantly longer dives. Body mass was significantly correlated with mean dive depth for nocturnal but not diurnal dives. However, maximum diurnal dive depth was significantly correlated with body mass, suggesting partitioning of vertical habitat by size. Thus, variable dive capacity may reduce intraspecific competition and provide resistance to degradation in shallow habitats. Larger hawksbills may also represent important predators on deep reefs, creating a broad ecological footprint over a range of depths.

  5. Recent sightings of the Hawksbill turtle Eretmochelys imbricata (Linnaeus, 1757 on the coast of Northern Andhra Pradesh, India

    Directory of Open Access Journals (Sweden)

    K.L.N Murthy

    2012-07-01

    Full Text Available The coast of Northern Andhra Pradesh has predominantly rocky and sandy shores with sporadic nesting sites of olive ridley turtles Lepidochelys olivacea. However, there have been rare sightings of hawksbill turtles Eretmochelys imbricata along this coast in the past couple of decades and their nesting is seldom observed. Carcasses of two adult hawksbill turtles were observed on 29/12/2010 and 07/03/2011 along the coast of Visakhapatnam in Northern Andhra Pradesh, India. These sightings of dead hawksbill turtles along this coast come recently after a long gap of several years and emphasize on the need to carry out surveys in the area for devising effective long term conservation management strategies.

  6. Genetic variation, multiple paternity, and measures of reproductive success in the critically endangered hawksbill turtle (Eretmochelys imbricata).

    Science.gov (United States)

    González-Garza, Blanca Idalia; Stow, Adam; Sánchez-Teyer, Lorenzo Felipe; Zapata-Pérez, Omar

    2015-12-01

    The Yucatán Peninsula in Mexico contains some of the largest breeding groups of the globally distributed and critically endangered hawksbill turtle (Eretmochelys imbricata). An improved understanding of the breeding system of this species and how its genetic variation is structured among nesting areas is required before the threats to its survival can be properly evaluated. Here, we genotype 1195 hatchlings and 41 nesting females at 12 microsatellite loci to assess levels of multiple paternity, genetic variation and whether individual levels of homozygosity are associated with reproductive success. Of the 50 clutches analyzed, only 6% have multiple paternity. The distribution of pairwise relatedness among nesting localities (rookeries) was not random with elevated within-rookery relatedness, and declining relatedness with geographic distance indicating some natal philopatry. Although there was no strong evidence that particular rookeries had lost allelic variation via drift, younger turtles had significantly lower levels of genetic variation than older turtles, suggesting some loss of genetic variation. At present there is no indication that levels of genetic variation are associated with measures of reproductive success such as clutch size, hatching success, and frequency of infertile eggs. PMID:26811751

  7. Comparative cytotoxicity and genotoxicity of soluble and particulate hexavalent chromium in human and hawksbill sea turtle (Eretmochelys imbricata) skin cells.

    Science.gov (United States)

    Young, Jamie L; Wise, Sandra S; Xie, Hong; Zhu, Cairong; Fukuda, Tomokazu; Wise, John Pierce

    2015-12-01

    Chromium is both a global marine pollutant and a known human health hazard. In this study, we compare the cytotoxicity and genotoxicity of both soluble and particulate chromate in human and hawksbill sea turtle (Eretmochelys imbricata) skin fibroblasts. Our data show that both soluble and particulate Cr(VI) induce concentration-dependent increases in cytotoxicity, genotoxicity, and intracellular Cr ion concentrations in both human and hawksbill sea turtle fibroblasts. Based on administered concentration, particulate and soluble Cr(VI) were more cytotoxic and clastogenic to human cells than sea turtle cells. When the analysis was based on the intracellular concentration of Cr, the data showed that the response of both species was similar. The one exception was the cytotoxicity of intracellular Cr ions from soluble Cr(VI), which caused more cytotoxicity in sea turtle cells (LC50=271μM) than that of human cells (LC50=471μM), but its clastogenicity was similar between the two species. Thus, adjusting for differences in uptake indicated that the explanation for the difference in potency was mostly due to uptake rather than differently affected mechanisms. Overall these data indicate that sea turtles may be a useful sentinel for human health responses to marine pollution. PMID:26440299

  8. Unravelling the microbiome of eggs of the endangered sea turtle Eretmochelys imbricata identifies bacteria with activity against the emerging pathogen Fusarium falciforme.

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    Jullie M Sarmiento-Ramírez

    Full Text Available Habitat bioaugmentation and introduction of protective microbiota have been proposed as potential conservation strategies to rescue endangered mammals and amphibians from emerging diseases. For both strategies, insight into the microbiomes of the endangered species and their habitats is essential. Here, we sampled nests of the endangered sea turtle species Eretmochelys imbricata that were infected with the fungal pathogen Fusarium falciforme. Metagenomic analysis of the bacterial communities associated with the shells of the sea turtle eggs revealed approximately 16,664 operational taxonomic units, with Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes as the most dominant phyla. Subsequent isolation of Actinobacteria from the eggshells led to the identification of several genera (Streptomyces, Amycolaptosis, Micromomospora Plantactinospora and Solwaraspora that inhibit hyphal growth of the pathogen F. falciforme. These bacterial genera constitute a first set of microbial indicators to evaluate the potential role of microbiota in conservation of endangered sea turtle species.

  9. Temperatura de incubação e razão sexual em filhotes recém-eclodidos da tartaruga marinha Eretmochelys imbricata (Linnaeus, 1766 no município do Ipojuca, Pernambuco, Brasil

    Directory of Open Access Journals (Sweden)

    Thyara N. Simões

    2014-01-01

    Full Text Available O desenvolvimento do sexo em tartarugas marinhas é determinado pela temperatura de incubação dos ovos (TSD - Temperature-dependent Sex Determination. Para a espécie Eretmochelys imbricata, pouco se sabe a respeito da proporção sexual das desovas que ocorrem no litoral sul de Pernambuco. Diante disso, o objetivo desse estudo é analisar a relação entre o desenvolvimento sexual e a temperatura de incubação de ninhos de tartarugas-de-pente, depositados na Praia de Merepe, município do Ipojuca, Pernambuco. Os dados de temperatura foram coletados em nove ninhos, durante os meses de janeiro a junho de 2013, com auxílio de registradores de temperatura do tipo Data loggers (Modelo Onset Computer, UA-001-08. As médias registradas para os ninhos amostrados em relação ao período de incubação e temperatura foram de 54 dias e de 31,68ºC. Com base nesses resultados, os ninhos apresentaram uma forte tendência para o desenvolvimento de fêmeas, sendo a razão sexual, estimada por meio de análises histológicas, de 86,53% para fêmeas. Portanto, a Praia de Merepe possui temperaturas que propiciam uma maior diferenciação de neonatos fêmea. Entretanto, estudos mais detalhados devem ser realizados com a intenção de verificar se esses mesmos resultados podem ser obtidos para todo o litoral ipojucano.

  10. Congratulations to Carey King

    Science.gov (United States)

    Hall, Charles A. S.

    2012-03-01

    I first came across Carey King when, out of the blue, he invited me to a special session of the annual meeting of the American Association for the Advancement of Science (the largest and most prestigious US scientific meeting) where he was developing a special session on energy return on investment (EROI). At that meeting and since, I have found Carey to be a refreshing new colleague, extremely intelligent, very knowledgeable about many diverse aspects of energy and other things, able to take criticism and to dish it out, and very ambitious, which is mostly a good thing. He is becoming a leader in thinking about EROI and its implications, and I am delighted to see him honored by Environmental Research Letters. This is important because in the US, there is little insight about energy or, especially, its potential physical limitations except when gas prices increase. There is also little awareness of the very strong historical connection in both the US and the world between increased affluence and increased use of energy, especially petroleum. It is not understood by all that many of the economic problems we have now (such as the budgetary problems faced by most of our State governments, pension plans and universities) have substantial origin in the fact that oil and other energy production no longer increase reliably year after year, as they once did (Murphy and Hall 2011). Many economists have argued in the past that energy is not important because it constituted only 5 per cent or so of GDP, or because they believe that market forces and innovations will substitute for any shortage (e.g. Barnett and Morse 1963, Passell et al 1972, Solow 1974, Denison 1989). One problem with that view is that if you remove that five per cent the economy comes to a dead stop, as Cuba found out in 1989 when Russia removed its oil subsidy. Additionally if that five per cent goes up to 10 or 15 per cent, as it did in the early 1980s, and again in 2008, recession steps in (Murphy and

  11. Environ: E00520 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available E00520 Eretmochelys imbricata carapace Eretmochelyos carapax Crude drug Eretmochely...s imbricata [TAX:27787] Cheloniidae Eretmochelys imbricata carapace (dried) Crude drugs [BR:br08305] Animals Reptiles E00520 Eretmochelys imbricata carapace ...

  12. Samuel Warren Carey - Commemorative memoir

    OpenAIRE

    Scalera, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia

    2003-01-01

    Emeritus Professor Samuel Warren Carey passed away on 20 March 2002 at age 90. He was born at Campbelltown, New South Wales on 1st November 1911, and attended school at the Canterbury Boys High School. Carey’s father was a printer, who became a public lecturer when he arrived in Australia. His mother’s people were early Australian settlers. The Carey home was a farm near Campbelltown and as a boy, little Samuel walked nearly seven miles to School and back each day, an ...

  13. Toriello-Carey syndrome : Delineation and review

    NARCIS (Netherlands)

    Toriello, HV; Carey, JC; Addor, MC; Allen, W; Burke, L; Chun, N; Dobyns, W; Elias, E; Gallagher, R; Hordijk, R; Hoyme, G; Irons, M; Jewett, T; LeMerrer, M; Lubinsky, M; Martin, R; McDonald-McGinn, D; Neumann, L; Newman, W; Pauli, R; Seaver, L; Tsai, A; Wargowsky, D; Williams, M; Zackai, E

    2003-01-01

    Toriello and Carey [1988: Am J Med Genet 31:17-23] first described a syndrome with component manifestations of corpus callosum agenesis, unusual facial appearance, Robin sequence, and other anomalies. This was termed the Toriello-Carey syndrome by Lacombe et al. [1992: Am J Med Genet 42:374-376]. Si

  14. In Vitro Thermal Effects on Embryonic Cells of Endangered Hawksbill Turtle Eretmochelys imbricata

    OpenAIRE

    Takeshita, Satoshi; Matsuda, Naoki; Kodama, Seiji; Suzuki, Keiji; Watanabe, Masami

    2013-01-01

    The hawksbill turtle is an ectotherm, whose sex is determined by temperature during embryonic development. This study aimed to determine whether embryonic hawksbill turtle cells respond differently to temperature than mammalian cells. Embryonic hawksbill turtle cells were established in culture, and thermal effects on these cells were investigated in vitro. Cells were maintained in Dulbecco's Modified Eagle Medium supplemented with non-essential amino acids, vitamin solution, sodium pyruvate,...

  15. Genetic structure and natal origins of immature hawksbill turtles (Eretmochelys imbricata) in Brazilian waters.

    Science.gov (United States)

    Proietti, Maira C; Reisser, Julia; Marins, Luis Fernando; Rodriguez-Zarate, Clara; Marcovaldi, Maria A; Monteiro, Danielle S; Pattiaratchi, Charitha; Secchi, Eduardo R

    2014-01-01

    Understanding the connections between sea turtle populations is fundamental for their effective conservation. Brazil hosts important hawksbill feeding areas, but few studies have focused on how they connect with nesting populations in the Atlantic. Here, we (1) characterized mitochondrial DNA control region haplotypes of immature hawksbills feeding along the coast of Brazil (five areas ranging from equatorial to temperate latitudes, 157 skin samples), (2) analyzed genetic structure among Atlantic hawksbill feeding populations, and (3) inferred natal origins of hawksbills in Brazilian waters using genetic, oceanographic, and population size information. We report ten haplotypes for the sampled Brazilian sites, most of which were previously observed at other Atlantic feeding grounds and rookeries. Genetic profiles of Brazilian feeding areas were significantly different from those in other regions (Caribbean and Africa), and a significant structure was observed between Brazilian feeding grounds grouped into areas influenced by the South Equatorial/North Brazil Current and those influenced by the Brazil Current. Our genetic analysis estimates that the studied Brazilian feeding aggregations are mostly composed of animals originating from the domestic rookeries Bahia and Pipa, but some contributions from African and Caribbean rookeries were also observed. Oceanographic data corroborated the local origins, but showed higher connection with West Africa and none with the Caribbean. High correlation was observed between origins estimated through genetics/rookery size and oceanographic/rookery size data, demonstrating that ocean currents and population sizes influence haplotype distribution of Brazil's hawksbill populations. The information presented here highlights the importance of national conservation strategies and international cooperation for the recovery of endangered hawksbill turtle populations. PMID:24558419

  16. Specific accumulation of arsenic compounds in green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata) from Ishigaki Island, Japan

    International Nuclear Information System (INIS)

    Concentrations of total arsenic (As) and individual compounds were determined in green and hawksbill turtles from Ishigaki Island, Japan. In both species, total As concentrations were highest in muscle among the tissues. Arsenobetaine was a major compound in most tissues of both turtles. High concentrations of trimethylarsine oxide were detected in hawksbill turtles. A significant negative correlation between standard carapace length (SCL), an indicator of age, and total As levels in green turtles was found. In contrast, the levels increased with SCL of hawksbill turtles. Shifts in feeding habitats with growth may account for such a growth-dependent accumulation of As. Although concentrations of As in marine sponges, the major food of hawksbill turtles are not high compared to those in algae eaten by green turtles, As concentrations in hawksbill turtles were higher than those in green turtles, indicating that hawksbill turtles may have a specific accumulation mechanism for As. - Green turtles and hawksbill turtles have specific accumulation features of arsenic

  17. Reconstructing identity in Peter Carey's Jack Maggs / Susanna Isobella Viljoen

    OpenAIRE

    Viljoen, Susanna Isobella

    2007-01-01

    The formation of identity is closely integrated with contextual, temporal and spatial dimensions. Perceptions about personal, cultural and historical identities are created within literary spaces through authorial and literary representation. As a postcolonial writer, Carey questions modernist authors who assume that they are accurately recording reality, as well as the representation of the identities of peripheral characters and contexts found in Victorian fiction. By revi...

  18. Antimicrobial and anticoagulant activities of the spine of stingray Himantura imbricata

    OpenAIRE

    Kaliyamoorthy Kalidasan; Velayudham Ravi; Sunil Kumar Sahu; Murugan Lakshmi Maheshwaran; Kathiresan Kandasamy

    2014-01-01

    Objective: To study the spine structure of stingray Himantura imbricata (H. imbricata) and to evaluate the anticoagulant properties of the spine extract obtained through various solvents extracts followed by antibacterial activity against human pathogens. Methods: Spines of H. imbricata were collected from Nagappattinam coast, Tamil Nadu, India and their spines were observed under the light microscope. The grounded spines were subjected to extraction of metabolites using m...

  19. The Chemical Constituents of Diterpenoids from Kaempferia marginata Carey

    Institute of Scientific and Technical Information of China (English)

    YuJingguang; YuDonglei; SunLan; ZhangShu; ZhengCaicheng; ChenYuheng

    2001-01-01

    Marginatol (1), a new isopimarene diterpenoid, and five known compounds 8(14),15-sandera-copimaradiene-1α,9α-diol (2), 8(14), 15-sanderacopimaradene-1α 6β,9α-triol (3), germacrone (4), trans-ethyl p-methoxycinnamate (5) and n-pentadecane (6) were isolated from the hexane extract of Kaempferia marginata Carey.The structure of marginatol (1) was established as 8(14),15-isopimaradiene-6α-ol on the basis of spectral data (IR,MS,1h--1H 13C-1H NOESY and HMBC). Compounds 2, 3 and 4 were isolated for the first time from thisplant.

  20. "The Power to Create for Oneself": An Interview with Peter Carey.

    Science.gov (United States)

    Birns, Nick

    1994-01-01

    Presents an interview with Australian novelist and short story writer Peter Carey. Discusses why he left Australia, teaching in the United States, the writing processes behind his various publications, and translations of his work into other languages. (RS)

  1. Long-Term Assessment of an Innovative Mangrove Rehabilitation Project: Case Study on Carey Island, Malaysia

    OpenAIRE

    Motamedi, Shervin; Hashim, Roslan; Zakaria, Rozainah; Song, Ki-Il; Sofawi, Bakrin

    2014-01-01

    Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached...

  2. 'No other faction but my own': dynastic politics and Elizabeth I's Carey cousins

    OpenAIRE

    Bundesen, Kristin

    2009-01-01

    This thesis explores the relationship between kinship networks and Elizabethan politics. Elizabeth I’s Carey cousins, part of the larger Boleyn kinship network, provide the case study. Serving her through three generations dating from before her ascension to her death, Elizabeth enjoyed the benefits and tribulations of the constant presence of her extended family. Extending Elton’s ‘points of contact’ model to include not only court, privy council and parliament but also military and foreign ...

  3. REPORTE DEL TAMAÑO DE UNA CAMADA DE BARISIA IMBRICATA (WIEGMANN, 1828) (REPTILIA: ANGUIDAE)

    OpenAIRE

    G. F. Aguilar-Martínez

    2011-01-01

    The genus Barisia is endemic to Mexico occurring in temperate regions, at elevations between 2200-3800 m above sea level. Few records of clutch size of the species of Barisia are available, in particular for B. imbricata. The first report of a large clutch size (15 neonates alive) is given for this species.

  4. Antimicrobial and anticoagulant activities of the spine of stingray Himantura imbricata

    Institute of Scientific and Technical Information of China (English)

    Kaliyamoorthy Kalidasan; Velayudham Ravi; Sunil Kumar Sahu; Murugan Lakshmi Maheshwaran; Kathiresan Kandasamy

    2014-01-01

    Objective:To study the spine structure of stingray Himantura imbricata (H. imbricata) and to evaluate the anticoagulant properties of the spine extract obtained through various solvents extracts followed by antibacterial activity against human pathogens. Methods:Spines of H. imbricata were collected from Nagappattinam coast, Tamil Nadu, India and their spines were observed under the light microscope. The grounded spines were subjected to extraction of metabolites using methanol, ethanol, chloroform and acetone. Antibacterial activity was evaluated by disc diffusion technique against 10 human pathogens. Similarly, anticoagulant activity was also assessed by following United States Pharmacopeia method. Results:Light microscopic observation of spine revealed that the venom apparatus of the stingray H. imbricata consisted of two to three spines, glandular tissue and a sheath. The spine extract showed potent antibacterial activity against all tested pathogen. Maximum activity (14 mm) was found against Staphylococcus aureus. Crude extract showed 91.50 USP units/mg of anticoagulant activity. Conclusions: Microscopic observations gave new insight about the spine structure of the stingray. The spine extracts of H. imbricate showed potent activity against human pathogens revealed by the good zone of inhibition. Chloroform extracts conferred the most prominent antibacterial activity. The anticoagulant activity was also comparable with that of standard heparin.

  5. Antimicrobial and anticoagulant activities of the spine of stingray Himantura imbricata

    Directory of Open Access Journals (Sweden)

    Kaliyamoorthy Kalidasan

    2014-02-01

    Full Text Available Objective: To study the spine structure of stingray Himantura imbricata (H. imbricata and to evaluate the anticoagulant properties of the spine extract obtained through various solvents extracts followed by antibacterial activity against human pathogens. Methods: Spines of H. imbricata were collected from Nagappattinam coast, Tamil Nadu, India and their spines were observed under the light microscope. The grounded spines were subjected to extraction of metabolites using methanol, ethanol, chloroform and acetone. Antibacterial activity was evaluated by disc diffusion technique against 10 human pathogens. Similarly, anticoagulant activity was also assessed by following United States Pharmacopeia method. Results: Light microscopic observation of spine revealed that the venom apparatus of the stingray H. imbricata consisted of two to three spines, glandular tissue and a sheath. The spine extract showed potent antibacterial activity against all tested pathogen. Maximum activity (14 mm was found against Staphylococcus aureus. Crude extract showed 91.50 USP units/mg of anticoagulant activity. Conclusions: Microscopic observations gave new insight about the spine structure of the stingray. The spine extracts of H. imbricate showed potent activity against human pathogens revealed by the good zone of inhibition. Chloroform extracts conferred the most prominent antibacterial activity. The anticoagulant activity was also comparable with that of standard heparin.

  6. Free radical scavenging property and antiproliferative activity of Rhodiola imbricata Edgew extracts in HT-29 human colon cancer cells

    Institute of Scientific and Technical Information of China (English)

    Ravichandran Senthilkumar; Thangaraj Parimelazhagan; Om Prakash Chaurasia; RB Srivastava

    2013-01-01

    Objective: To investigate the in vitro antioxidant and antiproliferative activity of rhizome extracts of Rhodiola imbricata (R. imbricata) in HT-29 human colon cancer cell line. Methods: The successively extracted rhizome of R. imbricata using various solvents was analyzed for their total phenolics, tannins and flavonoid contents. In vitro antioxidant activity was evaluated by employing different assays, including DPPH, ABTS radical scavenging assays, FRAP, phosphomolybdenum reduction assay, superoxide anion, hydroxyl radical scavenging activities and metal chelating ability. Results: Acetone and methanol extracts recorded higher phenolic content and showed comparable antioxidant activity with standard reference. Additionally, they also inhibited the proliferation of HT-29 cells upon treatment at higher concentration (200 μg/mL) (acetone and methanol, 84% and 84%, respectively). On examination acetone extract exhibited antiproliferative activity in a concentration dependent manner whereas, methanol extract showed both dose dependent and time dependent inhibitory activity. Conclusions: The results obtained justify the traditional usage of R. imbricata from their promising antioxidant activity.

  7. Projeto de Turismo de Base Comunitária Tartaruga Imbricata, Brasil / Guiana Francesa Projet de tourisme à base communautaire Tartaruga Imbricata, Brésil /Guyane Tartaruga Imbricata community-based tourism project, Brazil / Guyana

    OpenAIRE

    Nádia Bandeira Sacenco Kornijezuk

    2012-01-01

    Em novembro de 2009, participei, durante nove dias, de uma experimentação de turismo chamada Projeto de Turismo de Base Comunitária Tartaruga Imbricata, numa rota de integração do Parque Nacional do Cabo Orange, no Brasil, com a Guiana Francesa. Essa viagem foi o primeiro trabalho de campo para a minha tese em Geografia e Gestão Ambiental (em andamento). Essa edição da experimentação visava propiciar a um grupo de gestores franceses, participantes de um seminário de cunho terapêutico chamado ...

  8. Molecular mechanism for cadmium-induced anthocyanin accumulation in Azolla imbricata.

    Science.gov (United States)

    Dai, Ling-Peng; Dong, Xin-Jiao; Ma, Hai-Hu

    2012-04-01

    Anthocyanins inducibly synthesized by Cd treatment showed high antioxidant activity and might be involved in internal detoxification mechanisms of Azolla imbricata against Cd toxicity. In order to understand anthocyanin biosynthesis mechanism during Cd stress, the cDNAs encoding chalcone synthase (CHS) and dihydroflavonol reductase (DFR), two key enzymes in the anthocyanin synthesis pathway, were isolated from A. imbricata. Deduced amino acid sequences of the cDNAs showed high homology to the sequences from other plants. Expression of AiDFR, and to a lesser extent AiCHS, was significantly induced in Cd treatment plant in comparison with the control. CHS and DFR enzymatic activities showed similar pattern changes with these genes expression during Cd stress. These results strongly indicate that Cd induced anthocyanin accumulation is probably mediated by up-regulation of structural genes including CHS and DFR, which might further increase the activities of enzymes encoded by these structural genes that control the anthocyanin biosynthetic steps. PMID:22225708

  9. Spatial dynamics of Fabiana imbricata shrublands in northwestern Patagonia in relation to natural fires

    Directory of Open Access Journals (Sweden)

    L. Ghermandi

    2010-05-01

    Full Text Available Fire is a critical disturbance in the structuring and functioning of most Mediterranean ecosystems. In northwestern Patagonia, vegetation patterns are strongly influenced by fire and environmental heterogeneity. Dendroecology, together with satellite imagery and GIS, have been demonstrated to be useful tools in studies that relate to fire effects with patches, patterns and species dynamics at landscape scale. Such studies can be approached from landscape ecology, which has evolved in the last years supported by the development of remote sensing and GIS technologies. This study evaluates the spatial dynamic of F. imbricata in response to fire using remote sensing, GIS and dendrochronology techniques, at landscape scale. Two sites were evaluated and one of them was affected by fire in the year 1999. The digital processing images (using the NBR spectral index and the dendroecological analysis verified this. A fire, occurring in 1978, was also detected by the analysis of F. imbricata growth rings. The relation between F. imbricata shrubland dynamics and spatial configuration with fire, land topography and hydrography was established in the study area.

  10. TRANSMISSION, COMMUNION, COMMUNICATION James Carey — Communication as Culture: Essays on Media and Society

    Directory of Open Access Journals (Sweden)

    Marco Toledo Bastos

    2011-12-01

    Full Text Available Communication as Culture: Essays on Media and Society is a classic text from the American school of communication. It was republished in 2009 by Routledge on the occasion of the author’s death. This new edition includes a critical foreword by G. Stuart Adam that explains Carey’s fundamental role in the establishment of communication studies in America, particularly against the American tradition of focusing only on mass communication’s function as a means of social and political control. Carey maintains that communication is not merely the transmission of information; reminding the reader of the link between the words “communication” and “community”. The collection of essays presented in this volume furnishes an important debate on the concept of communication, which at times favors the transmission of signs, and at times favors the sharing of common experiences or the synthesis of information.

  11. Relación entre la talla y los estados de maduración de Chelonia mydas y Eretmochelys imbricata en el agregado pesquero legal de Jardines del Rey

    OpenAIRE

    Pérez Bermúdez, E.

    2008-01-01

    Las tortugas marinas son especies amenazadas de extinción y están incluidas en el Apéndice I de CITES. A pesar de esto, Cuba ha sido una de las naciones que ha defendido la pesquería sostenible de este recurso, estableciendo la talla mínima de pesquería en 65 cm. La sostenibilidad estaba basada en el criterio de que en aguas cubanas la madurez sexual se alcanza de forma temprana y el crecimiento de los individuos es más acelerado. Adicionalmente, el número de individuos y las...

  12. Chemometric profile of root extracts of Rhodiola imbricata Edgew. with hyphenated gas chromatography mass spectrometric technique.

    Directory of Open Access Journals (Sweden)

    Amol B Tayade

    Full Text Available Rhodiola imbricata Edgew. (Rose root or Arctic root or Golden root or Shrolo, belonging to the family Crassulaceae, is an important food crop and medicinal plant in the Indian trans-Himalayan cold desert. Chemometric profile of the n-hexane, chloroform, dichloroethane, ethyl acetate, methanol, and 60% ethanol root extracts of R. imbricata were performed by hyphenated gas chromatography mass spectrometry (GC/MS technique. GC/MS analysis was carried out using Thermo Finnigan PolarisQ Ion Trap GC/MS MS system comprising of an AS2000 liquid autosampler. Interpretation on mass spectrum of GC/MS was done using the NIST/EPA/NIH Mass Spectral Database, with NIST MS search program v.2.0g. Chemometric profile of root extracts revealed the presence of 63 phyto-chemotypes, among them, 1-pentacosanol; stigmast-5-en-3-ol, (3β,24S; 1-teracosanol; 1-henteracontanol; 17-pentatriacontene; 13-tetradecen-1-ol acetate; methyl tri-butyl ammonium chloride; bis(2-ethylhexyl phthalate; 7,8-dimethylbenzocyclooctene; ethyl linoleate; 3-methoxy-5-methylphenol; hexadecanoic acid; camphor; 1,3-dimethoxybenzene; thujone; 1,3-benzenediol, 5-pentadecyl; benzenemethanol, 3-hydroxy, 5-methoxy; cholest-4-ene-3,6-dione; dodecanoic acid, 3-hydroxy; octadecane, 1-chloro; ethanone, 1-(4-hydroxyphenyl; α-tocopherol; ascaridole; campesterol; 1-dotriacontane; heptadecane, 9-hexyl were found to be present in major amount. Eventually, in the present study we have found phytosterols, terpenoids, fatty acids, fatty acid esters, alkyl halides, phenols, alcohols, ethers, alkanes, and alkenes as the major group of phyto-chemotypes in the different root extracts of R. imbricata. All these compounds identified by GC/MS analysis were further investigated for their biological activities and it was found that they possess a diverse range of positive pharmacological actions. In future, isolation of individual phyto-chemotypes and subjecting them to biological activity will definitely prove fruitful

  13. Projeto de Turismo de Base Comunitária Tartaruga Imbricata, Brasil / Guiana Francesa

    OpenAIRE

    Kornijezuk, Nádia Bandeira Sacenco

    2012-01-01

    Em novembro de 2009, participei, durante nove dias, de uma experimentação de turismo chamada Projeto de Turismo de Base Comunitária Tartaruga Imbricata, numa rota de integração do Parque Nacional do Cabo Orange, no Brasil, com a Guiana Francesa. Essa viagem foi o primeiro trabalho de campo para a minha tese em Geografia e Gestão Ambiental (em andamento). Essa edição da experimentação visava propiciar a um grupo de gestores franceses, participantes de um seminário de cunho terapêutico chamado ...

  14. Long-term assessment of an innovative mangrove rehabilitation project: case study on Carey Island, Malaysia.

    Science.gov (United States)

    Motamedi, Shervin; Hashim, Roslan; Zakaria, Rozainah; Song, Ki-Il; Sofawi, Bakrin

    2014-01-01

    Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest. PMID:25097894

  15. Long-Term Assessment of an Innovative Mangrove Rehabilitation Project: Case Study on Carey Island, Malaysia

    Directory of Open Access Journals (Sweden)

    Shervin Motamedi

    2014-01-01

    Full Text Available Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

  16. Evaluation of antimicrobial activity and toxic potential of extracts and triterpenes isolated from Maytenus imbricata

    Energy Technology Data Exchange (ETDEWEB)

    Rodrigues, Vanessa G.; Duarte, Lucienir P.; Silva, Gracia D.F.; Silva, Fernando C.; Goes, Jefferson V.; Takahashi, Jacqueline A.; Pimenta, Lucia P.S. [Universidade Federal de Minas Gerais, Belo Horizonte, MG (Brazil). Inst. de Ciencias Exatas. Dept. de Quimica; Vieira Filho, Sidney A., E-mail: vanessa.greg@yahoo.com [Universidade Federal de Ouro Preto, MG (Brazil). Escola de Farmacia. Dept. de Farmacia

    2012-07-01

    The phyto chemical study of hexane/ethyl ether (1:1) extract of the roots of M. imbricata, Celastraceae, resulted in the isolation and characterization of six known triterpenes: 11{alpha}-hydroxylup-20(29)-en-3-one, previously isolated from this species besides, 3{beta},11{alpha}-di-hydroxylup-20(29)-ene, 3,7-dioxofriedelane, 3-oxo-29-hydroxyfriedelane, tingenone and 6-oxo-tingenol. The chemical structures of these triterpenes were established by spectrometric data (IR, {sup 1}H and {sup 13}C NMR) and through comparison with literature data. The hexane/ethyl ether (1:1), ethyl acetate and methanol extracts, and 11{alpha}-hydroxylup-20(29)-en-3-one, tingenone and 6-oxo-tingenol, showed antimicrobial properties on in vitro assays. All extracts and triterpenes, except 3{beta},11{alpha}-di-hydroxylup-20(29)-ene, presented toxicity demonstrated by the larvicidal effect test using Artemia salina. (author)

  17. Evaluation of antimicrobial activity and toxic potential of extracts and triterpenes isolated from Maytenus imbricata

    International Nuclear Information System (INIS)

    The phyto chemical study of hexane/ethyl ether (1:1) extract of the roots of M. imbricata, Celastraceae, resulted in the isolation and characterization of six known triterpenes: 11α-hydroxylup-20(29)-en-3-one, previously isolated from this species besides, 3β,11α-di-hydroxylup-20(29)-ene, 3,7-dioxofriedelane, 3-oxo-29-hydroxyfriedelane, tingenone and 6-oxo-tingenol. The chemical structures of these triterpenes were established by spectrometric data (IR, 1H and 13C NMR) and through comparison with literature data. The hexane/ethyl ether (1:1), ethyl acetate and methanol extracts, and 11α-hydroxylup-20(29)-en-3-one, tingenone and 6-oxo-tingenol, showed antimicrobial properties on in vitro assays. All extracts and triterpenes, except 3β,11α-di-hydroxylup-20(29)-ene, presented toxicity demonstrated by the larvicidal effect test using Artemia salina. (author)

  18. Projeto de Turismo de Base Comunitária Tartaruga Imbricata, Brasil / Guiana Francesa Projet de tourisme à base communautaire Tartaruga Imbricata, Brésil /Guyane Tartaruga Imbricata community-based tourism project, Brazil / Guyana

    Directory of Open Access Journals (Sweden)

    Nádia Bandeira Sacenco Kornijezuk

    2012-03-01

    Full Text Available Em novembro de 2009, participei, durante nove dias, de uma experimentação de turismo chamada Projeto de Turismo de Base Comunitária Tartaruga Imbricata, numa rota de integração do Parque Nacional do Cabo Orange, no Brasil, com a Guiana Francesa. Essa viagem foi o primeiro trabalho de campo para a minha tese em Geografia e Gestão Ambiental (em andamento. Essa edição da experimentação visava propiciar a um grupo de gestores franceses, participantes de um seminário de cunho terapêutico chamado “Descobrir-se em terras desconhecidas”, a oportunidade de viver alguns dias em condições materiais rudimentares em uma natureza inóspita, convivendo com comunidades locais. A experiência incluiu: travessias em catraias, trechos em botes infláveis, viagens de camionete em rodovias perigosas, e o melhor: longos trechos de rio a bordo do barco Peixe – Boi, que se tornaria nosso hotel, meio de transporte, refeitório e palco de intensas sessões do seminário Se découvrir en terres inconnues. De forma geral a experimentação mostrou resultado positivo. Concluí que o turismo de base comunitária, da forma como foi realizado no Parque Nacional do Cabo Orange, teve dois efeitos principais: a experiência singular de conviver com comunidades ribeirinhas e o  aprofundamento das relações entre o parque nacional e o seu entorno. Ao final, anexei trechos de entrevistas realizadas com moradores de comunidades ribeirinhas vizinhas do parque nacional e também de um documento raro encontrado nesta viagem: um levantamento sócio-cultural de uma das comunidades, realizado por professores de História e alunos da escola da Vila Velha do Cassiporé.En novembre 2009, j’ai participé, pendant neuf jours, à un projet appelé “Projet de tourisme à base communautaire Tartaruga Imbricata”, un parcours intégré entre le Parc National Cabo Orange au Brésil et la Guyane française. Ce voyage a été le premier travail de terrain pour ma thèse en

  19. Qualitative research skills for social work: theory and practice, by Malcolm Carey. Quasi-experimental research designs, by Bruce A. Thyer

    DEFF Research Database (Denmark)

    Jensen, Niels Rosendal

    2015-01-01

    De to bøger (Malcolm Carey resp. Bruve A. Thyer) præsenteres i oversigtsform, og begge kan anvendes som håndbøger i kvalitativ forskning, hvor især Thyers tilgang til quasi-eksperimentelle forskningsdesign synes at udfylde et hul i dansk faglitteratur...

  20. Biological Characteristic of Azolla imbricata (Roxb) Nak and Its Utilization in Fisheries%满江红Azolla imbricata ( Roxb.) Nak的生物学特征及其渔业利用

    Institute of Scientific and Technical Information of China (English)

    胡家文; 沈子伟; 陈小江; 姚维志

    2005-01-01

    满江红(Azolla imbricata)天然资源丰富,产量高,渔业利用价值比较大.论文综述了近年来满江红的部分研究工作,介绍了满江红的生物学特征及其渔业利用,在前人的基础上,提出利用"鱼类-满江红"走生态养殖的模式.

  1. History of the Atlantic Pearl-Oyster, Pinctata imbricata, Industry in Venezuela and Colombia, with Biological and Ecological Observations

    OpenAIRE

    MacKenzie, Jr., Clyde L.; Troccoli, Luis; Leon S. , Luis B.

    2003-01-01

    In the 1500’s, the waters of Venezuela and to a lesser extent Colombia produced more natural pearls than any place ever produced in the world in any succeeding century. Atlantic pearl-oysters, Pinctata imbricata Röding 1798, were harvested almost entirely by divers. The pearls from them were exported to Spain and other European countries. By the end of the 1500’s, the pearl oysters had become much scarcer, and little harvesting took place during the 1600’s and 1700’s. Harvesting began to acce...

  2. Fire affects size and shape of Fabiana imbricata Shurblands in northwestern Patagonia

    Science.gov (United States)

    Oddi, Facundo; Ghermandi, Luciana

    2010-05-01

    Fire is a major environmental ecological agent acting in the landscape configuration and a factor that models vegetation in Mediterranean environments. Fire impacts differently in the landscape due to the intrinsic heterogeneity of the environments and the characteristics associated with each fire event. After fire, density of patches may be increased and the size of them may be reduced because fire generates areas of different successional stages. Landscape ecology seems to be the ideal theoretical approach to study the fire impact in fire prone environments. Landscape ecology has been greatly favoured by a significant progress in the last years of geographic information technologies (GIT) (remote sensing, GIS, GPS). The study area of this work is the San Ramon ranch (22,000 ha) located in Northwester Patagonia in the ecotone between the sub Antarctic forest in the West and the Patagonian steppe in the East. We studied sectors of the ranch with different fire recurrence in the last 40 years and we mapped Fabiana imbricata shrubland with GPS. This specie is a native shrub characteristic of Northwester Patagonia grasslands and its dynamic is not very known. Shrublands compete for the space with palatable grasses that are used for forage and livestock production, the main economic resource of the region. We analysed the mapped patches with GIS software, and we assessed landscape metrics to determine differences between sites with different fire recurrence. In the future we foresee the integrated use of satellite imagery with different resolution to add to GIS other important spatial variables (topography, hydrography, aspect, soil) to develop models that can explain landscape metrics, spatial configuration and the potential shrub invasion in the grassland.

  3. Postfire encroachment of Fabiana imbricata is real? Assessing changes of shrubland occupation during 40 years in NW Patagonia steppe

    Science.gov (United States)

    Lasaponara, Rosa; Oddi, Facundo; Ghermandi, Luciana

    2014-05-01

    Landscapes are dynamic in space and time, being spatio-temporal processes of particular interest for landscape ecology. In particular, grasslands can change their structure through the expansion of shrubs in the landscape matrix. Shrub encroachment affect biodiversity as well as forage availability that is the key component of the productive use of rangelands. However, despite its recognition as a global problem, knowledge on the rates, dynamics and encroachment patterns is even scarce. For example, although it is generally accepted that fire control shrub encroachment, certain shrubby species could be favored by the occurrence of fire. In northwestern Patagonian steppe, Fabiana imbricata form large monospecific shrublands that are part of the landscape mosaic and its dynamics of regeneration is strongly related to fire. This long-lived shrub (≡ 150 years) is a typical seeder that is killed by fire and recruits seedlings almost exclusively in post-fire, establishing even-age patches. Our objective was to determine whether F. imbricata shrublands have expanded during the last 40 years in a landscape fire prone. The study area corresponds to San Ramon ranch (22,000 ha) located in northwestern Patagonia steppe, Argentina (latitude -41° 04'; longitude -70° 51'). Two distribution maps of the species were made that corresponds to the study area in 1968 and 2011. The 1968 map was elaborated from the digitalization of aerial photographs (1:45000) while the 2011 map was produced with very high resolution satellite images, current aerial photographs and GPS field data. Both maps were loaded into a GIS environment, in which landscape metrics at patch and class level were determined and then compared. From remote sensing and dendroecological techniques, we know that the study area was almost entirely affected by fires during the study period. Therefore, the comparison of both maps allows us to know post-fire changes in the shrublands spatial configuration at the landscape

  4. Phenolic Profiling and Evaluation of Contraceptive Effect of the Ethanolic Extract of Salsola imbricata Forssk. in Male Albino Rats

    Directory of Open Access Journals (Sweden)

    Naglaa Gamil Shehab

    2014-01-01

    Full Text Available Reported researches dealing with either composition or bioactivity of Salsola imbricata are limited. This study was conducted aiming to investigate the phenolic composition of the plant and evaluate its efficacy as male contraceptive. Polyphenols, namely, phenolic acids and flavonoids, were qualitatively and quantitatively analysed by RP-HPLC in the hydrolysed methanol extract using two different wavelengths, 280 and 330 nm. The efficiency of different solvents in extracting the plant phenolics was assessed via spectrophotometric determination of the total phenolic and flavonoid contents. Acute toxicity study was carried out on the ethanolic extract to ascertain its safety prior to biological evaluation. The contraceptive effect was assessed, in male rats, by oral administration of the extract at two doses (250 and 500 mg/kg b. wt., over a period of 65 days. HPLC analyses allowed the identification and quantification of a total of 13 and 8 components in the hydrolysed-methanol extract; the overall phenolic composition was dominated by quercitrin (12.692% followed by coumaric acid (4.251%. Prolonged oral administration of the ethanolic extract caused slight reduction in the testis weight only. A significant decrease in the sperm count was observed (P<0.01 in the two treated groups while significant decrease in the epididymal sperm motility was only observed in the high dose group. Morphological abnormalities were observed in sperms of treated animals. No distinct change in serum FSH, LH, and testosterone concentration was recorded. The histopathological findings supported to a high extent these results. The male contraceptive activity of Salsola imbricata could be ascribed to its phenolic components, especially quercitrin.

  5. Peter Carey's Laptop

    Directory of Open Access Journals (Sweden)

    Rowan Wilken

    2014-03-01

    Full Text Available In 2001, the State Library of Victoria in Melbourne built on its holdings of Australian literary manuscripts by acquiring all the papers, drafts and other items associated with Peter Carey’s Booker Prize-winning novel, True History of the Kelly Gang. The centrepiece of this acquisition, and the focus of this article, is Carey’s Apple Mac Classic laptop computer. The argument that is developed in this article is that Carey’s laptop is a technological artefact that operates, especially at the time of its acquisition, as an important talisman in three interrelated senses. First, it was viewed by library staff as a key means of gaining access to the ‘true history’ of Carey’s own creative drive or creative unconscious. Second, its public display alongside other textual objects (mostly books served to reinforce a reconstructed corporate image that endeavoured to reposition the library as a vital contemporary cultural site and key player in Melbourne’s institutional gallery scene. Third, it was a crucial symbolic acquisition insofar as it spoke to certain desires within library management at that time, and which responded to similar moves at major libraries elsewhere around the world, to embrace collection digitisation as the path forward.

  6. Molecular Data for the Sea Turtle Population in Brazil

    OpenAIRE

    Sibelle Torres Vilaça; Fabricio Rodrigues dos Santos

    2013-01-01

    We report here a dataset comprising nine nuclear markers for the Brazilian population of Cheloniidae turtles: hawksbills (Eretmochelys imbricata), loggerheads (Caretta caretta), olive ridleys (Lepidochelys olivacea), and green turtles (Chelonia mydas). Because hybridization is a common phenomenon between the four Cheloniidae species nesting on the Brazilian coast, we also report molecular markers for the hybrids E. imbricata × C. caretta, C. caretta × L. olivacea, and E. imbricata × L. olivac...

  7. Aprender a aprender ; Carey, Benedict

    OpenAIRE

    Giménez, Montse

    2015-01-01

    «Aprender a aprender» podría considerarse, sin lugar a dudas, un excelente manual de Psicología de la Memoria o Psicología Cognitiva. Pero va más allá de muchos de los compendios con los que tradicionalmente nos encontramos...

  8. 镉诱导满江红(Azolla imbricata)花色素苷的初步鉴定、抗氧化活性及其作用机理%Preliminary identification, antioxidant activity and mechanism of anthocyanins from Azolla imbricata induced by cadmium

    Institute of Scientific and Technical Information of China (English)

    戴灵鹏; 董新姣; 马海虎; 盛丽梅

    2011-01-01

    In order to study the molecular structure of the anthocyanins which are induced by Cd in Azolla imbricata, anthocyanins were induced with 0.1mg·L-1 Cd, extracted with 0.1% HCI in methanol, purified by an Amberlite XAD-7 column and separated by Sephedex LH-20 column. The main compound was preliminarily identified as luteolinidin- 5-glucoside by its ultraviolet/visible absorbance spectrum and high performance liquid ( HPLC )chromatography. In vitro antioxidant properties of anthocyanins before and after purification were also evaluated by different analytical methods. The results showed that the total antioxidant capacity, reducing power, scavenging activity of superoxide anion radical (O2 - )and hydroxyl radical ( · OH )increased significantly with increasing concentrations of anthocyanin extracts, and the antioxidant activity of anthocyanins after purification was higher than the values of anthocyanins before purification. When the concentration of anthocyanins reached 0. 5 mg · mL-1, the values of anthocyanins after purification were increased by 3.16,1.36,2.71 and 1.86 times respectively, compared to anthocyanins before purification, indicating that luteolinidin-5-glucoside was the most important substance responsible for the antioxidant properties of A. imbricata. In addition, the antioxidant mechanism of anthocyanins is also discussed in this paper. In conclusion, the results obtained in this work indicated that the increase in the content of anthocyanins may be involved in internal detoxification mechanisms of A. imbricata against Cd toxicity.%为了研究镉诱导的满江红花色素苷的分子结构,分别用0.1 mg·L-1Cd、0.1%盐酸-甲醇溶液、XAD-7大孔树脂和葡聚糖凝胶SephadexLH-20柱对其进行诱导、提取、纯化和分离.经紫外可见光谱特性和HPLC图谱分析.初步确定此物质为木犀草定-5-葡萄糖苷.采用不同的体外实验方法评价了满江红花色素苷纯化前后的抗氧化活性.结果表明,花

  9. Sea Turtle Conservation on Bonaire. Sea Turtle Club Bonaire 1995 Project Report and Long Term Proposal

    NARCIS (Netherlands)

    Valkering, N.P.; Nugteren, Van P.; Eijck, Van T.J.W.

    1996-01-01

    Bonaire (12°12’N, 68°77’W), Netherlands Antilles, is famous for its unspoiled coral reefs. Reefs and lush sea grass provide forage and refuge for two species of endangered sea turtle, the green turtle ( Chelonia mydas) and the hawksbill (Eretmochelys imbricata). Loggerhead ( Caretta caretta ) and le

  10. The Nitrogen Absorption Effect of Azolla imbricata under Different Ratios of Nitrogen Source%满江红在不同氮浓度中对氮、磷的吸收效果

    Institute of Scientific and Technical Information of China (English)

    易厚燕; 吴爱平; 王华

    2013-01-01

    采用单一变量差减对比法,研究了满江红(Azolla imbricata)在氨氮、硝氮比例下的生长状况,同时检测满江红植物组织中氮含量的变化,以确定能促使满江红具最佳氮吸收效果的氨氮、硝氮浓度及比例.结果表明:不同氨氮与硝氮比例对满江红的生长存在差异,氮浓度过高和过低都不利于满江红的生长,而氨氮更有利于满江红的吸收:满江红对水中的氮、磷有很好的去除效果,在短时间内就能使水中氮、磷浓度迅速下降;植物组织中的氮、磷含量均随水中氮浓度的增加而升高,但水中较高的氮浓度可能会降低满江红的固氮作用.

  11. Study on the Physiological and Biochemical Responses of Azolla imbricata (Roxb.)Nakai to Ce~(3+) Stress%满江红对Ce~(3+)胁迫的生理生化应答反应研究

    Institute of Scientific and Technical Information of China (English)

    王学

    2010-01-01

    [目的] 探讨了满江红对Ce~(3+)胁迫的生理生化应答反应机制.[方法] 以水生蕨类植物满江红[Azolla imbricata (Roxb.) Nakai]为试验材料,研究了其叶绿素含量、光合放氧速率和抗氧化酶(SOD、CAT、POD)活性随Ce~(3+)浓度的变化情况.[结果]随着Ce~(3+)浓度的升高,SOD、CAT、POD活性均出现不同程度的应激性升高,而后降低;叶绿素含量、光合放氧速率呈现出先升后降的变化趋势.[结论] 在低浓度Ce~(3+)处理下,满江红通过增强其抗氧化能力,提高了其对Ce~(3+)胁迫的抵抗力;但随着Ce~(3+)浓度的加大,满江红的抗氧化能力逐渐减弱,表现出抑制效应.

  12. Form feature of the leaf of Azolla imbricata (Roxb.) Nakai observed lively by environmental scanning electronic microscope%满江红叶片形态特征的环境扫描电子显微镜活体观察

    Institute of Scientific and Technical Information of China (English)

    周静波; 俞斐; 沈显生

    2009-01-01

    为了克服水生植物含水量高,形貌容易变化的问题,本文利用环境扫描电子显微镜对水生蕨类植物满江红(Azolla imbricata)的形态结构进行了活体观察.满江红枝条顶端的叶片交互式覆瓦状排列,叶片圆形,几乎无气孔.位于茎中部和下部的叶片,2列互生,叶片对折抱茎,具有气孔.满江红叶片边缘具分泌细胞,幼叶的分泌细胞外具许多方形的盐结晶体,老叶的盐结晶体则脱落.结果发现,满江红具有向体外泌盐的功能.%In order to surmount higher consist of water and the changeable morphology of aquatic plants, this article describes the use of environmental scanning electronic microscope ( ESEM) to observe the morphological structure of aquatic fern Azolla imbricata alive. Azolla branches are covered by the tile-shaped leaves that are interactive, round almost no porosity in the top. The leaves located in the middle and lower stem, two alternate, leaf fold with a stoma. The secretory cells were found along the edges of new leaves to a large amount of square salt crystals. The salt crystals fall off when the leaves turned old. The results showed that A. imbricata has the function to secrete salts from the outer leaves.

  13. The Status and Conservation of Sea Turtles in Kenya.

    OpenAIRE

    Okemwa, G.M.; Nzuki, S.; Mueni, E.M.

    2004-01-01

    Five species of sea turtles have been documented as occurring within Kenyan waters: the green turtle (Chelonia mydas), hawksbill turtle (Eretmochelys imbricata), loggerhead turtle (Caretta caretta), olive ridley turtle (Lepidochelys olivacea) and the leatherback turtle (Dermochelys coriacea). Of these, green, hawksbill and olive ridley turtles are known to nest in Kenya. The 200km of beach land available for sea turtle nesting is however under critical threat of erosion and pollution (UNEP 19...

  14. Diversity and status of sea turtle species in the Gulf of Guinea islands

    OpenAIRE

    Castroviejo, Javier; Juste, Javier; Pérez del Val, Jaime; Castelo, Ramón; Gil, Ramón

    1994-01-01

    In West Africa, the Gulf of Guinea islands are important nesting places for four sea turtle species. The Green turtle (Chelonia mydas), the Hawksbill (Eretmochelys imbricata), the Olive Ridley (Lepidochelys olivacea) and the Leatherback (Dermochelys coriacea) turtles nest on Bioko’s southern beaches. The Green, Hawksbill and Leatherback turtles breed on Principe and São Tome. The Leatherback turtle nests, at least, on Annobén. The Leatherback turtle is reported on the four islan...

  15. Anatomy of the digestive tube of sea turtles (Reptilia: Testudines)

    OpenAIRE

    Marcela dos S. Magalhães; Armando J. Barsante Santos; Naisandra B. da Silva; Carlos E. B. Moura

    2012-01-01

    This study characterized the morphology of the digestive tube of five species of sea turtles. We used specimens found dead along the coast of the state Rio Grande do Norte, as well as specimens accidentally killed as a result of pelagic longline fishing. Nineteen animals of the following species were analyzed: Chelonia mydas (Linnaeus, 1758) (n = 9), Lepidochelys olivacea (Eschscholtz, 1829) (n = 6), Caretta caretta (Linnaeus, 1758) (n = 2), Eretmochelys imbricata (Linnaeus, 1766) (n = 1) and...

  16. The developmental biogeography of hawksbill sea turtles in the North Pacific

    OpenAIRE

    Van Houtan, Kyle S.; Francke, Devon L.; Alessi, Sarah; Jones, T. Todd; Martin, Summer L.; Kurpita, Lauren; King, Cheryl S.; Baird, Robin W.

    2016-01-01

    Abstract High seas oceanic ecosystems are considered important habitat for juvenile sea turtles, yet much remains cryptic about this important life‐history period. Recent progress on climate and fishery impacts in these so‐called lost years is promising, but the developmental biogeography of hawksbill sea turtles (Eretmochelys imbricata) has not been widely described in the Pacific Ocean. This knowledge gap limits the effectiveness of conservation management for this globally endangered speci...

  17. Captura incidental de tortugas marinas durante El Niño 1997-1998, en el norte del Perú Sea turtles by-catch during El Niño 1997-1998, in northern Perú

    Directory of Open Access Journals (Sweden)

    Javier Castro

    2012-11-01

    Full Text Available Se presenta evidencia del aumento de capturas incidentales de tortugas marinas en el norte del Perú, durante el fenómeno El Niño Oscilación del Sur (ENOS 1997-1998. El área de estudio se ubica frente a Lambayeque, entre 6°20'S y 7°10'S, y desde la costa hasta 35 mn mar afuera. Se analizaron y describieron los aparejos de enmalle por ser los que más interactuaban con estas tortugas, así como las características de las embarcaciones. Se registraron las tortugas capturadas por la flota artesanal entre enero 1996 y diciembre 1998; se identificó las especies capturadas y se analizó la captura por unidad de esfuerzo (CPUE; la información se correlacionó con la temperatura superficial del mar (TSM. Se analizó un total de 265 operaciones de pesca, capturándose un total de 383 tortugas, correspondiendo 80,4% a la tortuga pico de loro (Lepidochelys olivacea, 19,3% a la tortuga verde (Chelonia mydas y 0.2% a la tortuga carey (Eretmochelys imbricata. Se encontró una correlación altamente significativa entre las capturas de tortugas marinas y la TSM con un intervalo de confianza del 99% (Pearson; r = 0,787; σ = 0,000; N = 36. Se recomienda reforzar la colaboración entre entidades públicas y privadas para implementar medidas de manejo adecuadas para la conservación de estas especies amenazadas, sobre todo ante la eventualidad de un fenómeno ENOS.The main purpose of this work is to present evidence of sea turtles by-catch increase in northern Peru during the 1997-1998 El Niño Southern Oscillation (ENSO process. The study area is located off Lambayeque, between 6°20'S and 7°10'S, and from the coastline up to 35 nm offshore. The gillnet artisanal fishery was analyzed and described, since this was the fishing gear which most interact with sea turtles, the boat characteristics were evaluated as well. Sea turtle captures and species identification were registered from January 1996 until December 1998. The catch per unit effort (CPUE was

  18. Physiology and Ultrastructure of Azolla imbricata as Affected by Hg2+ and Cd2+ Toxicity%Hg2+和Cd2+胁迫对满江红生理和细胞超微结构的影响

    Institute of Scientific and Technical Information of China (English)

    施国新; 徐勤松; 解凯彬; 徐楠; 张小兰; 曾晓敏; 周红卫; 朱蕾

    2003-01-01

    The toxic effects of different gradient concentrations of Hg2+ and Cd2+ on chlorophyll content, chlorophyll a/b value, photosynthetic O2 evolution, respiration rate, anti-oxidase system (superoxide dismutase (SOD), catalase (CAT), peroxidase (POD)) and ultrastructure of the cells of Azolla imbricata (Roxb.) Nakai were studied. The results showed that with Hg2+ and Cd2+ increase, chlorophyll content and chlorophyll a/b value, photosynthetic O2 evolution decreased drastically; respiration rate peaked at 2 mg/L pollutant and declined afterwards. The activities of SOD, CAT and POD increased first and decreased afterwards except the activity of POD, which decreased with the increasing of Cd2+ concentration. Ultrastructural observation showed that the extent of ultrastructural damage was much more serious with higher pollutant concentration and longer time of stress. This resulted in swelling of chloroplast, disruption and disappearance of chloroplast membrane and disintegration of chloroplasts; swelling of cristae of mitochondria, deformation and vacuolization of mitochondria; condensation of chromatin in nucleus, dispersion of nucleolus and disruption of nuclear membrane. The experimental results showed: (1) Hg2+ and Cd2+ pollution not only destroyed physiological activities, but also caused irreversible damage to its ultrastructure, thus leading the cells to death; (2) With increase in the stress of Hg2+ and Cd2+, ultrastructural damage was related to the changes of plant physiology; (3) The toxic symptoms of plant showed an evident correlation between dose and effect; (4) The toxicity of Cd2+ on A. imbricata is heavier than that of Hg2+ under the same treatment time and concentration. The lethal concentration of Hg2+ to A. imbricata ranged from 3.5 to 4 mg/L, and that of Cd2+ ranged from 3 to 3.5 mg/L. The damage of cell ultrastructure on Anabaena azollae Strasburger was observed. The results indicated that tolerance of Azolla imbricata for Hg2+ and Cd2+ was higher

  19. Effects of Companion Fern Azolla imbricata Extracts on Rice Growth%伴生蕨类植物满江红提取物对水稻生长的影响

    Institute of Scientific and Technical Information of China (English)

    周兵

    2011-01-01

    Using the method of laboratory bioassay, the interference of the extracts from Azolla imbricata on the growth of rice was primarily studied. The results showed that the extracts with different concentrations had influences of different degree on the seed germination and seedling growth of rice. Extracts at concentrations of 250~4 000 μg/mL had no significant effects on rice seed germination; ethanol and aqueous extracts at concentration of 1 000 μg/mL could enhance the seedling root length and plant height significantly by 27.32% and 9.15%, respectively; ethanol extracts at concentrations of 250~4 000μg/mL and aqueous extracts at concentration of 4 000 μg/mL showed significant inhibition on rice seedling height, the same as aqueous extracts at concentration of 1 000 ~4 000 μg/mL on rice seedling root length; ethanol extracts at concentrations of 2 000-4 000 μg/mL and aqueous extracts at concentration of 4 000 μg/mL on seedling fresh weight per plant, the relative highest inhibition rates was 31.85%, 14.28%, 23.41%, 16.49% and 10.94% respectively. Quadratic models were better for fitting the relationship between rice seedling root length, height, fresh weight per plant and ethahol extracts concentrations (root length: y=-0.215x2+1.541z+5.133, p=0.001; seedling height: y=-0.035x2-O.O62x+5.574, /><0.001; fresh weight per plant: y =-0.685x2 +1.484x +100.0, p<0.005), between seedling root length, height, fresh weight per plant and aqueous extracts concentrations (root length: y=-0.005x2-0276x+7.012, P<0.001; seedling height: y=-0.123x2+0.760x + 4.490, P<0.001; fresh weight per plant: y=-1.742x2+10.49x+89.27, p<0.005).%通过室内生物测定的方法研究满江红提取物对水稻种子萌发及幼苗生长的影响,并就提取物浓度与水稻生长相关指标间的关系进行回归分析.结果表明,与对照相比,250~4 000 μg/mL的提取物对水稻种子萌发不产生显著影响;1 000 μg/mL的醇提物和水提物分别对水稻幼苗根长

  20. Comparison between Kemp, Smith & Ragan, Dick & Carey's Instructional Design Models

    Science.gov (United States)

    Birgili, Bengi

    2013-01-01

    Instructional design (ID) is systematic way of suggesting a structure and giving meaning to an instructional problem by helping to visualize the problem and breaking into discrete and manageable units. In addition, ID is a systematic reflective process of applying instructional principles into plans by material, activity, resources and evaluation…

  1. Food-poisoning outbreak and fatality following ingestion of sea turtle meat in the rural community of Ndrondroni, Mohéli Island, Comoros, December 2012.

    Science.gov (United States)

    Ben Ali Mbaé, Saindou; Mlindassé, Mohamed; Mihidjaé, Saindou; Seyler, Thomas

    2016-09-15

    On 24-December-2012 newspapers reported food-poisoning cases in Ndrondroni, Comoros. The authors conducted an investigation and a case-control study to identify the source and control the outbreak. They identified eight cases. A 6-month breastfed infant died. The results suggest consumption of Eretmochelys imbricata caused the outbreak. A bio-toxin ingested by the turtle might be the source. The local authorities informed the population on the danger of turtle-meat consumption. Cooking does not destroy the toxin. PMID:27452931

  2. Sea Turtle Conservation on Bonaire. Sea Turtle Club Bonaire 1995 Project Report and Long Term Proposal

    OpenAIRE

    Valkering, N.P.; Nugteren, Van, P.; Eijck, van, M.W.

    1996-01-01

    Bonaire (12°12’N, 68°77’W), Netherlands Antilles, is famous for its unspoiled coral reefs. Reefs and lush sea grass provide forage and refuge for two species of endangered sea turtle, the green turtle ( Chelonia mydas) and the hawksbill (Eretmochelys imbricata). Loggerhead ( Caretta caretta ) and leatherback ( Dermochelys coriacea) turtles are less common but are occasionally encountered. In the local language (Papiamentu) these species are known as ‘turtuga blanku’, ‘turtuga karet’, ‘turtuga...

  3. Mitochondrial DNA Profiling of Illegal Tortoiseshell Products Derived from Hawksbill Sea Turtles.

    Science.gov (United States)

    Foran, David R; Ray, Rebecca L

    2016-07-01

    The hawksbill sea turtle (Eretmochelys imbricata) is a highly endangered species, commonly poached for its ornate shell. "Tortoiseshell" products made from the shell are widely, although illegally, available in many countries. Hawksbills have a circumglobal distribution; thus, determining their origin is difficult, although genetic differences exist geographically. In the research presented, a procedure was developed to extract and amplify mitochondrial DNA from tortoiseshell items, in an effort to better understand where the species is being poached. Confiscated tortoiseshell items were obtained from the U.S. Fish and Wildlife Service, and DNA from 56 of them was analyzed. Multiple mitochondrial haplotypes were identified, including five not previously reported. Only one tortoiseshell item proved to be of Atlantic origin, while all others corresponded to genetic stocks in the Indo-Pacific region. The developed methodology allows for unique, and previously unattainable, genetic information on the illegal poaching of sea turtles for the decorative tortoiseshell trade. PMID:27364288

  4. Turtle riders: remoras on marine turtles in Southwest Atlantic

    Directory of Open Access Journals (Sweden)

    Ivan Sazima

    2006-03-01

    Full Text Available An overview is presented for a poorly documented relationship between reef vertebrates in Southwest Atlantic: remoras (Echeneidae associated with marine turtles. Two remora species (Echeneis naucrates and Remora remora and four turtle species (Caretta caretta, Chelonia mydas, Eretmochelys imbricata, and Dermochelys coriacea are here recorded in symbiotic associations in the SW Atlantic. Echeneis naucrates was recorded both on the coast and on oceanic islands, whereas R. remora was recorded only at oceanic islands and in the open sea. The remora-turtle association is usually regarded as an instance of phoresis (hitchhiking, albeit feeding by the fish is also involved in this symbiosis type. This association seems to be rare in SW Atlantic.Uma visão geé apresentada sobre uma relação pouco documentada entre vertebrados recifais no Atlântico Sul Ocidental: rêmoras (Echeneidae associadas a tartarugas marinhas. Duas espécies de rêmora ou pegador (Echeneis naucrates e Remora remora e quatro de tartarugas (Caretta caretta, Chelonia mydas, Eretmochelys imbricata e Dermochelys coriacea são aqui registradas em associações simbiônticas para o Atlântico Sul Ocidental. Echeneis naucrates foi registrada tanto na costa como em ilhas oceânicas, ao passo que R. remora foi registrada somente em ilhas oceânicas e região pelágica. A associação entre rêmoras e tartarugas é habitualmente considerada como forese, embora forrageamento, por parte das rêmoras, também esteja envolvido neste tipo de simbiose. Esta associação parece ser rara no Atlântico Sul Ocidental.

  5. Quasi-static strength and creep deformational characteristics of bedded salt from the Carey mine near Lyons, Kansas

    International Nuclear Information System (INIS)

    This report presents the results of a laboratory effort which was undertaken to determine mechanical properties of salt from Lyons, Kansas. Another goal of the experimental work was to define testing procedures, calibrations and data reduction during the process of generating strength data. Mechanical properties such as modulus of deformation and principal strain ratio were incorporated into simulations of Project Salt Vault using finite element methods. Deformational behavior of Lyons salt subjected to constant stress levels for extended periods of time was also evaluated in this experimental effort and compared to results determined for salt from other locations. Strength data and empirical relationships of strain as a function of time, stress and temperature were reduced for application to finite element analyses

  6. Mark Carey, In the Shadow of Melting Glaciers. Climate Change and Andean Society, Oxford, Oxford University Press, 2010, 273 p.

    OpenAIRE

    Capdevila, Luc

    2012-01-01

    Jusqu’à ces dix dernières années, les recherches sur le changement environnemental dans les milieux montagnards ont principalement été du ressort des sciences de la terre et de la vie. Les sciences de l’homme et de la société ont été peu mobilisées sur ces terrains. Cette situation est encore plus critique lorsqu’il s’agit des massifs montagneux situés hors d’Europe et d’Amérique du nord. Or il est essentiel d’étudier la transformation des écosystèmes montagnards – stress hydrique, désertific...

  7. Efectividad del monitoreo de la anidación de tortugas marinas para determinar el éxito reproductivo en playas del sur de Cuba

    Directory of Open Access Journals (Sweden)

    Julia Azanza-Ricardo

    2015-07-01

    Full Text Available El monitoreo de las anidaciones es muy útil como herramienta para la conservación pero el esfuerzo de trabajo en diferentes áreas puede variar grandemente. En Cuba, se aplican cuatro enfoques diferentes: monitoreo sistemático nocturno y diurno (MSN, y monitoreo esporádico con o sin comprobación de nidos (MECC. La cantidad y exactitud de los datos tomados y la calidad de la información derivada de ellos difieren. Por esta razón, en el presente trabajo se evalúa la efectividad de cada enfoque para determinar el éxito reproductivo de tortugas marinas en Cuba. El MSN sólo se realiza en las playas de anidación de la Península de Guanahacabibes, mientras que el MECC es el más extendido en el país. La porción de la temporada de anidación de cada una de las tres especies que anidan en Cuba (Chelonia mydas, Caretta caretta y Eretmochelys imbricata que se cubre con personal de monitoreo es baja para la mayoría de las playas, y sobre todo en el caso de E. imbricata. Se detectaron diferencias entre el monitoreo sistemático y esporádico, por tanto, la capacidad de detectar rastros falsos y verdaderos depende esencialmente de la frecuencia de monitoreo. Esto afecta la capacidad para evaluar el éxito de la anidación por playas. A pesar del incremento en los esfuerzos realizados en Cuba para el seguimiento de las principales colonias de anidación, se deben identificar nuevas estrategias para garantizar la correcta toma de información, y una mayor eficiencia del programa de monitoreo para obtener la mayor información posible de cada una de las especies con un adecuado balance de costo-beneficio.

  8. Anatomy of the digestive tube of sea turtles (Reptilia: Testudines

    Directory of Open Access Journals (Sweden)

    Marcela dos S. Magalhães

    2012-02-01

    Full Text Available This study characterized the morphology of the digestive tube of five species of sea turtles. We used specimens found dead along the coast of the state Rio Grande do Norte, as well as specimens accidentally killed as a result of pelagic longline fishing. Nineteen animals of the following species were analyzed: Chelonia mydas (Linnaeus, 1758 (n = 9, Lepidochelys olivacea (Eschscholtz, 1829 (n = 6, Caretta caretta (Linnaeus, 1758 (n = 2, Eretmochelys imbricata (Linnaeus, 1766 (n = 1 and Dermochelys coriacea (Vandelli, 1761 (n = 1. After opening the plastron, we removed the digestive organs and described the external and internal morphology of each organ. The esophagus of all species had pointed papillae on the mucosa. The stomach varied in shape among species. Differences were found in the mucosa of the small intestine. It was reticular in the duodenum, and longitudinal rectilinear in the jejunum/ileum. In all species an alternation of saccular and narrow regions was observed in the large intestine. The exception was D. coriacea, in which the mucosa of the entire large intestine had irregularly distributed folds. The pattern of the esophagus was the same in all species. The morphology of the stomach differed among species, and these differences reflect their diets. In addition, the distribution pattern of the folds on the mucosa of the small intestine varied between regions of the intestine and among species.

  9. The role of turtles as coral reef macroherbivores

    KAUST Repository

    Goatley, Christopher H. R.

    2012-06-29

    Herbivory is widely accepted as a vital function on coral reefs. To date, the majority of studies examining herbivory in coral reef environments have focused on the roles of fishes and/or urchins, with relatively few studies considering the potential role of macroherbivores in reef processes. Here, we introduce evidence that highlights the potential role of marine turtles as herbivores on coral reefs. While conducting experimental habitat manipulations to assess the roles of herbivorous reef fishes we observed green turtles (Chelonia mydas) and hawksbill turtles (Eretmochelys imbricata) showing responses that were remarkably similar to those of herbivorous fishes. Reducing the sediment load of the epilithic algal matrix on a coral reef resulted in a forty-fold increase in grazing by green turtles. Hawksbill turtles were also observed to browse transplanted thalli of the macroalga Sargassum swartzii in a coral reef environment. These responses not only show strong parallels to herbivorous reef fishes, but also highlight that marine turtles actively, and intentionally, remove algae from coral reefs. When considering the size and potential historical abundance of marine turtles we suggest that these potentially valuable herbivores may have been lost from many coral reefs before their true importance was understood. © 2012 Goatley et al.

  10. Diversity, habitat distribution, and indigenous hunting of marine turtles in the Calamian Islands, Palawan, Republic of the Philippines

    Directory of Open Access Journals (Sweden)

    Christopher N.S. Poonian

    2016-03-01

    Full Text Available All of the world’s seven species of marine turtle are threatened by a multitude of anthropogenic pressures across all stages of their life history. The Calamian Islands, Palawan, Philippines provide important foraging and nesting grounds for four species: green turtles (Chelonia mydas, hawksbill turtles (Eretmochelys imbricata, loggerheads (Caretta caretta, and leatherbacks (Dermochelys coriacea. This work aimed to assess the relative importance of turtle nesting beaches and local threats using a combination of social science and ecological research approaches. Endangered green turtles and critically endangered hawksbills were found to nest in the Calamianes. The most important nesting sites were located on the islands off the west of Busuanga and Culion, particularly Pamalican and Galoc and along the north coast of Coron, particularly Linamodio Island. Opportunistic hunting and egg collection, conducted legally by indigenous communities, is the most significant threat to sea turtles in the area. Sites particularly vulnerable to hunting were found to be Galoc Island, Pamalican Island, and Panlaitan Island. Raising awareness, community engagement, and understanding of socio-cultural drivers of sea turtle exploitation, particularly among indigenous communities, are essential to gain support for any effective conservation program. Additionally, more effective enforcement of laws related to the trade in sea turtle products is required to close the commercial and export markets.

  11. Male hatchling production in sea turtles from one of the world’s largest marine protected areas, the Chagos Archipelago

    Science.gov (United States)

    Esteban, Nicole; Laloë, Jacques-Olivier; Mortimer, Jeanne A.; Guzman, Antenor N.; Hays, Graeme C.

    2016-02-01

    Sand temperatures at nest depths and implications for hatchling sex ratios of hawksbill turtles (Eretmochelys imbricata) and green turtles (Chelonia mydas) nesting in the Chagos Archipelago, Indian Ocean are reported and compared to similar measurements at rookeries in the Atlantic and Caribbean. During 2012-2014, temperature loggers were buried at depths and in beach zones representative of turtle nesting sites. Data collected for 12,546 days revealed seasonal and spatial patterns of sand temperature. Depth effects were minimal, perhaps modulated by shade from vegetation. Coolest and warmest temperatures were recorded in the sites heavily shaded in vegetation during the austral winter and in sites partially shaded in vegetation during summer respectively. Overall, sand temperatures were relatively cool during the nesting seasons of both species which would likely produce fairly balanced hatchling sex ratios of 53% and 63% male hatchlings, respectively, for hawksbill and green turtles. This result contrasts with the predominantly high female skew reported for offspring at most rookeries around the globe and highlights how local beach characteristics can drive incubation temperatures. Our evidence suggests that sites characterized by heavy shade associated with intact natural vegetation are likely to provide conditions suitable for male hatchling production in a warming world.

  12. Morphology vs Genetics: the hybrid origin of a sea turtle disproved by DNA

    Directory of Open Access Journals (Sweden)

    L. GAROFALO

    2013-01-01

    Full Text Available A putative hybrid sea turtle juvenile was evaluated with discriminant DNA markers. When compared with standard values for sea turtles, the general morphological features assigned the specimen to Caretta caretta, while the shape and coloration of the head and the beak profile fell within the Eretmochelys imbricata range; the front flippers were instead like those of a Chelonia mydas. Moreover, prefrontal scale number was outside the putative parental species’ ranges. The mitochondrial D-loop sequence was from C. caretta, and matched haplotype CC-A2.1, the most common in the Mediterranean. Sequence profiles at three nuclear loci withspecies-specific substitutions (Cmos, BDNF and R35 revealed only C. caretta variants, thus excluding that the individual wasan F1 hybrid. This study highlights the importance of integrating different methodological approaches to understand reproductive animal biology and to set the boundaries for specific morphological traits. In particular, we propose the genetic analysis of a new combination of mitochondrial and nuclear markers as a standard procedure which can be adopted in the identification of sea turtlehybrids.

  13. Fishery gear interactions from stranded bottlenose dolphins, Florida manatees and sea turtles in Florida, U.S.A.

    Science.gov (United States)

    Adimey, Nicole M; Hudak, Christine A; Powell, Jessica R; Bassos-Hull, Kim; Foley, Allen; Farmer, Nicholas A; White, Linda; Minch, Karrie

    2014-04-15

    Documenting the extent of fishery gear interactions is critical to wildlife conservation efforts, especially for reducing entanglements and ingestion. This study summarizes fishery gear interactions involving common bottlenose dolphins (Tursiops truncatus truncatus), Florida manatees (Trichechus manatus latirostris) and sea turtles: loggerhead (Caretta caretta), green turtle (Chelonia mydas), leatherback (Dermochelys coriacea), hawksbill (Eretmochelys imbricata), Kemp's ridley (Lepidochelys kempii), and olive ridley (Lepidochelys olivacea) stranding in Florida waters during 1997-2009. Fishery gear interactions for all species combined were 75.3% hook and line, 18.2% trap pot gear, 4.8% fishing nets, and 1.7% in multiple gears. Total reported fishery gear cases increased over time for dolphins (p<0.05), manatees (p<0.01), loggerheads (p<0.05) and green sea turtles (p<0.05). The proportion of net interaction strandings relative to total strandings for loggerhead sea turtles increased (p<0.05). Additionally, life stage and sex patterns were examined, fishery gear interaction hotspots were identified and generalized linear regression modeling was conducted. PMID:24613263

  14. Male hatchling production in sea turtles from one of the world's largest marine protected areas, the Chagos Archipelago.

    Science.gov (United States)

    Esteban, Nicole; Laloë, Jacques-Olivier; Mortimer, Jeanne A; Guzman, Antenor N; Hays, Graeme C

    2016-01-01

    Sand temperatures at nest depths and implications for hatchling sex ratios of hawksbill turtles (Eretmochelys imbricata) and green turtles (Chelonia mydas) nesting in the Chagos Archipelago, Indian Ocean are reported and compared to similar measurements at rookeries in the Atlantic and Caribbean. During 2012-2014, temperature loggers were buried at depths and in beach zones representative of turtle nesting sites. Data collected for 12,546 days revealed seasonal and spatial patterns of sand temperature. Depth effects were minimal, perhaps modulated by shade from vegetation. Coolest and warmest temperatures were recorded in the sites heavily shaded in vegetation during the austral winter and in sites partially shaded in vegetation during summer respectively. Overall, sand temperatures were relatively cool during the nesting seasons of both species which would likely produce fairly balanced hatchling sex ratios of 53% and 63% male hatchlings, respectively, for hawksbill and green turtles. This result contrasts with the predominantly high female skew reported for offspring at most rookeries around the globe and highlights how local beach characteristics can drive incubation temperatures. Our evidence suggests that sites characterized by heavy shade associated with intact natural vegetation are likely to provide conditions suitable for male hatchling production in a warming world. PMID:26832230

  15. Plastic ingestion by sea turtles in Paraíba State, Northeast Brazil

    Directory of Open Access Journals (Sweden)

    Camila Poli

    2015-09-01

    Full Text Available ABSTRACT Currently, plastics are recognized as a major pollutant of the marine environment, representing a serious threat to ocean wildlife. Here, we examined the occurrence and effects of plastic ingestion by sea turtles found stranded along the coast of Paraíba State, Brazil from August 2009 to July 2010. Ninety-eight digestive tracts were examined, with plastic found in 20 (20.4%. Sixty five percent (n = 13 of turtles with plastic in the digestive tract were green turtles (Chelonia mydas, 25% (n = 5 were hawksbills (Eretmochelys imbricata, and 10% (n = 2 were olive ridley (Lepidochelys olivacea. More plastic was found in the intestine (85% than in other parts of the gastrointestinal tract. We observed complete blockage of the gastrointestinal tract due to the presence of plastic in 13 of the 20 turtles that had ingested plastic. No correlation was found between the curved carapace length (CCL and the number or mass of the plastic ingested items. Significant differences were found between the intake of hard and soft plastic and the ingestion of white/transparent and colored plastic, with soft and white/transparent plastics being more commonly ingested. This study reveals the serious problem of plastic pollution to sea turtles at the area.

  16. Effects of cadmium on nitrogen metabolism in Azolla imbricata-Anabaena azollae symbiosis%镉对满江红(Azolla imbricata)-鱼腥藻(Anabaena azollae)共生体氮代谢的影响

    Institute of Scientific and Technical Information of China (English)

    戴灵鹏; 熊治廷; 马海虎

    2009-01-01

    在实验室条件下,研究了不同浓度(0、0.01、0.05、0.1、0.5mg/L)的Cd对满江红-鱼腥藻共生体异型胞频率,固氮酶、谷氨酰氨合成酶活性以及铵态氮、游离氨基酸、可溶性蛋白、总氮含量的影响.结果表明,在整个实验期间,0.01mg/L Cd处理对上述指标均没产生显著影响,说明满江红-鱼腥藻共生体对Cd具有较强的耐性.当培养液中Cd浓度≥0.05mg/L时,随溶液中Cd浓度的增加和处理时间的推移,异型胞频率、固氮酶活性、谷氨酰氨合成酶活性、可溶性蛋白含量和总氮含量逐渐下降,而铵态氮含量在处理初期显著降低,随后迅速增加,游离氨基酸含量则逐渐增加.研究结果表明高浓度的Cd处理导致满江红-鱼腥藻共生体氮代谢的紊乱,最终造成氮素积累量的下降.

  17. Mass poisoning after consumption of a hawksbill turtle, Federated States of Micronesia, 2010

    Directory of Open Access Journals (Sweden)

    Boris Pavlin

    2015-01-01

    Full Text Available Background: Marine turtles of all species are capable of being toxic. On 17 October 2010, health authorities in the Federated States of Micronesia were notified of the sudden death of three children and the sickening of approximately 20 other people on Murilo Atoll in Chuuk State. The illnesses were suspected to be the result of mass consumption of a hawksbill turtle (Eretmochelys imbricata. An investigation team was assembled to confirm the cause of the outbreak, describe the epidemiology of cases and provide recommendations for control. Methods: We conducted chart reviews, interviewed key informants, collected samples for laboratory analysis, performed environmental investigations and conducted a cohort study. Results: Four children and two adults died in the outbreak and 95 others were sickened; 84% of those who ate the turtle became ill (n = 101. The relative risk for developing illness after consuming the turtle was 11.1 (95% confidence inteval: 4.8–25.9; there was a dose-dependent relationship between amount of turtle meat consumed and risk of illness. Environmental and epidemiological investigations revealed no alternative explanation for the mass illness. Laboratory testing failed to identify a causative agent. Conclusion: We concluded that turtle poisoning (also called chelonitoxism was the cause of the outbreak on Murilo. The range of illness described in this investigation is consistent with previously reported cases of chelonitoxism. This devastating incident highlights the dangers, particularly to children, of consuming turtle meat. Future incidents are certain to occur unless action is taken to alter turtle-eating behaviour in coastal communities throughout the world.

  18. Core and body surface temperatures of nesting leatherback turtles (Dermochelys coriacea).

    Science.gov (United States)

    Burns, Thomas J; McCafferty, Dominic J; Kennedy, Malcolm W

    2015-07-01

    Leatherback turtles (Dermochelys coriacea) are the largest species of marine turtle and the fourth most massive extant reptile. In temperate waters they maintain body temperatures higher than surrounding seawater through a combination of insulation, physiological, and behavioural adaptations. Nesting involves physical activity in addition to contact with warm sand and air, potentially presenting thermal challenges in the absence of the cooling effect of water, and data are lacking with which to understand their nesting thermal biology. Using non-contact methods (thermal imaging and infrared thermometry) to avoid any stress-related effects, we investigated core and surface temperature during nesting. The mean±SE core temperature was 31.4±0.05°C (newly emerged eggs) and was not correlated with environmental conditions on the nesting beach. Core temperature of leatherbacks was greater than that of hawksbill turtles (Eretmochelys imbricata) nesting at a nearby colony, 30.0±0.13°C. Body surface temperatures of leatherbacks showed regional variation, the lateral and dorsal regions of the head were warmest while the carapace was the coolest surface. Surface temperature increased during the early nesting phases, then levelled off or decreased during later phases with the rates of change varying between body regions. Body region, behavioural phase of nesting and air temperature were found to be the best predictors of surface temperature. Regional variation in surface temperature were likely due to alterations in blood supply, and temporal changes in local muscular activity of flippers during the different phases of nesting. Heat exchange from the upper surface of the turtle was dominated by radiative heat loss from all body regions and small convective heat gains to the carapace and front flippers. PMID:25965013

  19. Enhancing the use of Argos satellite data for home range and long distance migration studies of marine animals.

    Directory of Open Access Journals (Sweden)

    Xavier Hoenner

    Full Text Available Accurately quantifying animals' spatial utilisation is critical for conservation, but has long remained an elusive goal due to technological impediments. The Argos telemetry system has been extensively used to remotely track marine animals, however location estimates are characterised by substantial spatial error. State-space models (SSM constitute a robust statistical approach to refine Argos tracking data by accounting for observation errors and stochasticity in animal movement. Despite their wide use in ecology, few studies have thoroughly quantified the error associated with SSM predicted locations and no research has assessed their validity for describing animal movement behaviour. We compared home ranges and migratory pathways of seven hawksbill sea turtles (Eretmochelys imbricata estimated from (a highly accurate Fastloc GPS data and (b locations computed using common Argos data analytical approaches. Argos 68(th percentile error was 4 km for LC ≤ 0. Argos error structure was highly longitudinally skewed and was, for all LC, adequately modelled by a Student's t distribution. Both habitat use and migration routes were best recreated using SSM locations post-processed by re-adding good Argos positions (LC 1, 2 and 3 and filtering terrestrial points (mean distance to migratory tracks ± SD = 2.2 ± 2.4 km; mean home range overlap and error ratio = 92.2% and 285.6 respectively. This parsimonious and objective statistical procedure however still markedly overestimated true home range sizes, especially for animals exhibiting restricted movements. Post-processing SSM locations nonetheless constitutes the best analytical technique for remotely sensed Argos tracking data and we therefore recommend using this approach to rework historical Argos datasets for better estimation of animal spatial utilisation for research and evidence-based conservation purposes.

  20. The developmental biogeography of hawksbill sea turtles in the North Pacific.

    Science.gov (United States)

    Van Houtan, Kyle S; Francke, Devon L; Alessi, Sarah; Jones, T Todd; Martin, Summer L; Kurpita, Lauren; King, Cheryl S; Baird, Robin W

    2016-04-01

    High seas oceanic ecosystems are considered important habitat for juvenile sea turtles, yet much remains cryptic about this important life-history period. Recent progress on climate and fishery impacts in these so-called lost years is promising, but the developmental biogeography of hawksbill sea turtles (Eretmochelys imbricata) has not been widely described in the Pacific Ocean. This knowledge gap limits the effectiveness of conservation management for this globally endangered species. We address this with 30 years of stranding observations, 20 years of bycatch records, and recent simulations of natal dispersal trajectories in the Hawaiian Archipelago. We synthesize the analyses of these data in the context of direct empirical observations, anecdotal sightings, and historical commercial harvests from the insular Pacific. We find hawksbills 0-4 years of age, measuring 8-34 cm straight carapace length, are found predominantly in the coastal pelagic waters of Hawaii. Unlike other species, we find no direct evidence of a prolonged presence in oceanic habitats, yet satellite tracks of passive drifters (simulating natal dispersal) and our small sample sizes suggest that an oceanic phase for hawksbills cannot be dismissed. Importantly, despite over 600 million hooks deployed and nearly 6000 turtle interactions, longline fisheries have never recorded a single hawksbill take. We address whether the patterns we observe are due to population size and gear selectivity. Although most sea turtle species demonstrate clear patterns of oceanic development, hawksbills in the North Pacific may by contrast occupy a variety of ecosystems including coastal pelagic waters and shallow reefs in remote atolls. This focuses attention on hazards in these ecosystems - entanglement and ingestion of marine debris - and perhaps away from longline bycatch and decadal climate regimes that affect sea turtle development in oceanic regions. PMID:27110350

  1. Factors affecting hatch success of hawksbill sea turtles on Long Island, Antigua, West Indies.

    Directory of Open Access Journals (Sweden)

    Mark Allan Ditmer

    Full Text Available Current understanding of the factors influencing hawksbill sea turtle (Eretmochelys imbricata hatch success is disparate and based on relatively short-term studies or limited sample sizes. Because global populations of hawksbills are heavily depleted, evaluating the parameters that impact hatch success is important to their conservation and recovery. Here, we use data collected by the Jumby Bay Hawksbill Project (JBHP to investigate hatch success. The JBHP implements saturation tagging protocols to study a hawksbill rookery in Antigua, West Indies. Habitat data, which reflect the varied nesting beaches, are collected at egg deposition, and nest contents are exhumed and categorized post-emergence. We analyzed hatch success using mixed-model analyses with explanatory and predictive datasets. We incorporated a random effect for turtle identity and evaluated environmental, temporal and individual-based reproductive variables. Hatch success averaged 78.6% (SD: 21.2% during the study period. Highly supported models included multiple covariates, including distance to vegetation, deposition date, individual intra-seasonal nest number, clutch size, organic content, and sand grain size. Nests located in open sand were predicted to produce 10.4 more viable hatchlings per clutch than nests located >1.5 m into vegetation. For an individual first nesting in early July, the fourth nest of the season yielded 13.2 more viable hatchlings than the initial clutch. Generalized beach section and inter-annual variation were also supported in our explanatory dataset, suggesting that gaps remain in our understanding of hatch success. Our findings illustrate that evaluating hatch success is a complex process, involving multiple environmental and individual variables. Although distance to vegetation and hatch success were inversely related, vegetation is an important component of hawksbill nesting habitat, and a more complete assessment of the impacts of specific

  2. Estimating total population size for adult female sea turtles: Accounting for non-nesters

    Science.gov (United States)

    Kendall, W.L.; Richardson, J.I.

    2008-01-01

    Assessment of population size and changes therein is important to sea turtle management and population or life history research. Investigators might be interested in testing hypotheses about the effect of current population size or density (number of animals per unit resource) on future population processes. Decision makers might want to determine a level of allowable take of individual turtles of specified life stage. Nevertheless, monitoring most stages of sea turtle life histories is difficult, because obtaining access to individuals is difficult. Although in-water assessments are becoming more common, nesting females and their hatchlings remain the most accessible life stages. In some cases adult females of a given nesting population are sufficiently philopatric that the population itself can be well defined. If a well designed tagging study is conducted on this population, survival, breeding probability, and the size of the nesting population in a given year can be estimated. However, with published statistical methodology the size of the entire breeding population (including those females skipping nesting in that year) cannot be estimated without assuming that each adult female in this population has the same probability of nesting in a given year (even those that had just nested in the previous year). We present a method for estimating the total size of a breeding population (including nesters those skipping nesting) from a tagging study limited to the nesting population, allowing for the probability of nesting in a given year to depend on an individual's nesting status in the previous year (i.e., a Markov process). From this we further develop estimators for rate of growth from year to year in both nesting population and total breeding population, and the proportion of the breeding population that is breeding in a given year. We also discuss assumptions and apply these methods to a breeding population of hawksbill sea turtles (Eretmochelys imbricata) from

  3. To eat or not to eat? Debris selectivity by marine turtles.

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    Qamar Schuyler

    Full Text Available Marine debris is a growing problem for wildlife, and has been documented to affect more than 267 species worldwide. We investigated the prevalence of marine debris ingestion in 115 sea turtles stranded in Queensland between 2006-2011, and assessed how the ingestion rates differ between species (Eretmochelys imbricata vs. Chelonia mydas and by turtle size class (smaller oceanic feeders vs. larger benthic feeders. Concurrently, we conducted 25 beach surveys to estimate the composition of the debris present in the marine environment. Based on this proxy measurement of debris availability, we modeled turtles' debris preferences (color and type using a resource selection function, a method traditionally used for habitat and food selection. We found no significant difference in the overall probability of ingesting debris between the two species studied, both of which have similar life histories. Curved carapace length, however, was inversely correlated with the probability of ingesting debris; 54.5% of pelagic sized turtles had ingested debris, whereas only 25% of benthic feeding turtles were found with debris in their gastrointestinal system. Benthic and pelagic sized turtles also exhibited different selectivity ratios for debris ingestion. Benthic phase turtles had a strong selectivity for soft, clear plastic, lending support to the hypothesis that sea turtles ingest debris because it resembles natural prey items such as jellyfish. Pelagic turtles were much less selective in their feeding, though they showed a trend towards selectivity for rubber items such as balloons. Most ingested items were plastic and were positively buoyant. This study highlights the need to address increasing amounts of plastic in the marine environment, and provides evidence for the disproportionate ingestion of balloons by marine turtles.

  4. Characterization of a subtropical hawksbill sea turtle (Eretmocheyles imbricata assemblage utilizing shallow water natural and artificial habitats in the Florida Keys.

    Directory of Open Access Journals (Sweden)

    Jonathan C Gorham

    Full Text Available In order to provide information to better inform management decisions and direct further research, vessel-based visual transects, snorkel transects, and in-water capture techniques were used to characterize hawksbill sea turtles in the shallow marine habitats of a Marine Protected Area (MPA, the Key West National Wildlife Refuge in the Florida Keys. Hawksbills were found in hardbottom and seagrass dominated habitats throughout the Refuge, and on man-made rubble structures in the Northwest Channel near Cottrell Key. Hawksbills captured (N = 82 were exclusively juveniles and subadults with a straight standard carapace length (SSCL ranging from 21.4 to 69.0cm with a mean of 44.1 cm (SD = 10.8. Somatic growth rates were calculated from 15 recaptured turtles with periods at large ranging from 51 to 1188 days. Mean SSCL growth rate was 7.7 cm/year (SD = 4.6. Juvenile hawksbills (<50 cm SSCL showed a significantly higher growth rate (9.2 cm/year, SD = 4.5, N = 11 than subadult hawksbills (50-70 cm SSCL, 3.6 cm/year, SD = 0.9, N = 4. Analysis of 740 base pair mitochondrial control region sequences from 50 sampled turtles yielded 12 haplotypes. Haplotype frequencies were significantly different compared to four other Caribbean juvenile foraging aggregations, including one off the Atlantic coast of Florida. Many-to-one mixed stock analysis indicated Mexico as the primary source of juveniles in the region and also suggested that the Refuge may serve as important developmental habitat for the Cuban nesting aggregation. Serum testosterone radioimmunoassay results from 33 individuals indicated a female biased sex ratio of 3.3 females: 1 male for hawksbills in the Refuge. This assemblage of hawksbills is near the northern limit of the species range, and is one of only two such assemblages described in the waters of the continental United States. Since this assemblage resides in an MPA with intensive human use, basic information on the assemblage is vital to resource managers charged with conservation and species protection in the MPA.

  5. Dimensionamiento y configuración teórica de una línea de cultivo de ostra perla (Pinctada imbricata Mollusca: Bivalvia), en la bahía de Charagato, isla de Cubagua, Venezuela Sizing and theoretical configuration of a longline for growing pearl oysters (Pinctada imbricata Mollusca: Bivalvia) in the Bay of Charagato, Cubagua Island, Venezuela

    OpenAIRE

    Ernesto Trujillo; Guillermo Martínez; Luis León

    2007-01-01

    Se dimensionó una línea de cultivo mediante análisis teórico de la resistencia hidrodinámica del sistema y se configuró utilizando simulación análoga con la ayuda de modelos a escala. Se determinaron las variables de tensión en línea madre (TLM), la relación de aspecto (R A) del fondeo y el excursionamiento (P R) de la línea madre, cuyas resultantes fueron la tensión en el sistema de fondeo (T2) y el ángulo de ataque (α2); la tensión vertical en una sección de línea madre (TF) y el ángul...

  6. Dimensionamiento y configuración teórica de una línea de cultivo de ostra perla (Pinctada imbricata Mollusca: Bivalvia, en la bahía de Charagato, isla de Cubagua, Venezuela Sizing and theoretical configuration of a longline for growing pearl oysters (Pinctada imbricata Mollusca: Bivalvia in the Bay of Charagato, Cubagua Island, Venezuela

    Directory of Open Access Journals (Sweden)

    Ernesto Trujillo

    2007-05-01

    Full Text Available Se dimensionó una línea de cultivo mediante análisis teórico de la resistencia hidrodinámica del sistema y se configuró utilizando simulación análoga con la ayuda de modelos a escala. Se determinaron las variables de tensión en línea madre (TLM, la relación de aspecto (R A del fondeo y el excursionamiento (P R de la línea madre, cuyas resultantes fueron la tensión en el sistema de fondeo (T2 y el ángulo de ataque (α2; la tensión vertical en una sección de línea madre (TF y el ángulo de ataque de la catenaria (α. Para la construcción del modelo del cabo de fondeo y de una sección de línea madre se utilizaron factores de escala lineal de 40 y de 18,86; y escalas de fuerza de 9.776,3 y de 1.233,13, respectivamente. Las mínimas tensiones T2 fueron obtenidas para RA de 1/4 y 1/5, a partir de la tensión teórica T1 de 777,15 kgf, con ángulos de ataque de 84,9° y 90°. Para una sección de una línea de cultivo de seis linternas, con organismos en fase adulta, las unidades centrales 3 y 4 alcanzaron una profundidad operacional de 7,37 m, una P R promedio de 93,6% y un ángulo de ataque de 55,86°. Se requiere validar in situ los resultados teóricos obtenidos, con ayuda de un tensiómetro, a fin de encontrar el equilibrio estructural del sistema con un mínimo de inversión y máximo rendimientoA farming longline was sized by theoretically analyzing the system’s hydrodynamic resistance and configured using analogue simulation with the help of scale models. The variables determined were mother line tension (TLM, the relationship of the anchoring aspect (R A, and movement (P R of the mother line. These resulted in anchoring system tension (T2 and attack angle (α2, and the vertical tension for a section of the mother line (TF and the attack angle of the catenary (α. The model of the anchor end and a section of the mother line were constructed using lineal scale factors of 40 and 18.86 and force scales of 9,776.3 and 1,233.13, respectively. The minimum tensions (T2 obtained for R A were 1/4 and 1/5 based on the theoretical tension (T1 777.15 kgf, with attack angles of 84.9° and 90°. A longline section with six lanterns and loaded with adult organisms had central units 3 and 4 at an operational depth of 7.37 m, an average P R of 93.6%, and an attack angle of 55.86°. A tensiometer should be used for an in situ validation of the theoretical results in order to determine the structural equilibrium of the system with minimum investment and maximum performance

  7. 高产高蛋白饲草满江红(Azolla imbricata)放养技术研究初报%Cultivation Techniques of Azolla with High Yield and Protein

    Institute of Scientific and Technical Information of China (English)

    刘一; 樊廷录; 唐小明

    2000-01-01

    满江红属蕨类植物,以营养体的侧枝断离无性繁殖方式为主,粗蛋白、赖氨酸、磷、粗脂肪含量均高于紫花苜蓿.研究结果表明,群体延续时间为7 d时,繁殖系数最高,在西北地区4~9月份的适宜生长季节,采用薄膜微水放养技术,每公顷水面生产鲜草约450 t,折合干重45 t,粗蛋白11.25 t,可作为优质饲料开发利用.

  8. 镉胁迫对满江红-鱼腥藻共生体供氮能力的影响%Effects of Cd stress on nitrogen supply ability of Azolla imbricata-Anabaena azolla symbiosis

    Institute of Scientific and Technical Information of China (English)

    詹玲君; 马海虎; 南旭阳; 张业建; 陈访; 周舟; 戴灵鹏

    2015-01-01

    在实验室条件下,以土壤铵态氮、硝态氮、可溶性有机氮及可溶性总氮含量变化为指标,研究了镉胁迫下满江红-鱼腥藻共生体对稻田供氮能力的影响.当土壤中镉浓度为0.3 mg·kg-1时,满江红-鱼腥藻共生体对镉的蓄积量较少,土壤中铵态氮、硝态氮、可溶性有机氮及可溶性总氮含量与对照组无显著差异.当土壤中镉浓度≥1.0 mg·kg-1时,随土壤中镉浓度的增加和处理时间的推移,满江红-鱼腥藻共生体体内的镉含量逐渐增加,土壤中硝态氮、可溶性有机氮及可溶性总氮含量逐渐下降,而铵态氮含量先上升后下降.研究结果表明高浓度的镉胁迫导致满江红-鱼腥藻共生体对土壤的供氮能力显著下降.

  9. 废电池对水质的影响及满江红的净化效果%Effect of Wasted Battery on Water Quality and Purified Efficiency of Azolla imbricata

    Institute of Scientific and Technical Information of China (English)

    袁丽水

    2000-01-01

    @@ 1 前言 废电池对水生生物的危害很大.20世纪30年代,日本某小镇由于常把用过的废电池随手扔在井水边,久而久之,电池中的有毒物质污染了井水,人们饮用了含有大量有毒物质的水,引起中毒,造成多人发疯. 废电池含有哪些有害、有毒物质,对水生生物的危害究竟如何,怎样净化废电池对水质的污染等,我们通过实验进行了一些探讨.

  10. Effects of Temperature and Phosphorus Concentration on Nitrogen and Phosphorus Uptake of Azolla imbricata%水温和磷浓度对满江红氮磷吸收的影响

    Institute of Scientific and Technical Information of China (English)

    易厚燕; 吴爱平; 庞燕; 储昭升

    2014-01-01

    通过模拟研究满江红(Azolla imbricate)在不同水温和不同磷浓度下的生长状况,了解洱海满江红生物量的变化规律及其对水中磷吸收的最佳温度和最佳磷浓度.结果表明,满江红在10 ~ 30℃均能正常生长,最适生长温度为20~25℃.满江红植物组织中的氮磷浓度及植物的相对生长率随着水中磷浓度升高而增加,其组织中的氮磷浓度在水温25℃时达到最高.表明满江红对水体中的磷有较好的吸收效果,但受到水温和水中磷浓度的交互影响,即随着水中磷浓度的增加和温度的升高,对水中磷的吸收量均增多但吸收率下降;满江红对水中磷吸收的最佳条件为水温25℃、磷浓度为0.075 mg/L.

  11. 槐叶萍、浮萍、满江红对水体中镉离子的吸收研究%Study on Ability of Salvinia natans, Lemna minor and Azolla imbricata to Cumulate Cd2+

    Institute of Scientific and Technical Information of China (English)

    刘俊; 杨阿喜; 张晓燕; 金根娣

    2010-01-01

    在实验室水培条件下,研究了槐叶萍、满江红、浮萍等水生植物对Cd2+的累积吸收能力.用原子吸收分光光度法对三种植物的水培液中Cd2+的浓度进行了测定.结果表明Cd2+在2~20mg·L-1的浓度范围内,三种植物对Cd2+的累积吸收量随着浓度的增加而增加,槐叶萍累积吸收能力大于满江红,满江红优于浮萍;在40~100mg·L-1的浓度范围内,三种植物对Cd2+的累积吸收量则随着浓度的递增而大幅降低,槐叶萍对Cd2+的去除效果较其它两种植物为佳.因此,在治理轻度镉污染水体时,三种植物均是较好的备选植物,而在治理重度镉污染水体时,应首选满江红.

  12. 濒危野生动植物药材非法贸易调查%Survey on Illegal Trade in Endangered Medicinal Species in China’s Traditional Chinese Medicine Wholesale Markets

    Institute of Scientific and Technical Information of China (English)

    尹峰; 梦梦; 徐玲; 刘定震

    2015-01-01

    对10个药材市场上的沉香、冬虫夏草、肉苁蓉、蛤蚧、乌梢蛇、蕲蛇、金钱白花蛇、玳瑁、熊胆、麝香、虎骨、豹骨、犀牛角、羚羊角和穿山甲片等15种常用或曾用的濒危物种药材进行实地调查,结果表明:对国家明令禁止贸易的濒危物种药材公开摆卖现象并不突出,但其地下交易具有普遍性;虎豹骨和犀牛角的贸易已非常少见,仅0.8%和1.4%的药材经营者声称有售,而且他们都提及了贸易禁令,显示出从业人员较强的保护意识;“中国野生动物经营利用管理专用标识制度”的推行,在一定程度上遏制了标识物种药材的非法贸易;药市上部分濒危物种药材来自境外,走私现象依然存在。针对调查中存在的问题,建议修改和完善相应的法律法规、加大执法能力建设和打击力度、加强贸易和市场的监测、开展公众教育,以遏制药用濒危野生动植物药材的非法贸易。%In this survey,10 Traditional Chinese Medicine(TCM)wholesale markets in China were visi-ted and 15 endangered medicinal species were recorded.The species include Aquilaria Spp.,Cordyceps sinensis,Cistanche Spp,Gekko gecko,Zaocys dhumnades,Agkistrodon acutus,Bungarus multicinctus, Hawksbill (Eretmochelys imbricata)shell,Bear (Ursus thibetanus and U.arctos)bile,Musk (Moschus spp.),Tiger(Panthera tigris)bone,Leopard (Panthera pardus,Neofelis nebulosa and Uncia uncia,) bone,Rhino(Rhinoceros spp.)horn,Saiga(Saiga tatarica)horn and Pangolin(Manis spp.)scale.The investigation shows that the open illegal wildlife trade is not serious,however it is still common in black market.Very little tiger bone,leopard bone and rhino horn was found,only 0.8% and 1.4% dealers claimed to have tiger bone and rhino horn for sale,all of them mentioned the 1993 trade ban.The imple-mentation of Special Mark System of China Wildlife Management and Utilization has succeeded in de-creasing the

  13. 中东太平洋公海金枪鱼延绳钓误捕海龟的观察和分析%Observation and analysis of sea turtles mortality longline fishing in high seas of Central and Eastern Pacific Ocean

    Institute of Scientific and Technical Information of China (English)

    戴小杰; 李延; 许柳雄; 朱江峰

    2009-01-01

    根据2006年2-11月科学观察员对热带东太平洋公海海域(05°N~10°S,134°W~173°W)金枪鱼延绳钓渔业的调查,期间共投钩223次(天),误捕到绿海龟、蠵龟、丽龟、玳瑁和棱皮龟5种共22尾,死亡海龟13尾.从海龟误捕率看,平均每次尾数为0.098 65.平均每千钩尾数0.037 40.从海龟的钩获部位看,喙(嘴)上钩占41.0%,躯干部位上钩占13.6%,喉部上钩占13.6%,前肢上钩占18.2%,主绳缠绕被捕获占13.6%.海龟的误捕区域位于04°S以北海域,几乎可全年捕获.此外分析了不同钩位误捕海龟的数量,探讨了影响误捕率和死亡率的因素,提出保护对策.%Based on the data by scientific observer survey in the tropical Central and Eastern Pacific Ocean (05°N -10°S,134° W -173°W) by the tuna longline fishery targeting bigeye tuna during Feb.-Nov. , 2006, with the total 223 sets, 22 sea turtle bycatch were observed and analysed. The incidental sea turtles were classified as 5 species, namely green sea turtles (Chelonia mydas),loggerhead (Caretta caretta),Oliver ridley turtle (Lepidochelys olivacea), hawksbill turtle ( Eretmochelys imbricata) and leatherback turtle (Dermochelys coriacea) with total 22 individuals. There were 13 sea turtles mortality after capture. The incidental catch rate is 0. 09865 per set and 0. 374 0 per thousand hooks. The interaction between fishing gear and sea turtles showed that sea turtle body were hooked with mouth accounting for 41. 0% , external parts 13.6% , swallowed 13.6% .foreleg 18.2% and mainline entangement 13.6%. Most sea turtle bycatch occurred north of 04°S and almost all the year round. Analysis was also made to identify the specific hook number for interaction with sea turtles. Discussion was made on factors for affecting catch rate and mortality. Measures were suggested on conservation and by-catch mitigation for sea turtles.

  14. A new ichnospecies of Nereites from carboniferous tidal-flat facies of Eastern Kansas, USA: Implications for the Nereites-Neonereites debate

    Science.gov (United States)

    Mangano, M.G.; Buatois, L.A.; Maples, C.G.; West, R.R.

    2000-01-01

    Predominantly horizontal, gently curved to slightly sinuous traces constituting uniserial rows of imbricated, subspherical sediment pads occur in Pennsylvanian tidal-flat facies of eastern Kansas. These traces exhibit a complex, actively filled internal structure. The presence of a median tunnel enveloped by overlapping pads of reworked sediment indicates that these biogenic structures should be included in the ichnogenus Nereites MacLeay in Murchison, 1839. A new ichnospecies, N. imbricata, is erected. Externally, Nereites imbricata differs from the other Nereites ichnospecies by the large, tightly packed, imbricated pads that commonly result in an annulated appearance on bedding-planes. Internally, obliquely arranged, arcuate lamiliae envelope the median tunnel and tend to follow the outline of the external semispherical pads. Additionally, the behavioral pattern reflected by N. imbricata is less specialized than that of the other Nereites ichnospecies. Eione monoliformis Tate, 1859 resembles N. imbricata in general appearance, but lack the diagnostic Nereites internal structure, and is invariably preserved as positive epireliefs. Occurrence of Nereites imbricata as both median tunnels surrounded by reworked sediment (Nereites preservation) and uniserial rows of imbricated sediment pads (Neonereites preservation) supports the notion that Neonereites Seilacher, 1960 is a preservational variant of Nereites. The ichnogenus Nereites is an eurybathic form and is a common component of Paleozoic shallow-marine facies.

  15. 75 FR 57039 - Medicare Program; Workshop Regarding Accountable Care Organizations, and Implications Regarding...

    Science.gov (United States)

    2010-09-17

    ... specific to OIG. Thomas Carey at (410) 786-4560, for general and logistical issues. You may also send... address this issue in prior proposed rulemaking under section 1877 of the Act, and the HHS Agencies...

  16. Pop / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2008-01-01

    Heliplaatidest: Supergrass "Diamond Hoo Ha", Man In Maardu "Solid Symphonies", Van Der Graaf Generator "Trisector", Bon Iver "For Emma, Forever Ago", The Last Shadow Puppets "The Age Of The Understatement", Brad Mehldau Trio "Live", Mariah Carey "E=MCø"

  17. Which Heavy Drinking College Students Benefit from a Brief Motivational Intervention?

    OpenAIRE

    Carey, Kate B.; Henson, James M.; Carey, Michael P.; Maisto, Stephen A.

    2007-01-01

    Heavy drinking among college students is common and is often harmful. A previously reported randomized trial revealed that a brief motivational intervention (BMI) reduced the alcohol consumption of heavy drinking college students (Carey, Carey, Maisto, & Henson, 2006). For this study, we conducted supplemental analyses of hypothesized predictors of change using the same sample (N = 495). Greater readiness-to-change, higher levels of self-regulation, and less engagement in social comparison al...

  18. The Akoya pearl oyster shell as an archival monitor of lead exposure

    International Nuclear Information System (INIS)

    The Akoya pearl oyster (Pinctada imbricata) was experimentally exposed to (a) constant levels of lead (Pb) at 180 μg L-1 for nine weeks, or (b) two short term (pulse) exposures of Pb at 180 μg L-1 (three weeks each) with an intervening depuration period (three weeks), to assess its utility as an (i) accumulative monitor of Pb contamination and an (ii) archival monitor for discriminating constant versus pulsed Pb exposure events. P. imbricata showed similar reductions in growth (based on shell morphology and wet weight) and Pb accumulation patterns for whole tissue and shell in response to both Pb exposure regimes. Thus the whole oyster was deemed an inappropriate accumulative monitor for assessing short-term temporal variation of Pb exposure and effect. However, using secondary ion mass spectrometry, Pb was shown to accumulate in the successively deposited nacreous layers of the shell of P. imbricata, documenting the exposure history of constant versus pulsed Pb events. Patterns of Pb deposition not only reflected the frequency of Pb exposure events but also their relative durations. Thus, the shell of P. imbricata may be employed as a suitable biological archive of Pb exposure. - The Akoya pearl oyster shell is a suitable biological archive of environmental Pb exposure

  19. Mineral composition of some traditional Mexican teas.

    Science.gov (United States)

    Laferriere, J E; Weber, C W; Kohlhepp, E A

    1991-07-01

    Teas of plant origin traditionally consumed by the Mountain Pima of Chihuahua, Mexico, were analyzed for mineral nutritional content. Fe, Cu, Zn, Ca, and Mg composition was determined for native teas made from shoots of Tagetes lucida, T. filifolia, Elytraria imbricata, and Holodiscus dumosus, and from root xylem of Ceanothus depressus and Phaseolus ritensis. Native uses of these teas are also described. PMID:1924192

  20. In Support of a Functional Definition of Interaction.

    Science.gov (United States)

    Wagner, Ellen D.

    1994-01-01

    Discusses several systems models of interaction in distance education and relates them to the contexts of instructional delivery, instructional design, instructional theory, and learning theory in order to establish conceptual parameters for the function of interaction. Models covered include those developed by Dick and Carey, Shannon and Weaver,…

  1. Hate Speech and Its Harms: A Communication Theory Perspective.

    Science.gov (United States)

    Calvert, Clay

    1997-01-01

    Uses J.W. Carey's transmission and ritual communication models to illustrate harms caused by hate speech. Examines legal precedent for the ritual model, but suggests that courts more often adopt the transmission model. Argues that, although the ritual model points to a different, long-term harm caused by hate speech, its adoption raises troubling…

  2. Vozmozhno, võ jeshtshjo ne znajete, tshto...

    Index Scriptorium Estoniae

    2003-01-01

    J. Lennoni kujundatud margid müüdi oksjonil, M. Carey otsib meest, R.E.M.-il ilmub hittide kogumik, Coldplay oli edukas Q Awards-2003, B. Streisand esineb vähe kontsertidel, Korn esineb enne poksimatshi, Eminemi loomingulistest plaanidest

  3. Kuula. Kuu artist Scarlett Johansson. Kuu plaat / Mart Juur

    Index Scriptorium Estoniae

    Juur, Mart, 1964-

    2008-01-01

    Näitlejast ja lauljast Scarlett Johanssonist. Heliplaatidest: Madonna "Hard Candy", Vaiko Eplik ja Eliit "3: Kosmoseodüsseia", Pia Fraus "After Summer", HU? "Film", Enrique Iglesias "95/08 Exitos", Pendulum "In Silico", Mariah Carey "E=MC2"

  4. Educating for Citizenship: What Should Political Scientists Be Teaching?

    Science.gov (United States)

    Thompson, Dennis F.; And Others

    1984-01-01

    What political scientists should be teaching undergraduates to prepare them for citizenship is discussed in five articles by Dennis F. Thompson; Nancy C. M. Hartsock; Wilson Carey McWilliams and Marc K. Landy; Harvey C. Mansfield, Jr.; and Mary Cornelia Porter and Corey Venning. (RM)

  5. Plaadid / Valner Valme

    Index Scriptorium Estoniae

    Valme, Valner, 1970-

    2005-01-01

    Uutest heliplaatidest Kaiser Chiefs "Employment", Low "The Great destroyer", Broken Time Orchestra "Broken Time", Mariah Carey "Emancipation Of Mimi", 22 Pistepirkko "Drops & Kicks", Jimmy Eat World "Futures", Nitty "Player's Paradise", Gilad Atzmon & The Orient House Ensemble "Re-arranging the 20th Century"

  6. Characteristics of the First Child Predict the Parents' Probability of Having Another Child

    Science.gov (United States)

    Jokela, Markus

    2010-01-01

    In a sample of 7,695 families in the prospective, nationally representative British Millennium Cohort Study, this study examined whether characteristics of the 1st-born child predicted parents' timing and probability of having another child within 5 years after the 1st child's birth. Infant temperament was assessed with the Carey Infant…

  7. Plaadisoovitus

    Index Scriptorium Estoniae

    2005-01-01

    Uutest helisalvestistest "Bodyrockers", Jane Birkin "Randez Vouz", Björk "Yhe Music From Matthew Barney's Drawing Restraint 9", Coldplay "X & Y", Black Eyed Peas "Monkey Business", Static-X "Start a War", Oasis "Don't Believe the Truth", Röyksopp "The Understanding", Gorillaz "Demon Days", Mariah Carey "The Emancipation Of Mimi", James Blunt "Back To Bedlam", Dream Theater "Octavarium"

  8. Gravitational anomalies, gerbes, and hamiltonian quantization

    OpenAIRE

    Ekstrand, C.; Mickelsson, J.

    1999-01-01

    In [Carey, A.L., J. Mickelsson, and M. K. Murray: Comm. Math. Phys. 183, 707 (1997)] Schwinger terms in hamiltonian quantization of chiral fermions coupled to vector potentials were computed, using some ideas from the theory of gerbes, with the help of the family index theorem for a manifold with boundary. Here, we generalize this method to include gravitational Schwinger terms.

  9. Gravitational anomalies, gerbes and hamiltonian quantization

    CERN Document Server

    Ekstrand, C

    2000-01-01

    In [Carey, A.L., J. Mickelsson, and M. K. Murray: Comm. Math. Phys. 183, 707 (1997)] Schwinger terms in hamiltonian quantization of chiral fermions coupled to vector potentials were computed, using some ideas from the theory of gerbes, with the help of the family index theorem for a manifold with boundary. Here, we generalize this method to include gravitational Schwinger terms.

  10. Four Institutional Views of Advertising--Perspectives for Understanding. Advertising Working Paper Number 1.

    Science.gov (United States)

    Rotzoll, Kim B.

    In this paper, the first in a series of working papers on various significant aspects of advertising, the author examines in depth the writings of four essayists who have looked at advertising from the institutional viewpoint. James Carey sees advertising's basic institutional function as market information and the secondary function as social…

  11. Integrating Technology into Classroom: The Learner-Centered Instructional Design

    Science.gov (United States)

    Sezer, Baris; Karaoglan Yilmaz, Fatma Gizem; Yilmaz, Ramazan

    2013-01-01

    In this study, to present an instructional model by considering the existing models of instructional design (ARCS, ADDIE, ASSURE, Dick and Carey, Seels and Glasgow, Smith and Ragan etc.) with the nature of technology-based education and to reveal analysis, design, development, implementation, evaluation, and to revise levels with lower levels of…

  12. 2 ühe hoobiga. Uusi kinolevi filme tutvustab Tiit Tuumalu / Tiit Tuumalu

    Index Scriptorium Estoniae

    Tuumalu, Tiit, 1971-

    2008-01-01

    Õudusmuusikal "Sweeney Todd : Fleet Streeti deemonlik habemeajaja" Stephen Sondheimi muusikali alusel : režissöör Tim Burton : peaosas Johnny Depp : Ameerika Ühendriigid - Suurbritannia 2007 ja muusikaline draama "Ükskord" ("Once") : režissöör John Carey : Iirimaa 2006

  13. Relation of Emotional Reactivity and Regulation to Childhood Stuttering

    Science.gov (United States)

    Karrass, Jan; Walden, Tedra A.; Conture, Edward G.; Graham, Corrin G.; Arnold, Hayley S.; Hartfield, Kia N.; Schwenk, Krista A.

    2006-01-01

    The purpose of the present study was to examine relations between children's emotional reactivity, emotion regulation and stuttering. Participants were 65 preschool children who stutter (CWS) and 56 preschool children who do not stutter (CWNS). Parents completed the Behavior Style Questionnaire (BSQ) [McDevitt S. C., & Carey, W. B. (1978). A…

  14. Tõmbed ja tõukumised / Aita Kivi

    Index Scriptorium Estoniae

    Kivi, Aita, 1954-

    2001-01-01

    Sisu : Margaret Atwood. Pime palgamõrvar; Sebastian Faulks. Charlotte Gray; Peter Carey. Oscar ja Lucinda; Kurt Vonnegut. Sinihabe; Aita Kivi. Jumalakäpp; Aita Kivi. Lummus; Raymond Radiguet. Saatan ihus; Wendu Northcutt. Darwini auhinnad; Merike Hanni. Ümberõpe; Merike Hanni. Tori hobune; Friedrich Schiller. Maria Stuart

  15. Nutritional Profile of Phytococktail from Trans-Himalayan Plants

    OpenAIRE

    Dhar, Priyanka; Tayade, Amol B.; Kumar, Jatinder; Chaurasia, Om P.; Srivastava, Ravi B.; Singh, Shashi B

    2013-01-01

    We estimated the nutritive value, vitamin content, amino acid composition, fatty acid content, and mineral profile of a phytococktail comprising sea buckthorn (Hippophae rhamnoides), apricot (Prunus armeniaca), and roseroot (Rhodiola imbricata) from trans-Himalaya. The free vitamin forms in the phytococktail were determined by rapid resolution liquid chromatography/tandem mass spectrometry (RRLC-MS/MS). Vitamin E and B-complex vitamins were detected as the principle vitamins. Reversed-phase h...

  16. Chemical composition and antioxidant capacities of phytococktail extracts from trans-Himalayan cold desert

    OpenAIRE

    Dhar, Priyanka; BAJPAI, Prabodh Kumar; Tayade, Amol Bapurao; CHAURASIA, Om Prakash; Srivastava, Ravi Bihari; Singh, Shashi Bala

    2013-01-01

    Background Himalayan plants are widely used in traditional system of medicine both as prophylactics and therapeutics for high altitude maladies. Our aim was to evaluate the antioxidant capacities and bioactive compounds of methanol and n-hexane extracts of the phytococktail comprising of sea buckthorn (Hippophae rhamnoides), apricot (Prunus armeniaca) and roseroot (Rhodiola imbricata) from trans-Himalaya. Methods The 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azinobis-(3-ethylbenzothiazoline-...

  17. Notes on Freycinetia (Pandanaceae from Jambi, Sumatra with the descrip- tion of a new species

    Directory of Open Access Journals (Sweden)

    Nursahara Pasaribu

    2015-03-01

    Full Text Available Nine species of Freycinetia are enumerated for Jambi, Sumatra, Indonesia: F. angustifolia Blume, F. berbakensis Widjaja, Pasaribu & Hidayat, F. imbricata Blume, F. javanica Blume, F. kamiana B.C. Stone, F. rigidifolia Hemsl.,  F. sumatrana Hemsl., F. winkleriana Martelli and F. scabrosa Pasaribu & Widjaja,. The latest species is newly described.  A key to the nine species in Jambi is provided.

  18. Investigation of stingray spines by Fourier transform infrared spectroscopy analysis to recognize functional groups

    OpenAIRE

    Muthuramalingam Uthaya Siva; Mohideen Abdul Badhul Haq; Deivasigamani Selvam; Ganesan Dinesh Babu; Rathinam Bakyaraj

    2013-01-01

    Objective: To investigate functional groups of toxic spines in stingray by Fourier transform infrared spectroscopic analysis. Methods: The venom extract of Himantura gerrardi, Himantura imbricata and Pastinachus sephen were centrifuged at 6 000 r/min for 10 min. The supernatant was collected and preserved separately in methanol, ethanol, chloroform, acetone (1:2) and then soaked in the mentioned solvents for 48 h. Then extracts were filtered and used for Fourier transform ...

  19. HUMAN MESOTRYPSIN DEFIES NATURAL TRYPSIN INHIBITORS. FROM PASSIVE RESISTANCE TO ACTIVE DESTRUCTION.

    OpenAIRE

    Sahin-Tóth, Miklós

    2005-01-01

    More than twenty years ago Rinderknecht et al. identified a minor trypsin isoform resistant to natural trypsin inhibitors in the human pancreatic juice. At the same time, Estell and Laskowski found that an inhibitor-resistant trypsin from the pyloric caeca of the starfish Dermasterias imbricata rapidly hydrolyzed the reactive-site peptide bonds of trypsin inhibitors. A connection between these two seminal discoveries was made recently, when human mesotrypsin was shown to cleave the reactive-s...

  20. 千葉大学園芸学部松戸キャンパスにおけるシダ植物フロラと生育状況

    OpenAIRE

    水野,大樹; Taiki Mizuno; 竹﨑, 大悟; Hirosato Takezaki; 安田,正次; Masatsugu Yasuda; 百原,新; Arata Momohara; 沖津, 進; Susumu Okitsu

    2011-01-01

    Fern flora in the Matsudo campus has not been studied since 1933. To clarify existing species diversity of fernwhich is susceptible to urbanization and disturbance by planting, we made up a fern flora of the Matsudo Campus,Faculty of Horticulture, Chiba University. We found 34 taxa of ferns including 12 family, 17 genus, 31 species, 1subspecies, 1 variety, and 1 hybrid species. Thirty species including aquatic ferns such as Azolla imbricata,Salvinia natans, and Marsilea quadrifolia have disap...

  1. 铀在植物-微生物共生体系满江红体内的分布%Distribution of Uranium in the Plant_microbe Symbiotic System_Azolla Imbircata

    Institute of Scientific and Technical Information of China (English)

    胡南; 丁德馨; 潘长春; 胡劲松; 李乐; 李广悦; 王永东; 郑济芳

    2014-01-01

    采用扫描电镜( SEM)和能谱( EDS)联用分析技术,研究了铀在植物—微生物共生体系满江红中的分布,结果发现,铀在蕨类植物满江红和微生物满江红鱼腥藻中均有分布,满江红鱼腥藻中铀含量略高于蕨类植物满江红,表明了蕨类植物满江红和微生物满江红鱼腥藻都参与了去除水体中铀的过程。%The distribution of uranium in the plant_microbe symbiotic system_Azolla imbir_cata was analyzed by scanning electron microscope( SEM) and energy dispersive spectrom_eter( EDS ) hyphenated technique. The results showed that uranium distributed in both fern_Azolla imbricata and microbe_Anabena azollae. The content of uranium in Anabena azollae was slightly higher than that in Azolla imbricata. The fern_Azolla imbricata and mi_crobe_Anabena azollae had a synergistic effect on the process of removing uranium from the water.

  2. STS-109 Flight Day 10 Highlights

    Science.gov (United States)

    2002-01-01

    Footage shows the view of Earth from the Columbia Orbiter. A video conference of the crew members of STS-109 (Commander Scott Altman, Pilot Duane Carey, Payload Commander John Grunsfeld, and Mission Specialists Nancy Currie, James Newman, Richard Linnehan, and Michael Massimino) and of the International Space Station is seen as they discuss and share their experiences in space. Carey and Currie are seen as they answer questions sent from school children. Additional footage of the view of Earth is shown as the crew members answer more questions about the mission during an on-orbit interview. The view of the Hubble Space Telescope in the distance is seen. The video concludes with a view of the Galapagos Islands.

  3. Concentrations of radionuclides in terrestrial vegetation on the Hanford site of potential interest to Native Americans

    Energy Technology Data Exchange (ETDEWEB)

    Poston, T.M.

    1995-03-01

    Concentrations of {sup 90}Sr and {sup 137}Cs in Carey`s balsamroot (Balsamorhiza careyana) and Gray`s desert parsley (Lomatium grayi) were similar to concentrations observed in other plants collected on the Hanford Site and from offsite locations surrounding the Site as part of annual Hanford Site surveillance. Observed concentrations may be attributed to historic fallout more than to Hanford Site emissions, although the observation that 200 Area plants had slightly higher concentrations of {sup 137}Cs than 100 Area plants is consistent with other monitoring data of radioactivity in soil and vegetation collected onsite. The present concentrations of {sup 90}Sr and {sup 137}Cs in balsamroot and parsley fluctuate around background levels with some of the higher observed concentrations of {sup 90}Sr found on the Fitzner/Eberhardt Arid Lands Ecology (ALE) Reserve. Analytical results and summary statistics by species and location are presented in the appendixes.

  4. THE INSTRUCTIONAL DESIGN MODEL FOR MATHEMATICS EDUCATION

    OpenAIRE

    Özdemir, Emine; UYANGÖR, Sevinç MERT

    2011-01-01

    In this study, to present an instructional model by considering the existing models of instructional design (Addie, ARCS Motivation, Dick and Carey, ASSURE, Seels and Glasgow, Smith and Ragan, Universal, with the elaboration theory of Gerlach and Ely design models) with the nature of mathematics education and to reveal analysis, design, development, implementation, evaluation, and to revise levels with lower levels of the instructional design model were aimed. In this study, the qualitative c...

  5. The rules of pork? The impact of electoral systems on legislators’ behaviour in Honduras

    OpenAIRE

    Muñoz Portillo, Juan Manual

    2013-01-01

    Carey and Shugart (1995) suggest that under closed-list proportional representation (CLPR) legislators are more likely to seek votes based on their personal attributes as the number of seats per constituency (known as district magnitude or simply as M) decreases. By contrast, in open-list proportional representation (OLPR) the incentives for legislators to seek votes based on their personal reputation should increase as M increases. I test these scholars’ predictions and argue that regardl...

  6. Sound / Märt Milter

    Index Scriptorium Estoniae

    Milter, Märt

    1998-01-01

    Uutest plaatidest Mötley Crüe "Greatest Hits", Mariah Carey "# 1s", Pearl Jam "Live On Two Legs", Linda McCartney "Wide Prairie", Method Man "Tical 2000 : Judgement Day", Nada Surf "The Proximity Effect", Stina Nordenstam "People Are Strange", Portishead "Roseland NYC Live", Maggie Reilly "There and Back Again", Ǹ Sync "The Winter Album", Terminaator "Singapur", Zucchero "Bluesugar", George Michael "Ladies & Gentlemen".Best Of" ja Eric B & Rakim "Paid In Full.The Platinum Edition"

  7. Failure to learn from feedback underlies word learning difficulties in toddlers at risk for autism

    OpenAIRE

    Bedford, R.; GLIGA, T.; Frame, K.; HUDRY, K.; CHANDLER, S; Johnson, M.H.; Charman, T; ,

    2012-01-01

    Children's assignment of novel words to nameless objects, over objects whose names they know (mutual exclusivity; ME) has been described as a driving force for vocabulary acquisition. Despite their ability to use ME to fast-map words (Preissler & Carey, 2005), children with autism show impaired language acquisition. We aimed to address this puzzle by building on studies showing that correct referent selection using ME does not lead to word learning unless ostensive feedback is provided on the...

  8. From Headline to Hard Grind: The Importance of Understanding Public Administration in Achieving Health Outcomes Comment on “Understanding the Role of Public Administration in Implementing Action on the Social Determinants of Health and Health Inequities”

    OpenAIRE

    Janine O’Flynn

    2016-01-01

    Many public policy programs fail to translate ambitious headlines to on-the-ground action. The reasons for this are many and varied, but for public administration and management scholars a large part of the gap between ambition and achievement is the challenge associated with the operation of the machinery of government itself, and how it relates to the other parties that it relies on to fulfill these outcomes. In their article, Carey and Friel set out key reasons why public healt...

  9. Optimizing the Effects of Stress Management Interventions in HIV

    OpenAIRE

    O’Cleirigh, Conall; Safren, Steven

    2008-01-01

    Scott-Sheldon, Kalichman, Carey, and Fiedler (2008) present a thoughtful, important, and timely meta-analysis of randomized controlled trials of stress management interventions in HIV. They differentiate controlled effect sizes across classes of acute outcomes including psychological distress, psychosocial processes, biological processes (immune status, viral, and hormonal) and fatigue. The authors join Scott-Sheldon et al., in considering future directions for this type of clinical psychosoc...

  10. Parent-reported Temperament Trajectories among Infant Siblings of Children with Autism

    OpenAIRE

    del Rosario, Mithi; Gillespie-Lynch, Kristen; Johnson, Scott; Sigman, Marian; Hutman, Ted

    2014-01-01

    Temperament atypicalities have been documented in infancy and early development in children who develop autism spectrum disorders (ASD). The current study investigates whether there are differences in developmental trajectories of temperament between infants and toddlers with and without ASD. Parents of infant siblings of children with autism completed the Carey Temperament Scales about their child at 6, 12, 18, 24, and 36 months of age. Temperament trajectories of children with ASD reflected...

  11. Does Audit Quality Improve After the Implementation of Mandatory Audit Partner Rotation?

    OpenAIRE

    Gary MONROE; Sarowar HOSSAIN

    2013-01-01

    We investigate whether audit partner tenure and audit quality associations remain significant after the implementation of mandatory audit partner rotation. Carey and Simnett (2006) report a significant negative association between long audit partner tenure and the propensity to issue qualified going-concern opinions for financially distressed companies. However, their study uses data from a period when there was no restriction on the length of audit partner tenure, i.e., from a period before ...

  12. Role of male partners in the prevention of mother-to-child HIV transmission

    OpenAIRE

    Osoti A; Han H; Kinuthia J; Farquhar C

    2014-01-01

    Alfred Osoti,1–3 Hannah Han,4 John Kinuthia,1,5 Carey Farquhar3,4,6 1Department of Obstetrics and Gynecology, University of Nairobi, Nairobi, Kenya; 2Department of Obstetrics and Gynecology, AIC Kijabe Hospital, Kijabe, Kenya; 3Department of Epidemiology, 4Department of Global Health, University of Washington, Seattle, USA; 5Department of Obstetrics and Gynecology, Kenyatta National Hospital, Nairobi, Kenya; 6Department of Medicine, University of Washington, Seattle, USA Abstract: Ther...

  13. Role of male partners in the prevention of mother-to-child HIV transmission

    OpenAIRE

    Farquhar, Carey

    2014-01-01

    Alfred Osoti,1–3 Hannah Han,4 John Kinuthia,1,5 Carey Farquhar3,4,6 1Department of Obstetrics and Gynecology, University of Nairobi, Nairobi, Kenya; 2Department of Obstetrics and Gynecology, AIC Kijabe Hospital, Kijabe, Kenya; 3Department of Epidemiology, 4Department of Global Health, University of Washington, Seattle, USA; 5Department of Obstetrics and Gynecology, Kenyatta National Hospital, Nairobi, Kenya; 6Department of Medicine, University of Washington, Seattle, USA Abstract: ...

  14. The impact of nutritional choices on global warming and policy implications: examining the link between dietary choices and greenhouse gas emissions

    OpenAIRE

    Joyce, Andrew

    2014-01-01

    Andrew Joyce,1 Jonathan Hallett,2 Toni Hannelly,2 Gemma Carey3 1Centre for Social Impact Swinburne, Swinburne University of Technology, Hawthorn, VIC, Australia; 2School of Public Health, Curtin University, Bentley, WA, Australia; 3National Centre for Epidemiology and Population Health, The Australian National University, Canberra, ACT, Australia Abstract: Research over the past 10 years has illustrated an important connection between dietary choices, the food systems required to produce the...

  15. Identification of a lipid-anchored heparan sulfate proteoglycan in Schwann cells

    OpenAIRE

    1990-01-01

    Schwann cells synthesize both hydrophobic and peripheral cell surface heparan sulfate proteoglycans (HSPGs). Previous analysis of the kinetics of radiolabeling suggested the peripheral HSPGs are derived from the membrane-anchored forms (Carey, D., and D. Evans. 1989. J. Cell Biol. 108:1891-1897). Peripheral cell surface HSPGs were purified from phytic acid extracts of cultured neonatal rat sciatic nerve Schwann cells by anion exchange, gel filtration, and laminin-affinity chromatography. Appr...

  16. THE ROLE OF COMPUTER AND INTERNET ACCESS IN BUSINESS STUDENTS' ACCEPTANCE OF E-LEARNING TECHNOLOGY

    OpenAIRE

    Henderson, Ronda Baskerville

    2005-01-01

    This study was based on previous research that investigated the disparity or gap between those who have access to computers and the Internet and those who do not (Hoffman and Novak, 1998; NTIA, 1999b; Carey, Chisholm and Irwin, 2002; Vail, 2003 Zeliff, 2004; Glenn, 2005). The Technology Acceptance Model developed by Davis, Bagozzi, and Warshaw (1989) was used to investigate whether computer and Internet access influenced the acceptance of e-learning technology tools such as Blackboard and the...

  17. Some Physiological Adaptations to Drought in Xerohalophytic Plants Inhabiting Two Oases in Western Desert of Egypt

    International Nuclear Information System (INIS)

    Under natural drought, some physiological parameters were measured in some wild species inhabiting the western desert of Egypt. Seasonal changes of nitrogen metabolites and Na/K ratio were detected in the investigated species. Effect of seasons, species, and their interaction played an important role on total free amino acids, soluble proteins and Na/K ratio at two oases (Dakhla and Kharga). Species diversity showed more effective variable in regulating such metabolites at Kharga oasis. Plants responded to their environment in two ways, either by increasing their water binding molecules or by preventing the formation of amino acids into proteins. Some of the halophytic and xerophytic species may adjust osmotically to stress by the contribution of nitrogen metabolites. On the other hand, Zygophyllum coccineum, the succulent plant, may adapt to environmental conditions through the accumulation of free amino acids. Correlation analysis between Na+/K+ ratio with free amino acids, soluble proteins and water content in Tamarix aphylla, Salsola imbricata, Balanites aegyptiaca, Trichodesma africanum, and Z. coccineum (Kharga) indicated changes in ionic fraction or accumulating soluble organic compounds which were osmotically active and contribute to osmotic adjustment. Correlations were found between chlorophyll content, ionic and nitrogen metabolites. In Acacia nilotica, Suaeda monoica and Z. coccineum at Dakhla oasis, changes in soluble proteins or ionic ratio could be caused by chlorophyll response to stress, while S. imbricata and T. aphylla may control cellular protein contents. On the other hand, the sharing of both free amino acids and ionic fraction may play an important role of osmoregulation in S. imbricata, Citrullus colocynthis and Z. coccineum at Kharga oasis. (author)

  18. Investigation of stingray spines by Fourier transform infrared spectroscopy analysis to recognize functional groups

    Institute of Scientific and Technical Information of China (English)

    Muthuramalingam Uthaya Siva; Mohideen Abdul Badhul Haq; Deivasigamani Selvam; Ganesan Dinesh Babu; Rathinam Bakyaraj

    2013-01-01

    Objective: To investigate functional groups of toxic spines in stingray by Fourier transform infrared spectroscopic analysis.Methods:sephen were centrifuged at 6000 r/min for 10 min. The supernatant was collected and preserved separately in methanol, ethanol, chloroform, acetone (1:2) and then soaked in the mentioned solvents for 48 h. Then extracts were filtered and used for Fourier transform infrared spectroscopic analysis.Results:The venom extract of Himantura gerrardi, Himantura imbricata and Pastinachus and random coiled secondary structure. The presence of O-H stretch, C=O stretch, C-H stretch, N-H deformation, O-H deformation and C-O stretch in the sample aligned with standard bovine serum albumin. The influence of functional groups within the molecule was because of the impact of preferred spatial orientation, chemical and physical interaction on the molecule. In conclusion, compared to bovine serum albumin, Himantura imbricata consists of two C=O stretch, are involved in the hydrogen bonding that takes place between the different elements of secondary structure.Conclusions:The results identified that the presence of free amino acids and protein having β-sheet medicine not available for treatment against injuries causing stingray. Therefore, it's the baseline study, to motivate further process and produce effective antibiotics. The venom of poisonous animals has been extensively studied, since standard.

  19. Investigation of stingray spines by Fourier transform infrared spectroscopy analysis to recognize functional groups

    Directory of Open Access Journals (Sweden)

    Muthuramalingam Uthaya Siva

    2013-10-01

    Full Text Available Objective: To investigate functional groups of toxic spines in stingray by Fourier transform infrared spectroscopic analysis. Methods: The venom extract of Himantura gerrardi, Himantura imbricata and Pastinachus sephen were centrifuged at 6 000 r/min for 10 min. The supernatant was collected and preserved separately in methanol, ethanol, chloroform, acetone (1:2 and then soaked in the mentioned solvents for 48 h. Then extracts were filtered and used for Fourier transform infrared spectroscopic analysis. Results: The results identified that the presence of free amino acids and protein having β-sheet and random coiled secondary structure. The presence of O-H stretch, C=O stretch, C-H stretch, N-H deformation, O-H deformation and C-O stretch in the sample aligned with standard bovine serum albumin. The influence of functional groups within the molecule was because of the impact of preferred spatial orientation, chemical and physical interaction on the molecule. In conclusion, compared to bovine serum albumin, Himantura imbricata consists of two C=O stretch, are involved in the hydrogen bonding that takes place between the different elements of secondary structure. Conclusions: The venom of poisonous animals has been extensively studied, since standard medicine not available for treatment against injuries causing stingray. Therefore, it's the baseline study, to motivate further process and produce effective antibiotics.

  20. Higher-order volatility: dynamics and sensitivities

    OpenAIRE

    Carey, Alexander

    2006-01-01

    In this addendum to Carey (2005), we draw several more analogies with the Black-Scholes model. We derive the characteristic function of the underlying log process as a function of the volatilities of all orders. Option prices are shown to satisfy an infinite-order version of the Black-Scholes partial differential equation. We find that in the same way that the option sensitivity to the cost of carry is related to delta and vega to gamma in the Black-Scholes model, the option sensitivity to j-...

  1. Bipartisan proposal calls for SGR repeal

    OpenAIRE

    Robbins RA

    2013-01-01

    No abstract available. Article truncated at 150 words. The Washington Post (11/1, Carey) reports a bipartisan group of legislators has agreed on a framework replacing the “problematic” Medicare payment formula in an attempt to end the annual Sustainable Growth Rate (SGR) or “doc fix” debate. The current system is set to reduce Medicare physician payments by approximately 25% on Jan. 1 without Congressional intervention. Senate Finance Committee Chairman Max Baucus (D-MT) and House Ways and Me...

  2. Presence and significance of chytrid fungus Batrachochytrium dendrobatidis and other amphibian pathogens at warm-water fish hatcheries in southeastern North America

    Science.gov (United States)

    Green, D. Earl; Dodd, C. Kenneth, Jr.

    2007-01-01

    Amphibian populations and species are declining or disappearing from many regions throughout the world (Stuart et al. 2004). No single cause has been demonstrated, although a number of emerging infectious diseases have been suggested as primary etiologic agents (Berger et al. 1998; Daszak et al. 2003; Lips et al. 2006). Several factors, including climate change, parasite infestation or compromised immune systems may interact locally or regionally to threaten species and populations (Carey and Bryant 1995; Parris and Beaudoin 2004; Pounds et al. 2006). Still, the disease model of amphibian decline may not be universally applicable (Daszak et al. 2005; McCallum 2005).

  3. 各向异性网格下具有数值积分的非协调有限元逼近%Nonconforming Finite Element Approximation on Anisotropic Meshes with Numerical Quadrature

    Institute of Scientific and Technical Information of China (English)

    杨乔; 石东洋

    2006-01-01

    In this paper we mainly discuss the nonconforming finite element method for second order elliptic boundary value problems on anisotropic meshes. By changing the discretization form(i.e., by use of numerical quadrature in the procedure of computing the left load ), we obtain the optimal estimate O(h), which is as same as in the traditional finite element analysis when the load f∈H1(Ω)∩C0(Ω) which is weaker than the previous studies. The results obtained in this paper are also valid to the conforming triangular element and nonconforming Carey's element.

  4. El Cambio Conceptual en Psicología: ¿Cómo Explicar la Novedad Cognoscitiva? Conceptual Change in Psychology of Development: ¿How to Explain Cognitive Novelty?

    OpenAIRE

    José Antonio Castorina

    2006-01-01

    Este trabajo examina críticamente la teoría del Bootstrapping, formulada por Susan Carey para explicar el cambio conceptual en la psicología del desarrollo. En primer lugar, se exponen los resultados de sus investigaciones sobre el conocimiento biológico de los niños, luego se analiza la utilización de la filosofía de la ciencia en sus estudios; a continuación se establecen las modalidades del cambio conceptual. Más tarde, se presenta centralmente la dinámica del proceso de bootstrapping para...

  5. Index theory, gerbes, and hamiltonian quantization

    CERN Document Server

    Carey, A L; Murray, M; Carey, Alan; Mickelsson, Jouko; Murray, Michael

    1997-01-01

    We give an Atiyah-Patodi-Singer index theory construction of the bundle of fermionic Fock spaces parametrized by vector potentials in odd space dimensions and prove that this leads in a simple manner to the known Schwinger terms (Faddeev-Mickelsson cocycle) for the gauge group action. We relate the APS construction to the bundle gerbe approach discussed recently by Carey and Murray, including an explicit computation of the Dixmier-Douady class. An advantage of our method is that it can be applied whenever one has a form of the APS theorem at hand, as in the case of fermions in an external gravitational field.

  6. Pion, Kaon, Proton and Antiproton Production in Proton-Proton Collisions

    Science.gov (United States)

    Norbury, John W.; Blattnig, Steve R.

    2008-01-01

    Inclusive pion, kaon, proton, and antiproton production from proton-proton collisions is studied at a variety of proton energies. Various available parameterizations of Lorentz-invariant differential cross sections as a function of transverse momentum and rapidity are compared with experimental data. The Badhwar and Alper parameterizations are moderately satisfactory for charged pion production. The Badhwar parameterization provides the best fit for charged kaon production. For proton production, the Alper parameterization is best, and for antiproton production the Carey parameterization works best. However, no parameterization is able to fully account for all the data.

  7. The νMSM and muon to electron conversion experiments

    International Nuclear Information System (INIS)

    We review briefly the different constraints on the three right-handed neutrinos of the νMSM, an extension of the Standard Model that can explain baryon asymmetry, dark matter and neutrino masses. We include in the discussion the proposed experiments on muon to electron conversion Mu2e (Carey et al., Mu2e Collaboration, 2012), COMET and PRISM (Hungerford, COMET Collaboration, AIP Conf Proc 1182:694, 2009; Cui et al., COMET Collaboration, 2012). We find that the expected sensitivity of these experiments is weaker by about two orders of magnitude than the constraints coming from successful baryogenesis.

  8. Bibliografía

    OpenAIRE

    2015-01-01

    A. LITERATURA GENERAL 1. Libros Bethell, Leslie (editora), Historia de América Latina, Varios volúmenes, Barcelona, Cambridge University Press-Editorial Crítica, 1992. Bobbio. Norberto, El futuro de la democracia, México, Fondo de Cultura Económica, 1986. —, Contribución a la teoría del derecho, Madrid, Editorial Debate, 1990. Cardoso, Fernando H. y Enzo Faletto, Dependencia y desarrollo en América Latina, México, Siglo xxi Editores, 14a. ed., 1978. Carey, John y Matthew Shugart, Presidents a...

  9. The Contextual Nature of Scientists' Views of Theories, Experimentation, and Their Coordination

    Science.gov (United States)

    Sandoval, William A.; Redman, Elizabeth H.

    2015-11-01

    Practicing scientists' views of science recently have become a topic of interest to nature of science researchers. Using an interview protocol developed by Carey and Smith that assumes respondents' views cohere into a single belief system, we asked 15 research chemists to discuss their views of theories and experimentation. Respondents expressed a range of ideas about science during interviews, but in ways that defied assignment to a unitary, coherent belief system. Instead, scientists expressed more or less constructivist ideas depending upon the questions asked. We interpret our findings to suggest that efforts to categorize such conceptions at best oversimplify, and at worst misconstrue, people's views about science and how such ideas might develop.

  10. Local Resources and National Cultural Digital Platform Construction in Colleges in National Regions%民族地区高校资源与民族文化建设

    Institute of Scientific and Technical Information of China (English)

    陈小玲

    2012-01-01

    The article to Carey university for example, from the age of the media interpretation in colleges in national regions local resources and national culture construction of major significance of digital platform, and emphatically expounds the local resources institute of Carey and national culture construction of digital platform, and sums up the entire media era in colleges in national regions local resources and national cultural digital platform construction security measures.%文章以凯里学院为例,从诠释全媒体时代民族地区高校地方资源与民族文化数字平台建设重大意义入手,阐述了凯里学院的地方资源与民族文化数字平台建设,进而对全媒体时代民族地区高校地方资源与民族文化数字平台建设保障措施进行了探讨。

  11. El Cambio Conceptual en Psicología: ¿Cómo Explicar la Novedad Cognoscitiva? Conceptual Change in Psychology of Development: ¿How to Explain Cognitive Novelty?

    Directory of Open Access Journals (Sweden)

    José Antonio Castorina

    2006-11-01

    Full Text Available Este trabajo examina críticamente la teoría del Bootstrapping, formulada por Susan Carey para explicar el cambio conceptual en la psicología del desarrollo. En primer lugar, se exponen los resultados de sus investigaciones sobre el conocimiento biológico de los niños, luego se analiza la utilización de la filosofía de la ciencia en sus estudios; a continuación se establecen las modalidades del cambio conceptual. Más tarde, se presenta centralmente la dinámica del proceso de bootstrapping para las ideas biológicas y se la extiende a la adquisición de los números enteros. Finalmente, se evalúa el alcance y el significado del bootstrapping respecto de la psicología cognitiva y la dialéctica piagetiana.The aim of this paper is to critically review the theory of Bootstrappping as stated by Susan Carey in order to explain conceptual change in psychology of development. The first section explains the results of her research on biological theories of childhood, then, the use of philosophy of science in her investigations. Next, the various forms of conceptual change are assessed. Subsequently, the paper particularly presents the dynamics of bootstrapping process for biological ideas and its extent to the acquisition of whole numbers. Finally, the importance and meaning of bootstrapping is analyzed with regard to cognitive psychology and Piagetian dialectics.

  12. Stable isotopes in bivalves as indicators of nutrient source in coastal waters in the Bocas del Toro Archipelago, Panama.

    Science.gov (United States)

    Graniero, Lauren E; Grossman, Ethan L; O'Dea, Aaron

    2016-01-01

    To examine N-isotope ratios ((15)N/(14)N) in tissues and shell organic matrix of bivalves as a proxy for natural and anthropogenic nutrient fluxes in coastal environments, Pinctada imbricata, Isognomon alatus, and Brachidontes exustusbivalves were live-collected and analyzed from eight sites in Bocas del Toro, Panama. Sites represent a variety of coastal environments, including more urbanized, uninhabited, riverine, and oceanic sites. Growth under differing environmental conditions is confirmed by δ (18)O values, with open ocean Escudo de Veraguas shells yielding the highest average δ (18)O (-1.0‰) value and freshwater endmember Rio Guarumo the lowest (-1.7‰). At all sites there is no single dominant source of organic matter contributing to bivalve δ (15)N and δ (13)C values. Bivalve δ (15)N and δ (13)C values likely represent a mixture of mangrove and seagrass N and C, although terrestrial sources cannot be ruled out. Despite hydrographic differences between end-members, we see minimal δ (15)N and δ (13)C difference between bivalves from the river-influenced Rio Guarumo site and those from the oceanic Escudo de Veraguas site, with no evidence for N from open-ocean phytoplankton in the latter. Populated sites yield relative (15)N enrichments suggestive of anthropogenic nutrient input, but low δ (15)N values overall make this interpretation equivocal. Lastly, δ (15)N values of tissue and shell organic matrix correlate significantly for pterioideans P. imbricata and I. alatus. Thus for these species, N isotope studies of historical and fossil shells should provide records of ecology of past environments. PMID:27547578

  13. Stable isotopes in bivalves as indicators of nutrient source in coastal waters in the Bocas del Toro Archipelago, Panama

    Science.gov (United States)

    Grossman, Ethan L.; O’Dea, Aaron

    2016-01-01

    To examine N-isotope ratios (15N/14N) in tissues and shell organic matrix of bivalves as a proxy for natural and anthropogenic nutrient fluxes in coastal environments, Pinctada imbricata, Isognomon alatus, and Brachidontes exustusbivalves were live-collected and analyzed from eight sites in Bocas del Toro, Panama. Sites represent a variety of coastal environments, including more urbanized, uninhabited, riverine, and oceanic sites. Growth under differing environmental conditions is confirmed by δ18O values, with open ocean Escudo de Veraguas shells yielding the highest average δ18O (−1.0‰) value and freshwater endmember Rio Guarumo the lowest (−1.7‰). At all sites there is no single dominant source of organic matter contributing to bivalve δ15N and δ13C values. Bivalve δ15N and δ13C values likely represent a mixture of mangrove and seagrass N and C, although terrestrial sources cannot be ruled out. Despite hydrographic differences between end-members, we see minimal δ15N and δ13C difference between bivalves from the river-influenced Rio Guarumo site and those from the oceanic Escudo de Veraguas site, with no evidence for N from open-ocean phytoplankton in the latter. Populated sites yield relative 15N enrichments suggestive of anthropogenic nutrient input, but low δ15N values overall make this interpretation equivocal. Lastly, δ15N values of tissue and shell organic matrix correlate significantly for pterioideans P. imbricata and I. alatus. Thus for these species, N isotope studies of historical and fossil shells should provide records of ecology of past environments. PMID:27547578

  14. E-Area Vault Concrete Material Property And Vault Durability/Degradation Projection Recommendations

    Energy Technology Data Exchange (ETDEWEB)

    Phifer, M. A.

    2014-03-11

    Subsequent to the 2008 E-Area Low-Level Waste Facility (ELLWF) Performance Assessment (PA) (WSRC 2008), two additional E-Area vault concrete property testing programs have been conducted (Dixon and Phifer 2010 and SIMCO 2011a) and two additional E-Area vault concrete durability modeling projections have been made (Langton 2009 and SIMCO 2012). All the information/data from these reports has been evaluated and consolidated herein by the Savannah River National Laboratory (SRNL) at the request of Solid Waste Management (SWM) to produce E-Area vault concrete hydraulic and physical property data and vault durability/degradation projection recommendations that are adequately justified for use within associated Special Analyses (SAs) and future PA updates. The Low Activity Waste (LAW) and Intermediate Level (IL) Vaults structural degradation predictions produced by Carey 2006 and Peregoy 2006, respectively, which were used as the basis for the 2008 ELLWF PA, remain valid based upon the results of the E-Area vault concrete durability simulations reported by Langton 2009 and those reported by SIMCO 2012. Therefore revised structural degradation predictions are not required so long as the mean thickness of the closure cap overlying the vaults is no greater than that assumed within Carey 2006 and Peregoy 2006. For the LAW Vault structural degradation prediction (Carey 2006), the mean thickness of the overlying closure cap was taken as nine feet. For the IL Vault structural degradation prediction (Peregoy 2006), the mean thickness of the overlying closure cap was taken as eight feet. The mean closure cap thicknesses as described here for both E-Area Vaults will be included as a key input and assumption (I&A) in the next revision to the closure plan for the ELLWF (Phifer et al. 2009). In addition, it has been identified as new input to the PA model to be assessed in the ongoing update to the new PA Information UDQE (Flach 2013). Once the UDQE is approved, the SWM Key I

  15. Long-term performance of the steel-cement interface in CO2 sequestration wells

    Science.gov (United States)

    Carey, J. W.; Han, J.

    2011-12-01

    Long-term performance of CO2 storage reservoirs will require that wells (injection, monitoring, and pre-existing) continue to provide isolation of the buoyant CO2 plume. Short-term leakage concerns are driven by the quality of the well completions, particularly placement of Portland cement. However, operational and CO2-injection induced stresses in the reservoir may introduce small defects in the well isolation system, allowing migration of small quantities of CO2 and brine. Evidence for such leaks has been observed in a CO2-enhanced oil recovery well (Carey et al. 2007) and in a natural CO2 reservoir (Crow et al. 2010). The key question in long-term performance is whether these leaks will grow as wellbore materials degrade or whether carbonate precipitation reactions will self-heal the defects. In this study, we focus on the interface between steel casing and Portland cement. In a properly completed well, Portland cement provides a protective, alkaline environment for carbon steel that precludes the possibility of external corrosion. The protective cement can be damaged either by the formation of small gaps at the interface, known as microannuli, or by the carbonation of cement which eliminates cement alkalinity. To investigate these issues, we conducted experiments on cement-steel composites at conditions ranging from atmospheric to high-pressure to determine the susceptibility of steel to corrosion in the presence of well-bonded cement, carbonated cement, and cement separated from the steel by varying gap distances. The presence of cement greatly reduces corrosion rates of steel because an iron carbonate scale forms rapidly and provides a mass-transfer barrier. Similarly, a small gap at the cement-steel interface provides a mass-transfer barrier. Our results show that scale formation provides a more significant barrier to corrosion and that even small gaps (oxide layer on steel is destroyed but then fall again as a carbonate scale forms. The degree of protection

  16. STS-109 Flight Day 9 Highlights

    Science.gov (United States)

    2002-01-01

    Footage shows the Hubble Space Telescope (HST) against a backdrop of Earth. The grappling of the HST with the robotic arm is seen, and payload bay cameras show different angles of the HST in its deploy orientation. The deployment of the HST from the Columbia Orbiter is seen, followed by footage of the HST flying freely over the Earth's horizon. All seven crew members are gathered together during an in-flight interview as they answer questions about the mission, the experiences of being in space, and their lives as astronauts. Additional footage of the crew working during the deployment of the HST is shown. Duane Carey is seen interviewing Nancy Currie with Internet questions from young students. The video concludes with the view from Columbia of the Pacific Ocean, the coast of Northwestern Chile, and a sunrise.

  17. Fleshing gender out: male fantasies and female body issues in Peter Carey’s “Peeling”

    OpenAIRE

    Biscaia, Maria Sofia Pimentel

    2010-01-01

    Em “Peeling” Peter Carey retrata a relação que um homem mais velho impõe sobre uma enfermeira de abortos. Esta mulher remodela bonecas como criaturas brancas, tornando-as representações simbólicas da mutilação implícita para a construção social do “feminino” e da própria morte. Proponho “pelar” algumas das camadas interpretativas do texto: o monologismo “Mulher”, fantasias masturbatórias masculinas, desejo homo-erótico reprimido, e a abjecção ameaçadora à identidade de género. In “Peeling”...

  18. Concentrations of radionuclides in terrestrial vegetation on the Hanford site of potential interest to Native Americans

    International Nuclear Information System (INIS)

    Concentrations of 90Sr and 137Cs in Carey's balsamroot (Balsamorhiza careyana) and Gray's desert parsley (Lomatium grayi) were similar to concentrations observed in other plants collected on the Hanford Site and from offsite locations surrounding the Site as part of annual Hanford Site surveillance. Observed concentrations may be attributed to historic fallout more than to Hanford Site emissions, although the observation that 200 Area plants had slightly higher concentrations of 137Cs than 100 Area plants is consistent with other monitoring data of radioactivity in soil and vegetation collected onsite. The present concentrations of 90Sr and 137Cs in balsamroot and parsley fluctuate around background levels with some of the higher observed concentrations of 90Sr found on the Fitzner/Eberhardt Arid Lands Ecology (ALE) Reserve. Analytical results and summary statistics by species and location are presented in the appendixes

  19. N,N′-Dicyclohexylnaphthalene-1,8;4:5-dicarboximide

    Directory of Open Access Journals (Sweden)

    Manju Rajeswaran

    2008-09-01

    Full Text Available The title compound, C26H26N2O4, synthesized by the reaction of naphthalene-1,4,5,8-tetracarboxylic acid anhydride and cyclohexylamine, exhibits good n-type semiconducting properties. Accordingly, thin-film transistor devices comprising this compound show n-type behavior with high field-effect electron moblity ca 6 cm2/Vs [Shukla, Nelson, Freeman, Rajeswaran, Ahearn, Meyer & Carey(2008. Chem. Mater. Submitted]. The asymmetric unit comprises one-quarter of the centrosymmetric molecule in which all but two methylene C atoms of the cyclohexane ring lie on a mirror plane; the point-group symmetry is 2/m. The naphthalenediimide unit is strictly planar, and the cyclohexane rings adopt chair conformations with the diimide unit in an equatorial position on each ring.

  20. Percepción de la realidad mediática y deontología periodística: hacia un periodismo participativo acorde con una Democracia Deliberativa

    OpenAIRE

    Lamuedra Graván, María

    2012-01-01

    El trabajo que nos ocupa tiene como objetivo contribuir a una línea de investigación que teoriza e investiga sobre el tránsito desde el modelo periodístico actual hacia uno más participativo. Si cada concepción y práctica de la política lleva aparejada una concepción del periodismo y viceversa (Carey: 2000: 51), la Teoría de la Democracia Deliberativa (ver Nino, 1999 o Habermas 1991, 1998 o 1999) puede ser tomada como referencia en el ámbito de la política para situar y conceptualizar e...

  1. Disease: H00997 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available ure, scoliosis, and hearing loss. The syndrome is caused by a missense mutation in the FGFR3 gene. FGFR3 is ...a negative regulator of bone growth, and its mutations are well known to cause a variety of short-limbed bon...ates that abnormal FGFR3 signaling can cause human anomalies by promoting as well as inhibiting endochondral...2261) Regulation of actin cytoskeleton FGFR3 [HSA:2261] [KO:K05094] Mutations in FGFR3 cause... FG, Longo N, Viskochil DH, Carey JC, Bamshad MJ A novel mutation in FGFR3 causes camptodactyly, tall stature, and hearing loss (CATSHL) syndrome. Am J Hum Genet 79:935-41 (2006) ...

  2. Electoral system, pesonal votes, and party choice

    DEFF Research Database (Denmark)

    Thomsen, Søren Risbjerg

    Using local elections in Denmark as an example this paper shows that individual party choice is influenced both by individual level, municipality level, and national level characteristics. Some hypotheses about the effects of the electoral system on personal votes derived from a theory by Carey...... & Shugart (1995) are first tested using a fixed-effects model. The effect of the personal reputation of the candidates, measured by personal votes, on party choice is then tested using a multilevel multinomial logit model suggested by Rabe-Hesketh and Skrondal (2008). The paper shows that both the electoral...... system and the personal reputation of local candidates have theoretically expected effects on party choice at local elections in Denmark. The methodology can be used for cross-national studies of multilevel effects on multi-party choice....

  3. Diálogos entre Kuhn y la psicología cognitiva: algunos aportes para pensar los procesos de aprendizaje y cambio conceptual

    Directory of Open Access Journals (Sweden)

    Elizabeth Beatriz Ormart

    2008-05-01

    Full Text Available El propósito de este trabajo es mostrar la vinculación entre la obra de Kuhn y los desarrollos de la psicología cognitiva. Hemos podido diferenciar dos tipos de procesos cognitivos presentes en el modelo epistemológico de Kuhn e investigados por la psicología cognitiva. Uno es el proceso de adquisición de conceptos, propio del período de ciencia normal; el otro, es un cambio conceptual adecuado para explicar el período de revolución científica. En el primer grupo encontramos el trabajo de Eleonor Rosch acerca de los prototipos. En el segundo, ubicamos la teoría de Carey sobre el bootstrapping y de Nersessian de la modelización constructiva.

  4. Contemplating the Future: Building Student Resilience in Climate Change Education

    Science.gov (United States)

    Allison, E.

    2015-12-01

    Climate change research has largely focused on the biophysical, economic, and political aspects of the phenomenon, its projected impacts, and the possibilities for adaptation (Carey et al. 2014; Castree et al. 2014). In the classroom, too, climate change is generally presented as a scientific, technological, political, and economic challenge. However, defining climate change as physical challenge, divorced from its cultural causes and responses, forecloses some pathways of inquiry and limits the possibilities for adaptation (Adger et al. 2013). Recent perspectives by the environmental historian Mark Carey and colleagues (2014) and by the geographer Noel Castree and colleagues (2014) contend that ethnographic, narrative, social scientific, and humanistic insights are necessary additions to the climate change policy process and can contribute to deliberate, resilient responses to climate change. Among the humanistic insights needed are strategies and practices to maintain fortitude and persistence in the midst of dispiriting ecological trends. Students facing the "gloom and doom" of climate change data in environmental studies courses can experience negative states of mind such as denial, despair, burnout, and grief. Emerging research, however, demonstrates how contemplative practice can shift consciousness and promote resilience. Contemplative practices are those that consciously direct calm, focused attention. Such practices can build internal resilience, by promoting a greater sense of calm and well-being, decreasing stress, and sharpening focus and concentration. In addition, contemplative practices improve relationships with other people, through increasing compassion and flexibility in thinking. They also strengthen relationships with the surrounding world by increasing our ability to question, explore, and cope with rapid change and complexity. This presentation provides a context for incorporating contemplative practices, including mindfulness exercises

  5. International Perspectives of Ethical Approval: The New Zealand scene

    Directory of Open Access Journals (Sweden)

    Antoinette McCallin Ph.D.

    2010-12-01

    Full Text Available The paper “Navigating the process of ethical approval” (Carey, 2010 raises many issues about the influence Institutional Ethics Committees have on research methodology and what can or cannot take place in research. Carey draws attention to the ethical challenges classic grounded theory researchers face when an ethical proposal that follows the principles of the methodology is presented to an Ethics Committee, whose main responsibility is the protection of participants. Ethics committees not only guide researchers on acceptable ethical practice, but are charged with monitoring ethical standards and ensuring researchers act in accordance with professional expectations for researchers within the jurisdiction. These committees aim to ensure consistency of ethical practice in research. While there is generally some flexibility in the review process researchers often find ethical requirements constraining, as guidelines are primarily prescriptive and are designed to ensure consistency in the application of universal ethical principles in research. In New Zealand, consistency includes paying attention to broader socio-cultural responsibilities to society that includes promoting awareness of the Code of Health and Disability Services Consumer Rights 1996, the Health Information Privacy Code 1994, and promoting ethical practices which involve Maori (the local indigenous people in research proposals as much as possible (Ministry of Health, 2006. So while researchers in training assume that their prime interest concerns the management of a research topic and methodology, they quickly find out that ethical guidelines influence research design. Even though there is an international code of ethics (Universal Declaration of Human Rights, 2005 that defines ethical standards for researchers around the world, each country has its own specific requirements depending on the context. In this paper, ethical drivers in the New Zealand context are outlined and

  6. 水生植物的生态敏感度研究%A Study on Ecological Sensitivities of Several Plants

    Institute of Scientific and Technical Information of China (English)

    李宏文; Chien,PaulK

    2001-01-01

    By measuring ecological effects of several aquatic plants on heavy metals of Pb and Zn,it has been shown that the ecological sensitivities of plants on danger environmental factors are quite different between organism level and molecular level.According to CAT activity,an order for CAT- sensitivities of plants was found to be:Alternanthera philoxeroides>Spirodella polyrrhiza>Azolla imbricata>Hydrilla verticillata>Potamogeton malaianus.This result was contrary to the species- sensitivities based on injured levels of plants,such as:Potamogeton malaianus>Hydrilla verticillata>Azolla imbricata>Spirodella polyrrhiza>Alternanthera philoxeroides.The ecological sensitivity introduced into ecological planning has been recognized as index for delimiting ecological sensitive areas.The different idea of CAT- sensitivity and species- sensitivity may be applied to different areas with different ecological stabilities and different protecting needs.%通过人工室外玻璃水槽养殖试验,研究了几种水生植物在两个不同的生态水平上对重金属 Pb和 Zn的生态效应。结果发现,水生植物对有害环境因子的生态敏感度,在植物组织水平上与在分子水平上的表现截然相反。根据植物体内过氧化氢酶( CAT)的活性反应来排序,几种水生植物的( CAT)敏感度为:水花生 >紫背萍 >满江红 >轮叶黑藻 >马来眼子菜。这与植物受 Pb和 Zn伤害后的形态症状表现的生态敏感度(种敏感度)顺序完全相反。把不同的生态敏感度概念( CAT敏感度和种敏感度)引入生态规划,作为生态敏感区域划定的指标。对具有不同敏感等级和不同的保护水平要求的生态区域,应采用不同的生态敏感度,即 CAT敏感度或种敏感度。

  7. Phytochemicals with radioprotection and radio-sensitizing potential

    International Nuclear Information System (INIS)

    Ionizing radiation induces DNA damage and are harmful to mankind. They act through free radical generation, which target the double bonds of all cellular macromolecules. The radiation damage may be classified as probabilistic or deterministic, depending on the dose of radiation exposure. Since radiation affects multiple organs so those drugs which protect many organs, would be more beneficial. In this process herbal extracts, which are cocktail of several phyto-chemicals, would be more promising. Initially sulphur containing bio-molecules were identified as radio-protector, but now many secondary metabolites from plant kingdom, have been reported to be radio-protective. They have different mechanism of action, but most of them either prevent the FR induced DNA damage or accelerate the DNA repair process. Aminofostine, WR-2721, 159243, 2926 are some of the examples. However they have limited use because of associated cytotoxicity. Eicosanoids, topoisornerase inhibitors (e.g. camptothecin, topotecan), and the hypoxia-activated anthraquinone AQ4N have shown radioprotecting potential. Several plant products, derived from Tulsi, Vinca alkaloids, taxans, turmeric, Rubia cordifolia, Semecarpus anacardium and several plants rich in polyphenols and flavones have shown hemotherapeutic potential. Similarly, Hippophae, rhodiola imbricata, Podophyllum hexandrum, Ocimum sancturn, Plumbago zeylanica etc have shown radioprotection. Rubia cordifolia has shown both chemotherapeutic and radioprotective property in rats and A-431 cells. Similarly Semecarpus anacardium extract has shown cell cycle arrest in DU-145 cells. (author)

  8. 满江红多胺氧化酶的抽提与初步纯化

    Institute of Scientific and Technical Information of China (English)

    何生根; 欧利叶; 等

    1998-01-01

    报告了满江红(Azolla imbricata)多胺氧化酶提取条件初步纯化的研究结果,以0.1mol/L磷酸缓冲液为介质抽提该酶时的最适PH为6.5,添加0.10-0.15mol/L NaCl和2%-4%(质量体积比)PVP可改善抽提效果,用硫酸铵沉淀法、PEG-6000沉淀法和丙酮沉淀法分别对酶抽提液进行初步纯化,发现丙酮沉淀法化效果最优,用1.2倍(体积比)冷丙酮(-15℃)沉淀时可提纯该酶8.92倍,产率达74.6%。

  9. 满江红多胺氧化酶部分特性研究

    Institute of Scientific and Technical Information of China (English)

    何生根; 黄学林; 等

    1996-01-01

    本文报告了满江红(Azolla imbricata)多胺氧化酶特性的一些研究结果,该酶的最适底物为spd(亚精胺),其次为spm(精胺)(酶活性约为以spd为底物时的405),而对put(腐胺)和cad(尸胺)两种二胺几乎不氧化;在50-70℃或PH4-10的范围内均有活性,以spd和spm作底物时的最适PH最分别为6.5和5.5;该酶经10mmol/L的EDTA处理后酶活性仍能完全保持,说明其催化功能的实现可能无需金属离子的参与。另外,金属离子Ca2+,Mg2+对该酶活性无明显影响,但10mol/L的CuSO4可抑制约20%的活性。

  10. A suggested local regions in the Southern Gulf of Mexico using a diatom database (1979-2002) and oceanic hidrographic features.

    Science.gov (United States)

    Licea, Sergio; Zamudio, Ma E; Moreno-Ruiz, J L; Luna, R

    2011-07-01

    A diatom data-base of 255 species obtained from 14 oceanographic cruises (14801 entries of 647 sampling sites) together with the analysis of oceanic features were used to establish four local regions in the southern Gulf of Mexico. In addition, common species for each region were designated. This study is based on the application of cluster analysis and the species frequency data. Material for this undertaking consisted of water and net samples obtained between June 1979 and December 2002. Results show that the most frequent species (> 40%) were: Asterionellopsis glacialis, Bacteriastrum delicatulum, B. hyalinum, Chaetoceros affinis, C. coarctatus, C. compresus, C. curvisetus, C. danicus, C. decipiens, C. diversus, C. lorenzianus, C. pelagicus, C. peruvianus, Coscinodiscus radiatus, Cylindrotheca closterium, Guinardia flaccida, Hemiaulus hauckii, H. membranaceus, H. sinensis, Leptocylindrus danicus, Neocalyptrella robusta, Nitzschia bicapitata, Pleurosigma diverse-striatum, Proboscia alata, Pseudo-nitzschia pungens, Pseudosolenia calcar-avis, Rhizosolenia imbricata, R. setigera, Skeletonema costatum, Thalassionema bacillare, T frauenfeldii, T nitzschioides and Thalassiosira eccentrica. The species composition for each region and season are discussed. Itis concluded that sampling site assemblages are related to oceanographic conditions. A total list of species composition is given, forty-seven species taxa being new records for this area. PMID:22315823

  11. Vegetation Analysis in the South Eastern Part in the Southern Eastern Desert of Egypt

    Directory of Open Access Journals (Sweden)

    M. Sheded

    2002-01-01

    Full Text Available The floristic elements of the study area comprises 240 species. The majority of these species (238 belong to Angiospermae, the other two species (Mushroom and Chara are belonging to Gymnospermae. A total number of species 238 Angiospermae belonging to 54 families and 155 genera. The most represented families were Graminae (4.29%, Leguminosae (11.76%, Compositae (9.2%, Cruciferae (4.6%, Zygophyllaceae (4.2%, Euphorbiaceae (3.4%, Boraginaceae (3.4% and Asclepidaceae (2.9%. Vegetation analysis in the south eastern part of the southern eastern desert of Egypt indicates the dominance of Polycarpea repens, Zygophyllum simplex, Triraphis pumilio, Astragalus eremophilus, Fagonia indica, Aizoon canariense, Caylusea hexagyna, Acacia tortilis subsp. tortilis, Aerva javanica, Aristida mutabilis, Asphodelus tenuifolius and Panicum turgidum. Seven vegetation clusters are recognized after the application of the two-way indicator species analysis (Twinspan. These clusters are named after the dominant species as follows: Indigofera spinosa-Cocculus pendulus- Peristrophe paniculata-Cucumis prophetarum-Convolvulus hystrix, Chenopodium murale, Zygophyllum simplex, Coelachyrum brevifolium-Cleome amblyocarpa, Salsola imbricata, Polycarpea robbairea and Heliotropium bacciferum. Among the estimated soil variables in this study, pH and HCO3 are important in characterizing the vegetation clusters.

  12. [Mollusc diversity in an Arca zebra (Mollusca: Bivalvia) community, Chacopata, Sucre, Venezuela].

    Science.gov (United States)

    Prieto, A S; Ruiz, L J; García, N; Alvarez, M

    2001-06-01

    The diversity of a subtidal epifaunal mollusk community was studied from September, 1990 to September, 1991 in Chacopata, Sucre State, Venezuela. There were 40 species (24 bivalves and 16 gastropods). The diversity indexes (H' = 2.087, J' = 0.392, 1/D = 0.528) were low when compared with other tropical zones. Monthly diversity reached its maximum in September, 1990 (1.63 bits/ind.) and July, 1991 (1.60 bits/ind.); minimum diversity occurred in June, 1991 (0.52 bits/ind.). A Log series model applied to species abundance data showed a straight line with a diversity index alpha of 5.56. Of 40 species identified, the turkeywing Arca zebra was dominant (69% in number of individuals and 72% of biomass) followed by Pinctada imbricata, Modiolus squamosus, Chama macerophyla and Anadara notabilis. The predatory snails Phyllonotus pomum, Chicoreus brevifrons and Murex recurvirostris seemed to have trophic relationships with A. zebra. The total mean biomass in wet weight (469.20 +/- 263 g m-2, shell included) was high which indicates that A. zebra, a species with a rapid growth rate, occupies a central role in the assemblage as an efficient filter feeder that converts planktonic food into available biomass, supporting one of the most important fisheries in Venezuela. PMID:11935909

  13. 安徽省水生植物资源的调查与分析%Investigation and Conservation of Resources of Aquatic Higher Plants in Anhui

    Institute of Scientific and Technical Information of China (English)

    陈明林; 刘玲玲; 张小平

    2004-01-01

    本文研究了安徽省水生高等植物资源的种类、生境、组成特点、经济价值及植被概况,结果表明本省有水生高等植物44科、72属、138种,其中单子叶植物占优势,分别占科、属、种的40.9%、50.0%、54.4%.各科亲缘关系较远,并且许多科仅有一属的少数种为水生的.其地理成分表明,本地水生种子植物以世界分布属为主,热带成分与温带成分几乎各占一半,基本反映安徽省具有热带和温带的双重性质.水生植被以竹叶眼子菜(Potamogeton malaianus)群落,苦草(Vallisineria spiralis)群落,紫萍(Spirodela polyrrhiza)、浮萍(Lemna minor)群落,满江红(Azolla imbricata)、槐叶苹(Salvinia natans)群落,莲(Nelumbo nucifera)群落为主.

  14. New Mediterranean Marine biodiversity records (December, 2013

    Directory of Open Access Journals (Sweden)

    M. BILECENOGLU

    2013-07-01

    Full Text Available Based on recent biodiversity studies carried out in different parts of the Mediterranean, the following 19 species are included as new records on the floral or faunal lists of the relevant ecosystems: the green algae Penicillus capitatus (Maltese waters; the nemertean Amphiporus allucens (Iberian Peninsula, Spain; the salp Salpa maxima (Syria; the opistobranchs Felimida britoi and Berghia coerulescens (Aegean Sea, Greece; the dusky shark Carcharhinus obscurus (central-west Mediterranean and Ionian Sea, Italy; Randall’s threadfin bream Nemipterus randalli, the broadbanded cardinalfish Apogon fasciatus and the goby Gobius kolombatovici (Aegean Sea, Turkey; the reticulated leatherjack Stephanolepis diaspros and the halacarid Agaue chevreuxi (Sea of Marmara, Turkey; the slimy liagora Ganonema farinosum, the yellowstripe barracuda Sphyraena chrysotaenia, the rayed pearl oyster Pinctada imbricata radiata and the Persian conch Conomurex persicus (south-eastern Crete, Greece; the blenny Microlipophrys dalmatinus and the bastard grunt Pomadasys incisus (Ionian Sea, Italy; the brown shrimp Farfantepenaeus aztecus (north-eastern Levant, Turkey; the blue-crab Callinectes sapidus (Corfu, Ionian Sea, Greece. In addition, the findings of the following rare species improve currently available biogeographical knowledge: the oceanic pufferfish Lagocephalus lagocephalus (Malta; the yellow sea chub Kyphosus incisor (Almuñécar coast of Spain; the basking shark Cetorhinus maximus and the shortfin mako Isurus oxyrinchus (north-eastern Levant, Turkey.

  15. Synchrotron radiation X-ray tomographic microscopy (SRXTM of brachiopod shell interiors for taxonomy: Preliminary report

    Directory of Open Access Journals (Sweden)

    Motchurova-Dekova Neda

    2010-01-01

    Full Text Available Synchrotron radiation X-ray tomographic microscopy (SRXTM is a non-destructive technique for the investigation and visualization of the internal features of solid opaque objects, which allows reconstruction of a complete three-dimensional image of internal structures by recording of the differences in the effects on the passage of waves of energy reacting with those structures. Contrary to X-rays, produced in a conventional X-ray tube, the intense synchrotron light beams are sharply focused like a laser beam. We report encouraging results from the use of SRXTM for purely taxonomic purposes in brachiopods: an attempt to find a non-destructive and more efficient alternative to serial sectioning and several other methods of dissection together with the non-destructive method of X-ray computerised micro-tomography. Two brachiopod samples were investigated using SRXTM. In “Rhynchonella” flustracea it was possible to visualise the 3D shape of the crura and dental plates. In Terebratulina imbricata it was possible to reveal the form of the brachidium. It is encouraging that we have obtained such promising results using SRXTM with our very first two fortuitous samples, which had respectively fine-grained limestone and marl as infilling sediment, in contrast to the discouraging results communicated to us by some colleagues who have tested specimens with such infillings using X-ray micro-tomography. In future the holotypes, rare museum specimens or delicate Recent material may be preferentially subjected to this mode of analysis.

  16. Contextualising the Last Survivors: Population Structure of Marine Turtles in the Dominican Republic.

    Directory of Open Access Journals (Sweden)

    Carlos Carreras

    Full Text Available Nesting by three species of marine turtles persists in the Dominican Republic, despite historic threats and long-term population decline. We conducted a genetic survey of marine turtles in the Dominican Republic in order to link them with other rookeries around the Caribbean. We sequenced a 740bp fragment of the control region of the mitochondrial DNA of 92 samples from three marine turtle species [hawksbill (n = 48, green (n = 2 and leatherback (n = 42], and incorporated published data from other nesting populations and foraging grounds. The leatherback turtle (Dermochelys coriacea in the Dominican Republic appeared to be isolated from Awala-Yalimapo, Cayenne, Trinidad and St. Croix but connected with other Caribbean populations. Two distinct nesting populations of hawksbill turtles (Eremochelys imbricata were detected in the Dominican Republic and exhibited interesting patterns of connectivity with other nesting sites and juvenile and adult male foraging aggregations. The green sea turtle (Chelonia mydas has almost been extirpated from the Dominican Republic and limited inference could be made from our samples. Finally, results were compared with Lagrangian drifting buoys and published Lagrangian virtual particles that travelled through the Dominican Republic and Caribbean waters. Conservation implications of sink-source effects or genetic isolation derived from these complex inter-connections are discussed for each species and population.

  17. Contextualising the Last Survivors: Population Structure of Marine Turtles in the Dominican Republic.

    Science.gov (United States)

    Carreras, Carlos; Godley, Brendan J; León, Yolanda M; Hawkes, Lucy A; Revuelta, Ohiana; Raga, Juan A; Tomás, Jesús

    2013-01-01

    Nesting by three species of marine turtles persists in the Dominican Republic, despite historic threats and long-term population decline. We conducted a genetic survey of marine turtles in the Dominican Republic in order to link them with other rookeries around the Caribbean. We sequenced a 740bp fragment of the control region of the mitochondrial DNA of 92 samples from three marine turtle species [hawksbill (n = 48), green (n = 2) and leatherback (n = 42)], and incorporated published data from other nesting populations and foraging grounds. The leatherback turtle (Dermochelys coriacea) in the Dominican Republic appeared to be isolated from Awala-Yalimapo, Cayenne, Trinidad and St. Croix but connected with other Caribbean populations. Two distinct nesting populations of hawksbill turtles (Eremochelys imbricata) were detected in the Dominican Republic and exhibited interesting patterns of connectivity with other nesting sites and juvenile and adult male foraging aggregations. The green sea turtle (Chelonia mydas) has almost been extirpated from the Dominican Republic and limited inference could be made from our samples. Finally, results were compared with Lagrangian drifting buoys and published Lagrangian virtual particles that travelled through the Dominican Republic and Caribbean waters. Conservation implications of sink-source effects or genetic isolation derived from these complex inter-connections are discussed for each species and population. PMID:23840394

  18. Biohydrogen production from diary processing wastewater by anaerobic biofilm reactors

    Energy Technology Data Exchange (ETDEWEB)

    Rios-Gonzalez, L.J.; Moreno-Davila, I.M.; Rodriguez-Martinez, J.; Garza-Garcia, Y. [Universidad Autonoma de Coahuila, Saltillo, Coahuila (Mexico)]. E-mail: leopoldo.rios@mail.uadec.mx

    2009-09-15

    This article describes biological hydrogen production from diary wastewater via anaerobic fermentation using pretreated heat shock (100 degrees Celsius, 30 min.) and acid (pH 3.0, 24 h) treatment procedures to selectively enrich the hydrogen producing mixed consortia prior to inoculation to batch reactors. Bioreactor used for immobilization consortia was operated at mesophilic (room) temperature (20{+-}3 degrees Celsius), under acidophilic conditions (pH 4.0-4.5), HRT (2h), and a natural support for generate hydrogen producing mixed consortia biofilm: Opuntia imbricata. Reactor was initially operated with sorbitol (5g/L) for 60 days of operation. Batch tests were conducted using 20{+-}0.02g of natural support with biofilm. Batch experiments were conducted to investigate the effect of COD (2.9-21.1 g-COD/L), at initial pH of 7.0, 32{+-}1 degrees Celsius. Maximum hydrogen yield was obtained at 21.1 g-COD/L. Experiments of pH effect were conducted using the optimal substrate concentration (21.2 g-COD/L), at pH 4 to 7 and 11.32 (pH diary wastewater) ,and 32{+-}1 degrees Celsius. Experiments results indicate the optimum initial cultivation was pH 4.0, but we can consider also a stable hydrogen production at pH 11.32 (pH diary wastewater), so we can avoid to fit the pH, and use diary wastewater as it left the process of cheese manufacture. The operational pH of 4.0 is 1.5 units below that of previously reported hydrogen producing organisms. The influence of the effect of temperature were conducted using the optimal substrate concentration (21.2 g-COD/L), two pH levels: 4.0 and 11.32, and four different temperatures: 16{+-}3 degrees Celsius (room temperature), 3 C, 45{+-}1 degrees Celsius y 55{+-}1 degrees Celsius.Optimal temperature for hydrogen production from diary wastewater at pH 4.0 was 55{+-}1 degrees Celsius, and for pH 11.32 was 16{+-}3 degrees Celsius.Therefore, the results suggests biofilm reactors in a natural support like Opuntia imbricata have good potential

  19. PENGEMBANGAN MODEL INTERNALISASI NILAI KARAKTER DALAM PEMBELAJARAN SEJARAH MELALUI MODEL VALUE CLARIFICATION TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Nunuk Suryani

    2013-07-01

    Full Text Available This research produce a product model of internalization of the character in learning history through Value Clarification Technique as a revitalization of the role of social studies in the formation of national character. In general, this research consist of three levels : (1 doing  pre-survey which identified the current condition of  the learning value of character in ​​in learning history (2 development of a model based on the findings of  pre-survey, the model used is the Dick and Carey Model, and (3 validating the models. Development models implemented with limited trials and extensive testing. The findings of this study lead to the conclusion that the VCT model is effective to internalize the character value in learning history. VCT models effective for increasing the role of learning history in the formation of student character. It can be concluded VCT models effective for improving the quality of processes and products of learning character values ​​in social studies SMP especially in Surakarta Keywords: Internalization, the value of character, Model VCT, learning history, learning social studies Penelitian ini bertujuan menghasilkan suatu produk model internalisasi nilai karakter dalam pembelajaran IPS melalui Model Value Clarification Technique sebagai revitalisasi peran pembelajaran IPS dalam pembentukan karakter bangsa. Secara garis besar tahapan penelitian meliputi (1 prasurvai untuk mengidetifikasi kondisi pembelajaran nilai karakter pada pembelajaran  IPS Sejarah SMP yang sedang berjalan, (2 pengembangan model berdasarkan hasil prasurvai, model yang digunakan adalah model Dick and Carey, dan (3 vaidasi model. Pengembangan model dilaksanakan dengan ujicoba terbatas dan uji coba luas. Temuan penelitian ini menghasilkan kesimpulan bahwa model VCT efektif  menginternalisasi nilai karakter dalam pembelajaran Sejarah. Model VCT efektif untuk meningkatkan peran pembelajaran Sejarah dalam

  20. Analysis of temperament characteristics of 206 infants aged 5~ 11 months%5~11个月婴儿气质特点206例分析

    Institute of Scientific and Technical Information of China (English)

    张永明

    2012-01-01

    [Objective] To investigate temperament characteristics of infants and guide parents to rear the infants and develop a good emotional response. [Method] 206 infants were surveyed with Carey's Temperament Questionnaire Scale. [Results] The proportion of infants with different temperament types in this district was 36. 2% for easy type and 41. 4% intermediate low child type,8. 6% for difficult type and 6. 7% for intermediate high child type and 7. 1 % for slow-to-warm up type of temperament. There were significant the cesarean section group and the spontaneous delivery group in distribution of all temperament types(x2 = 10. 391 ,P = 0. 034). There were no significant differences in gender dimensions of infant tem-perament(all P>0. 05). There were no significant gender differences in distribution of all temperament types(x2 = 5. 002,P = 0. 287). [Conclusion] To carry out the work of early childhood development, more attention should be paied to earlychildhood temperament characteristics.%[目的]了解婴儿气质特征,指导家长科学养育,培养婴儿良好的情绪、情感反应. [方法]采用《Carey5~11月婴儿气质问卷》,对西城区社区保健科206名5~11月婴儿进行调查分析. [结果]婴儿的主要气质类型分别为:易养型(36.2%)、中间偏易养型(41.4%)、困难型(8.6%)、启动缓慢型(7.1%)、中间偏难养型(6.7%).剖宫产婴儿与自然分娩婴儿气质特点的比较,差异有统计学意义(x2=10.391,P=0.034);不同性别婴儿气质维度中,男童与女童无显著性差异(P均>0.05);不同气质类型分布之间性别比较差异无统计学意义(x2=5.002,P=0.287). [结论]开展儿童早期综合发展工作,应重视早期儿童的气质特点.

  1. Propriedades enzimáticas da enzima ALS de Cyperus difformis e mecanismo de resistência da espécie ao herbicida pyrazosulfuron-ethyl Enzymatic properties of Cyperus difformis ALS enzyme and mechanism resistance of the species to pyrazosulfuron-ethyl herbicide

    Directory of Open Access Journals (Sweden)

    Taísa Dal Magro

    2010-12-01

    Full Text Available Cyperus difformis L. é uma planta daninha ocorrente em lavouras de arroz irrigado, que tem apresentado dificuldade de controle devido à resistência a herbicidas inibidores da enzima ALS. Os objetivos deste trabalho foram investigar características cinéticas da enzima ALS de biótipos de C. difformis e determinar as bases bioquímicas da resistência da espécie ao herbicida pyrazosulfuron-ethyl. Para isso, foram conduzidos experimentos em laboratório do BIOAGRO/UFV. O método utilizado baseou-se na metologia utilizada por CAREY et al. (1997 e adaptada por VARGAS et al. (1999, com algumas modificações. Foram avaliadas a concentração de substrato (piruvato que fornece velocidade inicial igual à metade da velocidade máxima de reação (K M e velocidade máxima de reação (Vmáx, bem como a atividade da enzima ALS na presença do inibidor (pyrazosulfuron-ethyl. Diante dos resultados, pode-se observar que a resistência de C. difformis a pyrazosulfuron-ethyl é decorrente da insensibilidade da enzima ALS ao herbicida, não acarretando, porém, prejuízo aos parâmetros cinéticos K M e Vmáx da enzima ALS.Cyperus difformis L. is a weed that occurs in flooded rice, which has presented difficulty in controlling due to the resistance to ALS inhibiting herbicides. The objectives of this research were to investigate kinetic characteristics of ALS enzyme from C. difformis biotypes and to determine the biochemical bases of resistance from the species to pyrazosulfuron-ethyl herbicide. For that, experiments were conducted at the BIOAGRO/UFV laboratory. The method used was based on the methodology used by CAREY et al. (1997 and adapted by VARGAS et al. (1999, with some modifications. It was evaluated substratum concentration (pyruvate that provides initial velocity equal to half the speed reaction (K M and maximum velocity of reaction (Vmáx, as well the activity of the ALS enzyme in the presence of the inhibitor (pyrazosulfuron-ethyl. According

  2. Long-term performance of the steel-cement interface in CO2 sequestration wells

    Science.gov (United States)

    Carey, J. W.; Han, J.

    2011-12-01

    Long-term performance of CO2 storage reservoirs will require that wells (injection, monitoring, and pre-existing) continue to provide isolation of the buoyant CO2 plume. Short-term leakage concerns are driven by the quality of the well completions, particularly placement of Portland cement. However, operational and CO2-injection induced stresses in the reservoir may introduce small defects in the well isolation system, allowing migration of small quantities of CO2 and brine. Evidence for such leaks has been observed in a CO2-enhanced oil recovery well (Carey et al. 2007) and in a natural CO2 reservoir (Crow et al. 2010). The key question in long-term performance is whether these leaks will grow as wellbore materials degrade or whether carbonate precipitation reactions will self-heal the defects. In this study, we focus on the interface between steel casing and Portland cement. In a properly completed well, Portland cement provides a protective, alkaline environment for carbon steel that precludes the possibility of external corrosion. The protective cement can be damaged either by the formation of small gaps at the interface, known as microannuli, or by the carbonation of cement which eliminates cement alkalinity. To investigate these issues, we conducted experiments on cement-steel composites at conditions ranging from atmospheric to high-pressure to determine the susceptibility of steel to corrosion in the presence of well-bonded cement, carbonated cement, and cement separated from the steel by varying gap distances. The presence of cement greatly reduces corrosion rates of steel because an iron carbonate scale forms rapidly and provides a mass-transfer barrier. Similarly, a small gap at the cement-steel interface provides a mass-transfer barrier. Our results show that scale formation provides a more significant barrier to corrosion and that even small gaps (Journal of Greenhouse Gas Control, Vol. 1, pp. 75-85. Crow, W, Carey, J.W., et al. (2010)International

  3. Consecuencias políticas del calendario electoral en América latina: ventajas y desventajas de elecciones simultáneas o separadas para presidente y legislatura

    Directory of Open Access Journals (Sweden)

    José Enrique MOLINA V.

    2010-07-01

    Full Text Available El trabajo analiza los planteamientos desarrollados por Shugart y Carey (1992 y Mainwaring y Shugart (1997 con relación al efecto que sobre la gobernabilidad y la representatividad tienen las distintas combinaciones de sistema electoral para presidente de la República con la fecha en que se realizan las elecciones legislativas (simultáneas o separadas con las presidenciales, confrontando las hipótesis que se derivan de estos análisis con los resultados de las elecciones presidenciales celebradas en los países de América Latina entre 1996 y 2000. Se llega a la conclusión de que los resultados electorales tienden a corroborar las hipótesis sobre el efecto combinado del calendario electoral y el sistema electoral presidencial sobre la gobernabilidad y la representatividad, y en particular sobre la posibilidad de que el presidente electo cuente con una fuerza parlamentaria mayoritaria o sólida.

  4. Mingle Model for Teaching English Speaking Skill for College Students

    Directory of Open Access Journals (Sweden)

    Darmayenti darmayenti

    2015-02-01

    Full Text Available This paper is a report of a research and development project conducted in a speaking skill for the first-year students of State Institute for Islamic Studies Imam Bonjol Padang, academic year 2012/2013. Mingle as a technique in teaching speaking proposed by Pollard and Hess in 1997 was developed into a new model. Using ADDIE model as proposed by Dick and Carey in 1996, we collected the intended data through observation, questionnaire, and test. The result of the research showed that the implementation of model gave a significant difference in term of the students-learning outcome between the students who are taught through Mingle model and by traditional one or without Mingle model. The development of Mingle model included preparation, warming up, set the rule, act Mingle model, presentation, review and discussion. It is concluded that Mingle model is more effective to improve students on all components of speaking skill. Therefore, it is recommended that this model can be implemented at IAIN Imam Bonjol Padang. Copyright © 2015 by Al-Ta'lim All right reserved

  5. STS-109 Flight Day 7 Highlights

    Science.gov (United States)

    2002-01-01

    The Hubble Space Telescope (HST) is seen on its berthing platform on the rear of the cargo bay of the Columbia Orbiter. Additional footage shows the port solar array of the HST as well as the area where the new thermal blanket was installed. Mission Specialists James Newman and Michael J. Massimino are performing their spacewalk. The footage includes Newman unbolting and sliding out the Faint Object Camera, moving it into storage, then lifting the Advanced Camera for Surveys (ACS) out of the cargo bay, and Massimino installing the ACS. The second stage of their spacewalk shows Newman retrieving the Electronic Support Module out of the cargo bay, and assisting Massimino as he installs the module and its connectors in front of the ACS. As they return to Columbia, additional members of the crew are seen preparing spacesuits for the following day's spacewalk and cleaning the seals on the airlock. The video concludes with Pilot Duane G. Carey interviewing Massimino about his spacewalk using internet questions from school children.

  6. The effects of prior knowledge and instruction on understanding image formation

    Science.gov (United States)

    Galili, Igal; Bendall, Sharon; Goldberg, Fred

    This paper reports on a study that was designed to investigate the knowledge about image formation exhibited by students following instruction in geometrical optics in an activity-based college physics course for prospective elementary teachers. Students were interviewed individually, using several tasks involving simple apparatus (plane and curved mirrors, lenses, and prisms). The diagrams drawn by the students and the verbal comments they made provide evidence that their knowledge can be described as an intermediate state, a hybridization of preinstruction knowledge (which is dominated by a holistic conceptualization) and formal physics knowledge. We infer from our data the core concepts and main ideas of the postinstruction students' hybrid knowledge. Finally, by comparing preinstruction and formal physics conceptualizations of image formation we argue that a strong type of knowledge restructuring (in the sense of Carey, S., 1986: American Psychologist, 41, 1123-1130; Vosianou, S., & Brewer, W.F., 1987: Review of Educational Research, 57, 51-67) is required for students to acquire the latter.

  7. Effective use of high CO2 efflux at the soil surface in a tropical understory plant

    Science.gov (United States)

    Ishida, Atsushi; Nakano, Takashi; Adachi, Minaco; Yoshimura, Kenichi; Osada, Noriyuki; Ladpala, Phanumard; Diloksumpun, Sapit; Puangchit, Ladawan; Yoshimura, Jin

    2015-01-01

    Many terrestrial plants are C3 plants that evolved in the Mesozoic Era when atmospheric CO2 concentrations ([CO2]) were high. Given current conditions, C3 plants can no longer benefit from high ambient [CO2]. Kaempferia marginata Carey is a unique understory ginger plant in the tropical dry forests of Thailand. The plant has two large flat leaves that spread on the soil surface. We found a large difference in [CO2] between the partly closed space between the soil surface and the leaves (638 µmol mol−1) and the atmosphere at 20 cm above ground level (412 µmol mol−1). This finding indicates that the plants capture CO2 efflux from the soil. Almost all of the stomata are located on the abaxial leaf surface. When ambient air [CO2] was experimentally increased from 400 to 600 μmol mol−1, net photosynthetic rates increased by 45 to 48% under near light-saturated conditions. No significant increase was observed under low light conditions. These data demonstrate that the unique leaf structure enhances carbon gain by trapping soil CO2 efflux at stomatal sites under relatively high light conditions, suggesting that ambient air [CO2] can serve as an important selective agent for terrestrial C3 plants. PMID:25758763

  8. DEVELOPMENT OF INTERACTIVE MULTIMEDIA COURSEWARE (E-CRAFT FOR CRAFT EDUCATION

    Directory of Open Access Journals (Sweden)

    Salyani OSMAN,

    2012-08-01

    Full Text Available The way of teaching and learning traditional crafts have always used traditional apprenticeship learning methods where the expert facilitates transfer of practice skill sets to novices. As a craft has been taught in conventional approach, the students and experts have been facing several problems especially when expert needs to teach a group of students. An appropriate mapping of craft education and Information and Communication Technologies using Multimedia technology for instance, has the potential in transforming traditional craft learning into more flexible environment. This paper reports on a research project on development of an interactive multimedia courseware package for teaching and learning traditional craft called e-CRAFT. The e-CRAFT is specially designed for songket weaving course taught to certificate and diploma students from Fakulti Seni Kraf Tenunan in their first year study at Institut Kraf Negara, Malaysia (National Craft Institute. The courseware was developed in a web-based environment and overall development process was based on the Dick and Carey's process model and conceptual Instructional Design framework. It is made up of eight learning modules: Introduction, Materials & Tools, Knowing Motifs, Learn How to Weave, Quizzes & Test, Online Discussion, Glossary and Help module. In order to test whether the courseware is suitable in terms of usability, pilot testing was done to a sample of 10 students. The results from pilot test received positive feedback which signifies the courseware is considered acceptable for effectiveness study and help for further improve of the e-CRAFT courseware.

  9. E-Learning and Economic Development

    Directory of Open Access Journals (Sweden)

    Kelly CAREY

    2005-01-01

    Full Text Available E-Learning and Economic Development Kelly CAREY West Valley College Saratoga, CA, USA Stanko BLATNIK Institute for Symbolic Analysis and Development of Information Technologies Velenje, SLOVENIA ABSTRACT In this article, our experience in the development and realization of e-Learning courses in Slovenia is described and discussed. Slovenia, the most developed republic of former Yugoslavia, became an EU member in May 2004. In 1991, after its independence from Yugoslavia, Slovenia’s transition to a free market economy resulted in lost jobs and an unemployment rate of 12%. In 1999, as the Institute for Symbolic Analysis and Development of Information Technologies, located in Velenje, Slovenia, we decided to offer several online courses to help unemployed people gain the skills and knowledge needed for employability in information technology. We drew on our previous experience teaching online courses at Sarajevo University after the Bosnian war and on the experience of West Valley College from Saratoga, Silicon Valley in e-Learning. Over the last four years, we organized and delivered e-Learning courses in digital media design and production, with good results. Several students found jobs and changed their perception and attitude as they became more self-confident. We believe e-Learning can efficiently enhance lifelong learning and support economic development, especially in new member countries transitioning from former socialistic to free market economies.

  10. Bipartisan proposal calls for SGR repeal

    Directory of Open Access Journals (Sweden)

    Robbins RA

    2013-11-01

    Full Text Available No abstract available. Article truncated at 150 words. The Washington Post (11/1, Carey reports a bipartisan group of legislators has agreed on a framework replacing the “problematic” Medicare payment formula in an attempt to end the annual Sustainable Growth Rate (SGR or “doc fix” debate. The current system is set to reduce Medicare physician payments by approximately 25% on Jan. 1 without Congressional intervention. Senate Finance Committee Chairman Max Baucus (D-MT and House Ways and Means Committee Chairman Dave Camp (R-MI introduced a draft proposal that would “encourage care management services for individuals with complex chronic care needs through the development of new payment codes for such services, as well as leverage physician-developed standard of care guidelines to avoid the unnecessary provision of services”. The Committees value your feedback on this proposal. Please submit written comments to the Finance SGR comments mailbox at sgrcomments@finance.senate.gov and the Ways & Means SGR comments mailbox at sgrwhitepaper@mail.house.gov by Tuesday, November 12, …

  11. Optic neuropathy associated with the use of over-the-counter sexual enhancement supplements

    Directory of Open Access Journals (Sweden)

    Karli SZ

    2014-10-01

    Full Text Available Sapir Z Karli, Sophie D Liao, Andrew R Carey, Byron L Lam, Sara T Wester Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA Abstract: This case report details an association of the use of over-the-counter sexual enhancement supplements with atypical optic neuropathy. A 42-year-old man presented with right-sided headache and vision loss of the right eye, which deteriorated to a single quadrant of hand motion over 11 days. Serial orbital magnetic resonance imaging scans demonstrated progressive orbital optic nerve enhancement extending into the optic canal despite high-dose steroid treatment. The patient eventually admitted to using several over-the-counter sexual enhancement supplements prior to the onset of symptoms and throughout the course of his steroid treatment, which he subsequently discontinued. His vision improved to 20/200 with an expanded visual field. Anterior ischemic optic neuropathy has been reported in association with phosphodiesterase (PDE-5 inhibitor use, but visual loss in association with unregulated sexual enhancement supplements has not been studied. While one case cannot establish association, our case is suggestive of potential dangers of over-the-counter sexual enhancement supplements, which may contain PDE-5 inhibitors, “male hormones,” and “substances that enhance blood production.” The case also underscores the importance of obtaining a careful history of supplements in patients with optic neuropathies. Keywords: optic neuropathy, PDE-5 inhibitor, sildenafil

  12. Phantom of the Universe: A State-of-the-Art Planetarium Show on Dark Matter

    Science.gov (United States)

    Barnett, Michael

    2016-03-01

    Phantom of the Universe is a planetarium show premiering in 2016 that will showcase an exciting exploration of dark matter, from the Big Bang to the Large Hadron Collider. The show will reveal the first hints of its existence through the eyes of Fritz Zwicky. Viewers will marvel at the astral choreography witnessed by Vera Rubin in the Andromeda galaxy. They will plummet deep underground to see the most sensitive dark matter detector on Earth. From there, they will end the journey at the Large Hadron Collider, speeding alongside particles before they collide in visually stunning explosions of light and sound, and learning how scientists around the world are collaborating to track down the constituent of dark matter. The show will be offered to planetariums worldwide free of charge. It will feature music composed by Mickey Hart (Apocalypse Now, The Twilight Zone, The Grateful Dead) and narration by Academy-Award winning actress Tilda Swinton, and showcase the creativity and directing prowess of Joao Pequenao and the writing and producing talents of award-winning filmmaker, Carey Ann Strelecki. See a flattened preview (with resulting distortions) at: http://PhantomOfTheUniverse.com/

  13. BI-RADS CATEGORIZATION AND POSITIVE PREDICTIVE VALUE OF MAMMOGRAPHIC FEATURES

    Institute of Scientific and Technical Information of China (English)

    TANG; Rui-ying

    2001-01-01

    [1]American College of Radiology (ACR). Breast imaging reporting and data system (BI-RADS) [M]. 3rd ed. Reston, VA: American College of Radiology, 1998.[2]Laura L, Andrea FA, Fredric BS, et al. The breast imaging reporting and data system: positive predictive value of mammographic features and final assessment categories [J]. AJR 1998; 171:35.[3]Susan GO, Nicole K, Carol R, et al. BI-RADS categorization as a predictor of malignancy [J]. Radiology 1999; 211:845.[4]Jay AB, Phyllis JK, Carey EF. Breast imaging reporting and data system standardized mammography lexicon: observer variability in lesion description [J]. AJR 1996; 166:773.[5]Berg WA, Campassi, Sexton MJ, et al. Analysis of sources of variation in mammographic interpretation [J]. Radiology 1997; 205:447.[6]Daniel BK. Standardized mammography reporting [J]. Radiologic Clinics of North America 1992; 30:257.[7]Jay AB, Phyllis JK, Joseph YL, et al. Breast cancer: prediction with artificial neural network based on BI-RADS standardized lexicon [J]. Radiology 1995; 196:817.[8]Berube M, Curpen B, Ugolini P, et al. Level of suspicion of a mammographic lesion: use of features defined by BI-RADS lexicon and correlation with large core breast biopsy [J]. Can Assoc Radiol J 1998; 49:223.

  14. Unifying Paschen Curve Conditions across Pressure and Gap Distance

    Science.gov (United States)

    Loveless, Amanda; Garner, Allen; Valfells, Agust

    2015-11-01

    The Paschen curve (PC) predicts the breakdown voltage of a gas by relating it to the product of pressure and gap distance (pd). Recent experiments deviate from the PC for microscale gaps at low pd. A scaling law incorporating field emission-driven breakdown and field enhancement to the macroscale Paschen law yields more accurate predictions for microscale gaps (A. Venkattraman and A. A. Alexeenko, Phys. Plasmas 19, 123515 (2012).). While many studies consider low pd, deviations from the PC also arise at high pd, as demonstrated for gap distances between 0.0508 and 0.254 cm and pressures between 96.5 and 6900 kPa (W. J. Carey, A. J. Wiebe, R. D. Nord, and L. L. Altgilbers, in Proc. IEEE Pulsed Power Conf., 2011, pp. 741-744). High pd values are relevant for ongoing high voltage plasma experiments for food treatment and combustion. We attempt to elucidate the impact of large gap distances (~ 5 cm) and higher pressures (~ 200-300 kPa) on these deviations by connecting recent work at low pd to high pd by assessing scaling laws, analyzing field emission models, and using particle-in-cell codes. Implications on experimental design will be discussed, and the development of a universal Paschen curve will be explored.

  15. Study on the Sociological Turn Underlying the Cultural Vision of News Production%论新闻生产文化视维的社会学转向

    Institute of Scientific and Technical Information of China (English)

    邱鸿峰

    2012-01-01

    自詹姆斯·凯瑞提出传播的仪式观以来,文化模式的新闻生产研究经历了人类学朝社会学视维转向的过程。通过文化视维看近期中国的交通事故报道,新闻生产可被理解为普世叙事倾向与本土文化资源的双重作用。然而文化模式尚未解答叙事倾向的形成、冲突与社会互动等深层问题,布尔迪厄对“习性”的阐述对此提供了理论参考。%After James Carey proposed a ritual view of communication in 1975, studies about news production based on cultural models underwent an epistemological tum from anthropology to sociology. By examining some traffic accident news reports in Chinese media recently, the cultural vision of news production defines the news as the products of journalists' universal narrative dispositions and local cultural resources. While the cultural vision has not yet addressed the formation, conflicts and social interaction of narrative disposition, Bourdieu's concept ofhabitus provides a theoretical reference for those questions

  16. Hvorfor samtalen ikke er demokratiets sjæl ikke er demokratiets sjæl

    Directory of Open Access Journals (Sweden)

    Michael Schudson

    2001-09-01

    Full Text Available Medie- og kommunikationsforskningen har ofte opfattet samtalen, der føres ansigt-til-ansigt, som en hjørnesten i den demokratiske proces. Denne opfattelse stammer bl.a. fra medieforskeren James Carey, der selv har været inspireret af den amerikanske filosof John Dewey. I den- ne artikel præsenterer Michael Schudson en kritik af, hvad han kalder den romantiske forestilling om samtalen. Samtalen ansigt-til-ansigt har været lige så meget i højsædet i aristokratier som i demokratier, og der er faktisk to distinkte og modsatte idealer for samtale: den selskabelige samtale og den problemløsende samtale. Samtalen, der tjener demo- kratiet, er ikke kendetegnet ved egalitarisme, men ved normstyrethed og offentlighed, ikke ved spontanitet men ved høflighed, og ikke ved dens forrang eller overlegenhed i forhold til trykte medier, radio eller tv, men ved dens nødvendige afhængighed af dem. Der argumenteres for, at institutioner og demokratiske normer giver anledning til demokratiske samtaler, snarere end at samtalens iboende demokrati fører til politisk demokratiske normer og institutioner. Artiklen er oversat af Stig Hjarvard.

  17. Desensitization with DTP (diphtheria, tetanus and pertussis vaccine

    Directory of Open Access Journals (Sweden)

    Atanasković-Marković Marina

    2003-01-01

    Full Text Available Immunization with DTP vaccine (diphtheria, tetanus and pertussis is a part of the vaccination calendar offered in childhood. Adverse allergic reactions vary from minimal urticarial reactions to life-threatening anaphylaxis. In infancy these reactions usually interrupt the vaccination calendar, but immunization in these children should be done. At the University Children's Hospital of Belgrade, a group of 137 children with suspected allergic anaphylactic reaction to DTP, DT, TT and monopertussis vaccine was studied for the last six years. Skin (prick and intradermal tests were performed with corresponding vaccine. If both tests were negative, the vaccine could be given as a single dose of 0.5 ml. If one of these tests were positive desensitization with vaccine could be done (according to the protocol described by Carey and Meltzer. In one group of 52 children three days before desensitization, premedication with antihistamines, was done, whereas in the other group of 52 children premedication was not done. Two (3.8% children in a group of 52 children with premedication had a minor (local reaction after vaccination and 50 children (96.2% had no reaction after vaccination, whereas no children (0% had systemic reaction after desensitization.

  18. Twisted longitudinal index theorem for foliations and wrong way functoriality

    CERN Document Server

    Rouse, Paulo Carrillo

    2010-01-01

    For a Lie groupoid G with a twisting (a PU(H)-principal bundle over G), we use the (geometric) deformation quantization techniques supplied by Connes tangent groupoids to define an analytic index morphism in twisted K-theory. In the case the twisting is trivial we recover the analytic index morphism of the groupoid. For a smooth foliated manifold with twistings on the holonomy groupoid we prove the twisted analog of Connes-Skandalis longitudinal index theorem. When the foliation is given by fibers of a fibration, our index coincides with the one recently introduced by Mathai-Melrose-Singer. We construct the pushforward map in twisted K-theory associated to any smooth (generalized) map $f:W\\longrightarrow M/F$ and a twisting $\\sigma$ on the holonomy groupoid $M/F$, next we use the longitudinal index theorem to prove the functoriality of this construction. We generalize in this way the wrong way functoriality results of Connes-Skandalis when the twisting is trivial and of Carey-Wang for manifolds.

  19. Effective use of high CO₂ efflux at the soil surface in a tropical understory plant.

    Science.gov (United States)

    Ishida, Atsushi; Nakano, Takashi; Adachi, Minaco; Yoshimura, Kenichi; Osada, Noriyuki; Ladpala, Phanumard; Diloksumpun, Sapit; Puangchit, Ladawan; Yoshimura, Jin

    2015-01-01

    Many terrestrial plants are C3 plants that evolved in the Mesozoic Era when atmospheric CO2 concentrations ([CO2]) were high. Given current conditions, C3 plants can no longer benefit from high ambient [CO2]. Kaempferia marginata Carey is a unique understory ginger plant in the tropical dry forests of Thailand. The plant has two large flat leaves that spread on the soil surface. We found a large difference in [CO2] between the partly closed space between the soil surface and the leaves (638 µmol mol(-1)) and the atmosphere at 20 cm above ground level (412 µmol mol(-1)). This finding indicates that the plants capture CO2 efflux from the soil. Almost all of the stomata are located on the abaxial leaf surface. When ambient air [CO2] was experimentally increased from 400 to 600 μmol mol(-1), net photosynthetic rates increased by 45 to 48% under near light-saturated conditions. No significant increase was observed under low light conditions. These data demonstrate that the unique leaf structure enhances carbon gain by trapping soil CO2 efflux at stomatal sites under relatively high light conditions, suggesting that ambient air [CO2] can serve as an important selective agent for terrestrial C3 plants. PMID:25758763

  20. Effect of Anionic Surfactant Linear Alkylbenzene Sulfonate(LAS) on Physiological and Biochemical Characteristics of Aquatic Plants%阴离子型表面活性剂(LAS)对水生植物生理生化特性的影响

    Institute of Scientific and Technical Information of China (English)

    刘红玉; 周朴华; 杨仁斌; 廖柏寒; 鲁双庆; 余苹中

    2001-01-01

    采用室内培养实验方法, 以植物的生长量、过氧化氢酶(CAT)和过氧化物酶(POD)活性变化作为观测指标,研究了直链烷基苯磺酸钠(LAS)对稀脉浮萍(Lemna paucicostata L.)、满江红(Azolla imbricata(Roxb.) Nakai)、水网藻(Hydrodictyon sp.)生理生化特性的影响. 结果表明,当 LAS浓度超过 1 mg@ L-1时,稀脉浮萍的生长受到严重抑制,在 10、100 mg@ L-1下,出现负增长. CAT、POD活性变化与细胞受伤程度直接相关,可作为植物分子生态毒理学指标. LAS浓度在 0-10 mg@ L-1范围内,随着浓度升高,酶活性增加,清除细胞中由于 LAS产生的过氧化物伤害; 当浓度超过 10 mg@ L-1时,植物受到明显损伤,甚至死亡. 同时发现, CAT、POD活性水平与植物的类群直接相关, 被子植物稀脉浮萍的酶活性比蕨类植物满江红的高,藻类植物水网藻酶活性最低.

  1. Distribution patterns and changes of aquatic plant communities in Napahai Wetland in northwestern Yunnan Plateau,China

    Institute of Scientific and Technical Information of China (English)

    Derong XIAO; Kun TIAN; Hua YUAN; Yuming YANG; Ningyun LI; Shouguo XU

    2008-01-01

    Using GPS technology and community research methods for plant communities,we investigated the distribution patterns of aquatic plant communities in the high plateaus of the Napahai Wetlands,Yunnan,China,as well as the species changes of plant communities compared with that of 24 years ago since 2005.We found that the types and numbers of aquatic plant communities have changed.Some pollution-tolerant,nutrient-loving plant communities such as Scirpus tabernaemontani,Zizania caduciflora,Myriophyllum spicatum,and Azolla imbricata flourished,while the primary aquatic plant com-munities were reduced or even disappeared.The number of aquatic plant communities were increased from nine to 12 with the addition of two new emergent plant com-munities and one new floating-leaved plant community.The increase in emergent plant communities was signifi-cant.From east to west and from south to north,various types of plant communities were continuously distributed,including floating-leaved plant communities,emergent plant communities and submerged plant communities.The composition of the communities became more com-plicated and the number of accompanying species increased,while the percentage ratio of dominant plant species declined.In 2005,the coverage of emergent plant communities was the largest (528.42 hm2) followed by submerged plant communities (362.50 hm2) and the float-ing-leaf plant communities was the smallest (70.23 hm2).The variations in the distribution of aquatic plant com-munities in the Napahai Wetlands reflect the natural responses to the change of the wetland ecological envir-onment.This study indicates that human disturbances have led to an inward movement of the wetland shoreline,a decrease in water quality and a reduction in wetland habitat.

  2. 莱芜水生观赏植物资源调查及其开发利用研究%Investigation and Exploitation of Hydrophilous Ornamental Plant Resources in Laiwu

    Institute of Scientific and Technical Information of China (English)

    李绪霞; 温学森; 亓翠英; 王峰祥

    2014-01-01

    Based on the reference of related data , the field survey about the hydrophilous ornamental plants in Laiwu was done in their distribution , habitat and application situation in gardens .The results showed that there were 94 species of hydrophilous ornamental plants from 38 families were found in Laiwu area .Lyth-rum salicaria, Acorus calamus, Juncus effusus, Hydrocharis dubia, Scirpus tabernaemontani, Nymphoides pel-tatum, Salvinia natans, Marsilea quadrifolia, Azoila imbricata, Sparganium stoloniferum and so on were screened with higher ornamental value and better market application prospect .It was suggested that the wet-land plant recourses should be protected and exploited reasonably in Laiwu .%在查阅相关资料的基础上,对莱芜市范围内栽培水生观赏植物的园林应用现状进行了调查,并记录了水生观赏植物资源的种类、分布及生境特点。结果表明:莱芜水生观赏植物共计38科94种;从中筛选出了千屈菜、菖蒲、灯芯草、水鳖、水葱、荇菜、槐叶萍、苹、满江红、黑三棱等具有较高观赏价值和市场开发前景的优良植物资源。建议对湿地植物资源进行合理保护和开发利用。

  3. Notes on the ecology of rolled-leaf hispines (Chrysomelidae, Cassidinae) at La Gamba (Costa Rica)1

    Science.gov (United States)

    Schmitt, Michael; Frank, Meike

    2013-01-01

    Abstract A total of 301 adult hispine beetles of the genera Cephaloleia and Chelobasis were found in rolled leaves of plants of 17 species of Zingiberales (families Costaceae, Heliconiaceae, Maranthaceae, Musaceae, and Zingiberaceae) during a field study at La Gamba, Golfito region, Costa Rica. Of these beetles, Cephaloleia belti was recorded from 12 potential host plant species, C. distincta from 7, C. dilaticollis from 5, C., Chelobasis bicolor, C. championi, and C. histrionica from 3, Chelobasis perplexa and C. instabilis from 2, whereas C. trivittata from only one. Of the plant species, Heliconia latispatha had 7 beetle species in its leaf rolls, Calathea lutea had 5, H. imbricata and H. rostrata had 4, H. stricta and Musa paradisiaca had 3, H. wagneriana had 2, while on H. vaginalis, H. danielsiana, H. densiflora, H. longiflora, Calathea crotalifera, C. platystachya, Goeppertia lasiophylla, Alpinia purpurata, Costus pulverulentus and Costus barbatus, H. densiflora, H. vaginalis, and H. danielsana only hispines of one species were found. Cephaloleia belti occurred together with beetles of six other hispine species, whereas Cephaloleia trivittata never shared a leaf roll with another hispine species. The remaining beetle species aggregated with one to four other hispines. Adults of C. belti and C. championi were frequently seen, occasionally also with C. dilaticollis, C. histrionica, and Chelobasis perplexa, to co-occur with the carabid Calophaena ligata in the same leaf roll without any sign of interspecific aggression. A comparison of host choices and the phylogeny of the hispines and of their host plants revealed no signs that beetles used species level phylogenetic relationships within the Zingiberales to select food plants. Obviously, within this plant order, rolled-leaf hispines choose their plant hosts in a nearly opportunistic manner. Seemingly, they use differences among plants at higher taxonomic levels but within the Zingiberales, the availability of

  4. Notes on the ecology of rolled-leaf hispines (Chrysomelidae, Cassidinae) at La Gamba (Costa Rica).

    Science.gov (United States)

    Schmitt, Michael; Frank, Meike

    2013-01-01

    A total of 301 adult hispine beetles of the genera Cephaloleia and Chelobasis were found in rolled leaves of plants of 17 species of Zingiberales (families Costaceae, Heliconiaceae, Maranthaceae, Musaceae, and Zingiberaceae) during a field study at La Gamba, Golfito region, Costa Rica. Of these beetles, Cephaloleia belti was recorded from 12 potential host plant species, C. distincta from 7, C. dilaticollis from 5, C., Chelobasis bicolor, C. championi, and C. histrionica from 3, Chelobasis perplexa and C. instabilis from 2, whereas C. trivittata from only one. Of the plant species, Heliconia latispatha had 7 beetle species in its leaf rolls, Calathea lutea had 5, H. imbricata and H. rostrata had 4, H. stricta and Musa paradisiaca had 3, H. wagneriana had 2, while on H. vaginalis, H. danielsiana, H. densiflora, H. longiflora, Calathea crotalifera, C. platystachya, Goeppertia lasiophylla, Alpinia purpurata, Costus pulverulentus and Costus barbatus, H. densiflora, H. vaginalis, and H. danielsana only hispines of one species were found. Cephaloleia belti occurred together with beetles of six other hispine species, whereas Cephaloleia trivittata never shared a leaf roll with another hispine species. The remaining beetle species aggregated with one to four other hispines. Adults of C. belti and C. championi were frequently seen, occasionally also with C. dilaticollis, C. histrionica, and Chelobasis perplexa, to co-occur with the carabid Calophaena ligata in the same leaf roll without any sign of interspecific aggression. A comparison of host choices and the phylogeny of the hispines and of their host plants revealed no signs that beetles used species level phylogenetic relationships within the Zingiberales to select food plants. Obviously, within this plant order, rolled-leaf hispines choose their plant hosts in a nearly opportunistic manner. Seemingly, they use differences among plants at higher taxonomic levels but within the Zingiberales, the availability of young

  5. Notes on the ecology of rolled-leaf hispines (Chrysomelidae, Cassidinae at La Gamba (Costa Rica

    Directory of Open Access Journals (Sweden)

    Michael Schmitt

    2013-09-01

    Full Text Available A total of 301 adult hispine beetles of the genera Cephaloleia and Chelobasis were found in rolled leaves of plants of 17 species of Zingiberales (families Costaceae, Heliconiaceae, Maranthaceae, Musaceae, and Zingiberaceae during a field study at La Gamba, Golfito region, Costa Rica. Of these beetles, Cephaloleia belti was recorded from 12 potential host plant species, C. distincta from 7, C. dilaticollis from 5, C., Chelobasis bicolor, C. championi, and C. histrionica from 3, Chelobasis perplexa and C. instabilis from 2, whereas C. trivittata from only one. Of the plant species, Heliconia latispatha had 7 beetle species in its leaf rolls, Calathea lutea had 5, H. imbricata and H. rostrata had 4, H. stricta and Musa paradisiaca had 3, H. wagneriana had 2, while on H. vaginalis, H. danielsiana, H. densiflora, H. longiflora, Calathea crotalifera, C. platystachya, Goeppertia lasiophylla, Alpinia purpurata, Costus pulverulentus and Costus barbatus, H. densiflora, H. vaginalis, and H. danielsana only hispines of one species were found.Cephaloleia belti occurred together with beetles of six other hispine species, whereas Cephaloleia trivittata never shared a leaf roll with another hispine species. The remaining beetle species aggregated with one to four other hispines. Adults of C. belti and C. championi were frequently seen, occasionally also with C. dilaticollis, C. histrionica, and Chelobasis perplexa, to co-occur with the carabid Calophaena ligata in the same leaf roll without any sign of interspecific aggression.A comparison of host choices and the phylogeny of the hispines and of their host plants revealed no signs that beetles used species level phylogenetic relationships within the Zingiberales to food plants. Obviously, within this plant order, rolled-leaf hispines choose their plant hosts in a nearly opportunistic manner. Seemingly, they use differences among plants at higher taxonomic levels but within the Zingiberales, the availability of

  6. In Situ Conservation of Some Rare and Endemic Species of Iridaceae Family in National Botanical Garden of Georgia

    Directory of Open Access Journals (Sweden)

    Tamar Nadiradze

    2014-06-01

    Full Text Available The article covers some information on anthropogenic influence upon natural ecosystems that is considered to be one of the strongest factors for reducing biodiversity of Georgian flora. With this purpose, some species of fam. Iridaceae that need to be protected under in situ conditions are being studied. The paper focuses on the fam. Iridaceae. This family is particularly interesting as it unites a considerable number of valuable, beautifully flowering plants with ornamental leaves, representing different biomorphs. Particularly rare and endangered species are: Iris iberica, I. Grossheimii, I. Lycotis, I. Camillae, I. Elegantissima, etc. We have carried out complex studies of bio-ecological peculiarities of bulbous geophytes and ephemeroids of genus Iridodictyum winogradowii, Ir. Reticulatum, Siphonastilis lasica and Iuno caucasica. There has been studied rhythm of growth and development of vital cycle of monocarpic shootings and ways of their propagation in the sub arid zone of East Georgia. There should be mentioned that they have perfectly adapted to the conditions. Such rare species of rootstock plants like Iris iberica, I. Carthalinical. Aphylla, I. graminea, I. imbricata, I. timofejewii, I. prilipkoana, I. musulmanica, Siphonastilis lazica and others even give abundant self-seedlings that undoubtedly makes it possible to protect them from being finally extinct. All the investigated plants can be recommended for using in landscape architecture under the conditions of East Georgia that will contribute to conservation of the valuable genofond of relict and endemic plants of Georgian flora. The work deals with the results of in situ conservation of some of rare and endemic species of fam. Iridaceae from Iridaceae Juss family. According to IUCN categories, the studied taxaare discussed as the endangered species in nature.

  7. New Mediterranean Biodiversity Records (April 2015

    Directory of Open Access Journals (Sweden)

    Α. ΖΕΝΕΤΟΣ

    2015-01-01

    Full Text Available The Collective Article ‘New Mediterranean Biodiversity Records’ of the Mediterranean Marine Science journal offers the means to publish biodiversity records in the Mediterranean Sea. The current article is divided in two parts, for records of native and alien species respectively. The new records of native fish species include: the slender sunfish Ranzania laevis and the scalloped ribbonfish Zu cristatus in Calabria; the Azores rockling Gaidropsarus granti in Calabria and Sicily; the agujon needlefish Tylosurus acus imperialis in the Northern Aegean; and the amphibious behaviour of Gouania willdenowi in Southern Turkey. As regards molluscs, the interesting findings include Ischnochiton usticensis in Calabria and Thordisa filix in the bay of Piran (Slovenia. The stomatopod Parasquilla ferussaci was collected from Lesvos island (Greece; the isopod Anilocra frontalis was observed parasitizing the alien Pteragogus trispilus in the Rhodes area. The asteroid Tethyaster subinermis and the butterfly ray Gymnura altavela were reported from several localities in the Greek Ionian and Aegean Seas. The new records of alien species include: the antenna codlet Bregmaceros atlanticus in Saronikos Gulf; three  new fish records and two decapods from Egypt; the establishment of the two spot cardinal fish Cheilodipterus novemstriatus and the first record of the Indo-Pacific marble shrimp Saron marmoratus in semi-dark caves along the Lebanese coastline; the finding of Lagocephalus sceleratus, Sargocentron rubrum, Fistularia commersonii and Stephanolepis diaspros around Lipsi island (Aegean Sea, Greece; the decapod Penaeus hathor in Aegean waters; the decapod Penaeus aztecus and the nudibranch Melibe viridis in the Dodecanese islands; the finding of Pinctada imbricata radiata in the Mar Grande of Taranto (Ionian Sea, Italy and the Maliakos Gulf (Greece.  

  8. Oroclines - a century of discourse about curved mountain belts (Petrus Peregrinus Medal Lecture)

    Science.gov (United States)

    Van der Voo, Rob

    2014-05-01

    Exactly a century ago, in early 2014, a discussion appeared in the Journal of Geology by William H. Hobbs entitled "Mechanics of formation of arcuate mountains". In it, he notes how the concept of nappes "has now overcome all opposition in Switzerland" and, presumably in other countries just as much. With horizontal transport so central to the nappe concept, this must have paved the way for the idea that emplacement of trust sheets may have involved rotations. Where such rotations form a coherent regional pattern, a curved mountain belt may be the result. While the paper by Hobbs does not mention the word orocline, and while the dynamics of the situation is not yet illuminated, one must give credit to him for his foresights. The term "orocline" was introduced by S. Warren Carey of Tasmania in 1955, as part of a kinematic analysis of rhomb- and triangle-shaped basins and curved mountain belts. When the displacements involved in the analysis are undone, as he did, for instance, in the western Mediterranean, a grand scheme of simple convergent and divergent patterns emerges. Noteworthy is, of course, the fact that this mobilistic analysis preceded plate tectonics by more than a decade. From Carey (although not exactly in his words) we have inherited the definition of orocline, as "a thrust belt or orogen that is curved in map-view due to it having been bent or buckled about a vertical axis of rotation". Because oroclinal bending involves rotations, the declinations of paleomagnetic studies can be utilized to support and quantify them, and early efforts were already made in the 1960's and early 1970's to do so (e.g., Krs in the Carpathians; Ries & Shackleton in Cantabria; Roy, Opdyke & Irving in the Central Appalachians; Packer & Stone in Alaska). Curved mountain belts everywhere were subsequently investigated, and typically shown by paleomagnetists to be of the oroclinal variety. Few curved belts turned out to be curved from the start. Because these studies were

  9. Unexpected mechanical properties of very dry Berea sandstone near 45°C

    Science.gov (United States)

    Miller, R. A.; Darling, T. W.; TenCate, J. A.; Johnson, P. A.

    2011-12-01

    Office of Basic Energy Sciences]. [1] B. R. Tittmann, L. Ahlberg, and J. Curnow, "Internal friction and velocity measurements," Proc. of 7th Lunar Science Conference , pp. 3123-3132, 1997. [2] K. E.-A. Van Den Abeele, J. Carmeliet, P. A. Johnson, and B. Zinszner, "Influence of water saturation on the nonlinear elastic mesoscopic response in Earth materials and the implications to the mechanism of nonlinearity," Journal of Geophysical Research 107, p. 2121, June 2002. [3] "Dynamic Measures of Elastic Nonlinear (Anelastic) Behavior: Dynamic Acousto-Elasticity Testing (DAET)," G. Renaud, P-Y Le Bas, J. A. TenCate, T. J. Ulrich, J. W. Carey, J. Han, T.W. Darling and P. A. Johnson, AGU Fall Meeting, Dec. 2011. [4] "Water and CO2 chemistry influences on the mechanical integrity of rocks," T.W. Darling, P-Y Le Bas, J. W. Carey, P. A. Johnson and R. A. Miller, AGU Fall Meeting, Dec. 2010.

  10. Sandbox Tectonics As A Teaching Tool

    Science.gov (United States)

    Delaughter, J.

    2005-12-01

    Students are typically introduced to the relative motions of plates and its effects either through text-based descriptions, paper models, or both. However, though students may learn to repeat the description of the effects, many students still do not show a deeper understanding of the process, as shown by examinations of students before and after an introductory geology course (DeLaughter et al, 1998). This is because students are rarely affected by the information on a visceral level; because their preconceptions are never challenged, they never internalize the information as part of their model of how the world works. However, when concepts such as plate motions and their effects are presented to students as part of a tangible, physical experiment, the ideas can have a much greater impact (Carey et al, 1989). The students use the new information to build more complete mental models while learning that such models can and must change in response to new information (Herbert, 2003). When such experiments are performed in a geology class, they afford the students a direct and visceral experience that may enhance the learning process. In this exercise for middle school students, the effects of relative plate motions on overlying sediments are modeled through a simple and inexpensive set of experiments using sand and newspaper. These experiments provide qualitatively the same results as those performed by geologists researching various aspects of faulting and folding (e.g., Horsfield, 1977, Domingez et al., 2000). A secondary benefit of these experiments is that when the students do not pull the papers perfectly the combination of effects can mimic real terrains (e.g., transpressional) very closely. This intrusion of methodological errors can also lead to a lively discussion of how science is done and what the results of an experiment imply, thereby providing a pedagogical benefit as well. Thus students can be shown the effects of relative plate motions in a direct and

  11. Study on applied temperament difficulty index screen behavior problem in preschool children%应用气质困难指数筛查学前儿童行为问题的方法研究

    Institute of Scientific and Technical Information of China (English)

    张永明; 关宏岩

    2013-01-01

    [目的]了解学龄前儿童行为问题的现状,探讨应用气质困难指数筛查学前儿童行为问题的方法,为制定学前儿童行为问题的预防和干预措施,降低儿童心理行为问题的发生提供适宜工具. [方法]采用《Achenbach儿童行为量表》(Child Behavior Checklist,CBCL)、《Carey 3~7岁儿童气质问卷》分别对600名3~6岁幼儿园儿童的行为问题和气质特征进行评价分析. [结果]学前儿童行为问题的的检出率为37.4%,其中男童检出率为40.5%,女童为33.1%.焦虑/抑郁、退缩、注意力、社会化问题、攻击行为因子得分,男童均显著高于女童(P均<0.05).气质困难指数与儿童行为总分及各行为因子得分均有显著相关(P≤0.001).将Achenbach CBCL作为金标准,气质困难指数(3分为临界值)筛查儿童行为问题的灵敏度为9.9%,特异度为97.2%. [结论]学龄前儿童心理行为问题不容忽视,儿童的气质困难指数与行为问题的发生密切相关,将其作为筛查儿童行为问题的方法有较高特异度,与经典CBCL方法比较,方法简便易行易于家长接受.%[Objective] To investigate the behavior problem in preschool children using applied temperament difficulty index and provide a appropriate tools for the development of prevention and intervention measures.[Method] 600 preschool children were surveyed using Carey Preschool Temperament Questionnaire and Achenbach's Child Behavior Checklist for Parents,in Xicheng district of Beijing.[Results] The prevalence of preschool children with behavior problems was 37.4%,with 40.5% in boys and 33.1% in girls.There were significant gender differences in behavior subscale,the boys showed higher anxiety/depression,withdrawal,inattention,social problems,aggressive behavior(all P<0.05).The temperament difficulty index had significantly positive correlation with child behavior problems scores(P≤ 0.001).Temperament difficulty index could be one of

  12. STS-109 Mission Highlights Resource Tape. Part 4 of 4; Flight Days 8 - 12

    Science.gov (United States)

    2002-01-01

    This video, Part 4 of 4, shows footage of crew activities from flight days 8 through 12 of STS-109. The crew included: Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, Richard Linnehan, James Newman, Michael Massimino, Mission Speicalists. The activities from other flights days can be seen on 'STS-109 Mission Highlights Resource Tape' Part 1 of 4 (internal ID 2002139471), 'STS-109 Mission Highlights Resource Tape' Part 2 of 4 (internal ID 2002137664), and 'STS-109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139476). The primary activity on flight day 8 was an EVA (extravehicular activity) by Grunsfeld and Linnehan to install a cryocooler and radiator for the NICMOS (Near Infrared Camera and Multi-Object Spectrometer) on the HST (Hubble Space Telescope). Before returning to Columbia's airlock, the astronauts, with a cloudy background, hold onto the orbiter and offer their thoughts on the significance of their mission, the HST, and spaceflight. Footage from flight day 9 includes the grappling, unbearthing, and deployment of the HST from Columbia, and the crew coordinating and videotaping Columbia's departure. Flight day 10 was a relatively inactive day, and flight day 11 includes a checkout of Columbia's aerodynamic surfaces. Columbia landed on flight day 12, which is covered by footage of the crew members speaking during reentry, and their night landing, primarily shown through the orbiter's head-up display. The video includes numerous views of the HST, as well as views of the the Galapagos Islands, Madagascar, and Southern Africa with parts of the Atlantic, Indian, and Pacific Oceans, and part of the coast of Chile. The pistol grip space tool is shown in use, and the crew answers two messages from the public, including a message to Massimino from the Fire Department of New York.

  13. STS-109 Mission Highlights Resource Tape. Part 2 of 4; Flight Days 4 & 5

    Science.gov (United States)

    2002-01-01

    This video, Part 2 of 4, shows the activities of the STS-109 crew (Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, James Newman, Richard Linnehan, Michael Massimino, Mission Specialists) during flight days 4 and 5. The activities from other flights days can be seen on 'STS-109 Mission Highlights Resource Tape' Part 1 of 4 (internal ID 2002139471), 'STS-109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139476), and 'STS-109 Mission Highlights Resource Tape' Part 4 of 4 (internal ID 2002137577). The primary activities during these days were EVAs (extravehicular activities) to replace two solar arrays on the HST (Hubble Space Telescope). Footage from flight day 4 records an EVA by Grunsfeld and Linnehan, including their exit from Columbia's payload bay airlock, their stowing of the old HST starboard rigid array on the rigid array carrier in Columbia's payload bay, their attachment of the new array on HST, the installation of a new starboard diode box, and the unfolding of the new array. The pistol grip space tool used to fasten the old array in its new location is shown in use. The video also includes several shots of the HST with Earth in the background. On flight day 5 Newman and Massimino conduct an EVA to change the port side array and diode box on HST. This EVA is very similar to the one on flight day 4, and is covered similarly in the video. A hand operated ratchet is shown in use. In addition to a repeat of the previous tasks, the astronauts change HST's reaction wheel assembly, and because they are ahead of schedule, install installation and lubricate an instrument door on the telescope. The Earth views include a view of Egypt and Israel, with the Nile River, Red Sea, and Mediterranean Sea.

  14. STS-109 Mission Highlights Resource Tape. Part 1 of 4; Flight Days 1 - 3

    Science.gov (United States)

    2002-01-01

    This video, Part 1 of 4, shows the activities of the STS-109 crew (Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, James Newman, Richard Linnehan, Michael Massimino, Mission Specialists) during flight days 1 through 3. The activities from other flight days can be seen on 'STS 109 Mission Highlights Resource Tape' Part 2 of 4 (internal ID 2002137664), 'STS 109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139471), and 'STS-109 Mission Highlights Resource Tape' Part 4 of 4 (internal ID 2002137577). The main activity recorded during flight day 1 is the liftoff of Columbia. Attention is given to suit-up, boarding, and pre-flight procedures. The pre-launch crew meal has no sound. The crew members often wave to the camera before liftoff. The jettisoning of the solid rocket boosters is shown, and the External Tank is seen as it falls to Earth, moving over African dunes in the background. There are liftoff replays, including one from inside the cockpit. The opening of the payload bay doors is seen from the rear of the shuttle's cockpit. The footage from flight day 2 shows the Flight Support System for bearthing the HST (Hubble Space Telescope). Crew preparations for the bearthing are shown. Flight day 3 shows the tracking of and approach to the HST by Columbia, including orbital maneuvers, the capture of the HST, and its lowering onto the Flight Support System. Many views of the HST are shown, including one which reveals an ocean and cloud background as the HST retracts a solar array.

  15. STS-109 Mission Highlights Resource Tape

    Science.gov (United States)

    2002-05-01

    This video, Part 1 of 4, shows the activities of the STS-109 crew (Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, James Newman, Richard Linnehan, Michael Massimino, Mission Specialists) during flight days 1 through 3. The activities from other flight days can be seen on 'STS 109 Mission Highlights Resource Tape' Part 2 of 4 (internal ID 2002137664), 'STS 109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139471), and 'STS-109 Mission Highlights Resource Tape' Part 4 of 4 (internal ID 2002137577). The main activity recorded during flight day 1 is the liftoff of Columbia. Attention is given to suit-up, boarding, and pre-flight procedures. The pre-launch crew meal has no sound. The crew members often wave to the camera before liftoff. The jettisoning of the solid rocket boosters is shown, and the External Tank is seen as it falls to Earth, moving over African dunes in the background. There are liftoff replays, including one from inside the cockpit. The opening of the payload bay doors is seen from the rear of the shuttle's cockpit. The footage from flight day 2 shows the Flight Support System for bearthing the HST (Hubble Space Telescope). Crew preparations for the bearthing are shown. Flight day 3 shows the tracking of and approach to the HST by Columbia, including orbital maneuvers, the capture of the HST, and its lowering onto the Flight Support System. Many views of the HST are shown, including one which reveals an ocean and cloud background as the HST retracts a solar array.

  16. Early evolution of a stratospheric volcanic eruption cloud as observed with TOMS and AVHRR

    Science.gov (United States)

    Schneider, D.J.; Rose, William I., Jr.; Coke, L.R.; Bluth, G.J.S.; Sprod, I.E.; Krueger, A.J.

    1999-01-01

    This paper is a detailed study of remote sensing data from the total ozone mapping spectrometer (TOMS) and the advanced very high resolution radiometer (AVHRR) satellite detectors, of the 1982 eruption of El Chicho??n, Mexico. The volcanic cloud/atmosphere interactions in the first four days of this eruption were investigated by combining ultraviolet retrievals to estimate the mass of sulfur dioxide in the volcanic cloud [Krueger et al., 1995] with thermal infrared retrievals of the size, optical depth, and mass of fine-grained (1-10 ??m radius) volcanic ash [Wen and Rose, 1994]. Our study provides the first direct evidence of gravitational separation of ash from a stratospheric, gas-rich, plinian eruption column and documents the marked differences in residence times of volcanic ash and sulfur dioxide in volcanic clouds. The eruption column reached as high as 32 km [Carey and Sigurdsson, 1986] and was injected into an atmosphere with a strong wind shear, which allowed for an observation of the separation of sulfur dioxide and volcanic ash. The upper, more sulfur dioxide-rich part of the cloud was transported to the west in the stratosphere, while the fine-grained ash traveled to the south in the troposphere. The mass of sulfur dioxide released was estimated at 7.1 ?? 109 kg with the mass decreasing by approximately 4% 1 day after the peak. The mass of fine-grained volcanic ash detected was estimated at 6.5 ?? 109 kg, amounting to about 0.7% of the estimated mass of the ash which fell out in the mapped ash blanket close to the volcano. Over the following days, 98% of this remaining fine ash was removed from the volcanic cloud, and the effective radius of ash in the volcanic cloud decreased from about 8 ??m to about 4 ??m. Copyright 1999 by the American Geophysical Union.

  17. GEODYNAMIC WAVES AND GRAVITY

    Directory of Open Access Journals (Sweden)

    A. V. Vikulin

    2015-09-01

    Full Text Available  Gravity phenomena related to the Earth movements in the Solar System and through the Galaxy are reviewed. Such movements are manifested by geological processes on the Earth and correlate with geophysical fields of the Earth. It is concluded that geodynamic processes and the gravity phenomena (including those of cosmic nature are related.  The state of the geomedium composed of blocks is determined by stresses with force moment and by slow rotational waves that are considered as a new type of movements [Vikulin, 2008, 2010]. It is shown that the geomedium has typical rheid properties [Carey, 1954], specifically an ability to flow while being in the solid state [Leonov, 2008]. Within the framework of the rotational model with a symmetric stress tensor, which is developed by the authors [Vikulin, Ivanchin, 1998; Vikulin et al., 2012a, 2013], such movement of the geomedium may explain the energy-saturated state of the geomedium and a possibility of its movements in the form of vortex geological structures [Lee, 1928]. The article discusses the gravity wave detection method based on the concept of interactions between gravity waves and crustal blocks [Braginsky et al., 1985]. It is concluded that gravity waves can be recorded by the proposed technique that detects slow rotational waves. It is shown that geo-gravitational movements can be described by both the concept of potential with account of gravitational energy of bodies [Kondratyev, 2003] and the nonlinear physical acoustics [Gurbatov et al., 2008]. Based on the combined description of geophysical and gravitational wave movements, the authors suggest a hypothesis about the nature of spin, i.e. own moment as a demonstration of the space-time ‘vortex’ properties.  

  18. The geocentric particulate distribution: Cometary, asteroidal, or space debris?

    Science.gov (United States)

    Mcdonnell, J. A. M.; Ratcliff, P. R.

    1992-01-01

    Definition of the Low Earth Orbit (LEO) particulate environment has been refined considerably with the analysis of data from NASA's Long Duration Exposure Facility (LDEF). Measurements of the impact rates from particulates ranging from sub-micron to millimetres in dimension and, especially, information on their directionality has permitted new scrunity of the sources of the particulates. Modelling of the dynamics of both bound (Earth orbital) and unbound (hyperbolic interplanetary) particulates intercepting LDEF's faces leads to the conclusion that the source is dominantly interplanetary for particle dimensions of greater than some 5 microns diameter; however the anisotropy below this dimension demands lower velocities and is compatible with an orbital component. Characteristics of the LDEF interplanetary component are compatible with familiar meteoroid sources and deep space measurements. Understanding of the orbital component which exceeds the interplanetary flux by a factor of 4 is less clear; although the very small particulates in orbit have been associated with space debris (Lawrance and Brownlee, 1986) this data conflicts with other measurements (McDonnell, Carey and Dixon, 1984) at the same epoch. By analysis of trajectories approaching the Earth and its atmosphere, we have shown that a significant contribution could be captured by aerocapture, i.e., atmospheric drag, from either asteroidal or cometary sources; such enhancement is unlikely however to provide the temporal and spatial fluctuations observed by the LDEF Interplanetary Dust Experiment (Mullholland et al. 1992). A further new mechanism is also examined, that of aerofragmentation capture, where an atmospheric grazing trajectory, which would not normally lead to capture, leads to fragmentation by thermal or mechanical shock; the microparticulates thus created can be injected in large numbers, but only into short-lifetime orbits. The concentration in one particular orbit plane, could explain the

  19. Struggles with learning about scientific models in a middle school science classroom

    Science.gov (United States)

    Loper, Suzanna Jane

    Two important goals in science education are teaching students about the nature of science and teaching students to do scientific inquiry. Learning about scientific models is central to both of these endeavors, but studies have shown that students have very flawed and limited understandings of the nature and purposes of scientific models (Carey & Smith, 1993; Grosslight, Unger, & Jay, 1991; Lederman, 1992). In this dissertation I investigate the processes of teaching and learning about scientific models in an 8th grade classroom in an urban middle school. In order to do so, I examine recordings of student and teacher talk about models across a period of two months in which students completed two independent inquiry projects, using the Inquiry Island software and curriculum (Eslinger, 2004; Shimoda, White, & Frederiksen, 2002; White, Shimoda, & Frederiksen, 2000). My analysis draws on video records of small-group work and whole-class interactions, as well as on students' written work. I find that in this classroom, students struggled to understand the nature and purpose of scientific models. I analyze episodes in the classroom talk in which models appeared to be a source of trouble or confusion, and describe the ways in which the teacher attempted to respond to these troubles. I find that in many cases students appeared to be able to produce scientific models of the proper form, yet still struggled with displaying an understanding of what a model was, or of the functions of models in scientific research. I propose directions for further research and curriculum development in order to build on these findings. In particular, I argue, we need to design ways to help students engage in scientific modeling as a social and communicative practice, and to find ways to build from their everyday reasoning and argumentation practices. My research also reinforces the importance of looking at classroom talk, not just pre- and post-assessments, in order to understand teaching and

  20. Book Reviews

    Directory of Open Access Journals (Sweden)

    R.C. Kwantes

    1978-04-01

    Full Text Available - H.E.M. Braakhuis, R.D. Bruce, El Libro de Chan K’in. INAH, Colección cientifica: lingüistica 12, Mexico 1974. 385 pp.''Los Lacandones 2: Cosmovisión maya. INAH, Publicaciones antropológicas 26, Mexico 1971. 187 pp., C. Robles, E.Ramos Chao (eds. - A. Day, Ann Kumar, Surapati, Man and Legend: A study of three Babad traditions, Australian National University Centre of Oriental studies, Oriental Monograph series. No. 20. E.J. Brill, Leiden, 1976. ix + 421 pp. - P. van Emst, Josef Franz Thiel, Grundbegriffe der Ethnologie. Vorlesungen zur Einführung. Collectanea Instituti Anthropos Vol. 16. Anthropos-Institut. St. Augustin, Haus Völker und Kulturen, 1977. 198 pp. - H.J. de Graaf, J. Kathirithamby-Wells, The British West Sumatran Presidency (1760-1785. Problems of early colonial enterprise. Penerbit Universiti Malaya, Kuala Lumpur, 1977, 270 + VII pp. - P.E. de Josselin de Jong, Iskandar Carey, Orang Asli: The aboriginal tribes of Peninsula Malaysia. Kuala Lumpur: Oxford University Press, 1976. 376 pp. Bibliography, index; 17 ills., 9 plates in colour. - S. Kooijman, Wolf Bleek, Achter de coulissen. Antropologisch veldwerk in Ghana. Terreinverkenningen in de Culturele Antropologie. Van Gorcum, Assen/Amsterdam 1978. - J.M. Pluvier, R.C. Kwantes, De ontwikkeling van de nationalistische beweging in Nederlandsch-Indië; bronnenpublikatie. Eerste stuk, 1917 - medio 1923. Groningen, Tjeenk Willink, 1975. xxxv + 625 blz. Afkortingen, woordenlijst, registers. - P. van de Velde, Wim van Dooren, Dialektiek, een historische en systematische inleiding. Van Gorcum, Assen/Amsterdam, 1977. X + 142 blz. - J.A. Zevenbergen, M.B. Hooker, Legal pluralism, an introduction to colonial and neo-colonial laws. Oxford: Clarendon Press, 1975. 601 pp.

  1. Computational studies of two-phase cement-CO2-brine interaction in wellbore environments

    Energy Technology Data Exchange (ETDEWEB)

    Carey, James William [Los Alamos National Laboratory; Lichtner, Peter C [Los Alamos National Laboratory

    2009-01-01

    Wellbore integrity is essential to ensuring long-term isolation of buoyant supercritical CO{sub 2} during geologic sequestration of CO{sub 2}. In this report, we summarize recent progress in numerical simulations of cement-brine-CO{sub 2} interactions with respect to migration of CO{sub 2} outside of casing. Using typical values for the hydrologic properties of cement, caprock (shale) and reservoir materials, we show that the capillary properties of good quality cement will prevent flow of CO{sub 2} into and through cement. Rather, CO{sub 2}, if present, is likely to be confined to the casing-cement or cement-formation interfaces. CO{sub 2} does react with the cement by diffusion from the interface into the cement, in which case it produces distinct carbonation fronts within the cement. This is consistent with observations of cement performance at the CO{sub 2}-enhanced oil recovery SACROC Unit in West Texas (Carey et al. 2007). For poor quality cement, flow through cement may occur and would produce a pattern of uniform carbonation without reaction fronts. We also consider an alternative explanation for cement carbonation reactions as due to CO{sub 2} derived from caprock. We show that carbonation reactions in cement are limited to surficial reactions when CO{sub 2} pressure is low (< 10 bars) as might be expected in many caprock environments. For the case of caprock overlying natural CO{sub 2} reservoirs for millions of years, we consider Scherer and Huet's (2009) hypothesis of diffusive steady-state between CO{sub 2} in the reservoir and in the caprock. We find that in this case, the aqueous CO{sub 2} concentration would differ little from the reservoir and would be expected to produce carbonation reaction fronts in cements that are relatively uniform as a function of depth.

  2. Pain is associated with prospective memory dysfunction in multiple sclerosis.

    Science.gov (United States)

    Miller, Ashley K; Basso, Michael R; Candilis, Philip J; Combs, Dennis R; Woods, Steven Paul

    2014-01-01

    Prospective memory (PM) pertains to the execution of a future goal or behavior. Initial research implies that people with multiple sclerosis (MS) are apt to show impaired prospective memory for activities of daily living. Yet, PM impairment does not occur in all people with MS. Thus, some other variable besides disease status alone may contribute to PM dysfunction in people with MS. Chronic pain may be such a variable. Approximately 50-70% of people with MS experience significant pain, and such pain has been thought to diminish memory function. To investigate this possibility, 96 patients with MS and 29 healthy subjects were administered the Memory for Intentions Screening Test (MIST; Woods, S. P., Iudicello, J. E., Moran, L. M, Carey, C. L., Dawson, M. S., & Grant, I. (2008). HIV-associated prospective memory impairment increases risk of dependence in everyday functioning. Neuropsychology, 22, 110-117.), a well-validated measure of prospective memory, and the Medical Outcomes Study Pain Effects Scale (PES; Fischer, J. S., Rudick, R. A., Cutter, G. R., & Reingold, S. C. (1999). The multiple sclerosis functional composite measure (MSFC): An integrated approach to MS clinical outcome assessment. National MS Society Clinical Outcomes Assessment Task Force. Multiple Sclerosis, 5, 244-250.) to assess chronic pain. After controlling for demographic variables and disability severity, subjective pain accounted for significant variance in PM, particularly for time-based intentions over sustained delay periods. These data accord well with assertions that pain may degrade ability to remember new intentions and suggests that pain is associated with PM dysfunction in people with MS. PMID:25338929

  3. What makes a movement a gesture?

    Science.gov (United States)

    Novack, Miriam A; Wakefield, Elizabeth M; Goldin-Meadow, Susan

    2016-01-01

    Theories of how adults interpret the actions of others have focused on the goals and intentions of actors engaged in object-directed actions. Recent research has challenged this assumption, and shown that movements are often interpreted as being for their own sake (Schachner & Carey, 2013). Here we postulate a third interpretation of movement-movement that represents action, but does not literally act on objects in the world. These movements are gestures. In this paper, we describe a framework for predicting when movements are likely to be seen as representations. In Study 1, adults described one of three scenes: (1) an actor moving objects, (2) an actor moving her hands in the presence of objects (but not touching them) or (3) an actor moving her hands in the absence of objects. Participants systematically described the movements as depicting an object-directed action when the actor moved objects, and favored describing the movements as depicting movement for its own sake when the actor produced the same movements in the absence of objects. However, participants favored describing the movements as representations when the actor produced the movements near, but not on, the objects. Study 2 explored two additional features-the form of an actor's hands and the presence of speech-like sounds-to test the effect of context on observers' classification of movement as representational. When movements are seen as representations, they have the power to influence communication, learning, and cognition in ways that movement for its own sake does not. By incorporating representational gesture into our framework for movement analysis, we take an important step towards developing a more cohesive understanding of action-interpretation. PMID:26513354

  4. Explanations, mechanisms, and developmental models: Why the nativist account of early perceptual learning is not a proper mechanistic model

    Directory of Open Access Journals (Sweden)

    Radenović Ljiljana

    2013-01-01

    Full Text Available In the last several decades a number of studies on perceptual learning in early infancy have suggested that even infants seem to be sensitive to the way objects move and interact in the world. In order to explain the early emergence of infants’ sensitivity to causal patterns in the world some psychologists have proposed that core knowledge of objects and causal relations is innate (Leslie & Keeble 1987, Carey & Spelke, 1994; Keil, 1995; Spelke et al., 1994. The goal of this paper is to examine the nativist developmental model by investigating the criteria that a mechanistic model needs to fulfill if it is to be explanatory. Craver (2006 put forth a number of such criteria and developed a few very useful distinctions between explanation sketches and proper mechanistic explanations. By applying these criteria to the nativist developmental model I aim to show, firstly, that nativists only partially characterize the phenomenon at stake without giving us the details of when and under which conditions perception and attention in early infancy take place. Secondly, nativist start off with a description of the phenomena to be explained (even if it is only a partial description but import into it a particular theory of perception that requires further empirical evidence and further defense on its own. Furthermore, I argue that innate knowledge is a good candidate for a filler term (a term that is used to name the still unknown processes and parts of the mechanism and is likely to become redundant. Recent extensive research on early intermodal perception indicates that the mechanism enabling the perception of regularities and causal patterns in early infancy is grounded in our neurophysiology. However, this mechanism is fairly basic and does not involve highly sophisticated cognitive structures or innate core knowledge. I conclude with a remark that a closer examination of the mechanisms involved in early perceptual learning indicates that the nativism

  5. Developmental neuropsychological assessment of 4- to 5-year-old children born following Preimplantation Genetic Diagnosis (PGD): A pilot study.

    Science.gov (United States)

    Sacks, Gilat Chaya; Altarescu, Gheona; Guedalia, Judith; Varshaver, Irit; Gilboa, Tal; Levy-Lahad, Ephrat; Eldar-Geva, Talia

    2016-01-01

    The purpose of this pilot study was to evaluate developmental neuropsychological profiles of 4- to 5-year-old children born after Preimplantation Genetic Diagnosis (PGD). Twenty-seven participants received a neurological examination and a battery of neuropsychological assessments including Wechsler Preschool & Primary Scale of Intelligence - Third Edition (WPPSI-III; cognitive development), Preschool Language Scale, Fourth Edition (PLS-4; language development), Wide Range Assessment of Visual Motor Abilities (visual motor abilities), Childhood Autism Rating Scales II (a screening test for autistic spectrum disorders), and the Miles ABC Test (ocular dominance). Parental questionnaires included the Behavior Rating Inventory of Executive Function Preschool Version (BRIEF-P; executive function), Child Behavior Checklist (CBCL) and the Carey Temperament Scales Behavioral Style Questionnaire (socioemotional development and temperament), and the Vineland Adaptive Behavior Scales, Interview Edition, Second Edition (general adaptive behavior). Subjects' tests results were compared to each test's norms. Children born after PGD demonstrated scores within the normal or above-normal ranges for all developmental outcomes (mean ± SD): WPPSI-III-VIQ 107.4 ± 14.4 (p = .013), PLS-4-Total 113.2 ± 12.4, p children had a significant difference between their VIQ and PIQ scores (compared to 27% in the general population). One subject was found to show possible signs of autistic spectrum disorder, although a family history of autism was noted. In conclusion, in this pilot study, children assessed at age 4-5 years and conceived after PGD displayed developmental neuropsychological outcomes within normal limits as compared to their chronologic peers. A larger study is needed to evaluate and follow the neuropsychological development of children born after PGD. PMID:25774437

  6. Using magnons to probe spintronic materials properties

    Science.gov (United States)

    McMichael, Robert

    2012-02-01

    For many spin-based electronic devices, from the read sensors in modern hard disk drives to future spintronic logic concepts, the device physics originates in spin polarized currents in ferromagnetic metals. In this talk, I will describe a novel ``Spin Wave Doppler'' method that uses the interaction of spin waves with spin-polarized currents to determine the spin drift velocity and the spin current polarization [1]. Owing to differences between the band structures of majority-spin and minority-spin electrons, the electrical current also carries an angular momentum current and magnetic moment current. Passing these coupled currents though a magnetic wire changes the linear excitations of the magnetization, i.e spin waves. Interestingly, the excitations can be described as drifting ``downstream'' with the electron flow. We measure this drift velocity by monitoring the spin-wave-mediated transmission between pairs of periodically patterned antennas on magnetic wires as a function of current density in the wire. The transmission frequency resonance shifts by 2πδf = vk where the drift velocity v is proportional to both the current density and the current polarization P. I will discuss measurements of the spin polarization of the current in Ni80Fe20 [2], and novel alloys (CoFe)1-xGax [3] and (Ni80Fe20)1-xGdx [4]. [4pt] [1] V. Vlaminck and M. Bailleul, Science, 322, 410 (2008) [0pt] [2] M. Zhu, C. L. Dennis, and R. D. McMichael, Phys. Rev. B, 81, 140407 (2010). [0pt] [3] M. Zhu, B. D. Soe, R. D. McMichael, M. J. Carey, S. Maat, and J. R. Childress, Appl. Phys. Lett., 98, 072510 (2011). [0pt] [4] R. L. Thomas, M. Zhu, C. L. Dennis, V. Misra and R. D. McMichael, J. Appl. Phys., 110, 033902 (2011).

  7. Fish oil supplementation associated with decreased cellular degeneration and increased cellular proliferation 6 weeks after middle cerebral artery occlusion in the rat

    Directory of Open Access Journals (Sweden)

    Pascoe MC

    2015-01-01

    Full Text Available Michaela C Pascoe,1 David W Howells, 2David P Crewther,1 Leeanne M Carey,2,3 Sheila G Crewther4 1Brain Sciences Institute, Swinburne University, ²Florey Institute of Neuroscience and Mental Health, University of Melbourne, 3Department of Occupational Therapy, School of Allied Health La Trobe University, 4School of Psychological Science, La Trobe University, Melbourne, VIC, Australia Abstract: Anti-inflammatory long-chain omega-3 polyunsaturated fatty acids (n-3-LC-PUFAs are both neuroprotective and have antidepressive effects. However the influence of dietary supplemented n-3-LC-PUFAs on inflammation-related cell death and proliferation after middle cerebral artery occlusion (MCAo-induced stroke is unknown. We have previously demonstrated that anxiety-like and hyperactive locomotor behaviors are reduced in n-3-LC-PUFA-fed MCAo animals. Thus in the present study, male hooded Wistar rats were exposed to MCAo or sham surgeries and examined behaviorally 6 weeks later, prior to euthanasia and examination of lesion size, cell death and proliferation in the dentate gyrus, cornu ammonis region of the hippocampus of the ipsilesional hemispheres, and the thalamus of the ipsilesional and contralesional hemispheres. Markers of cell genesis and cell degeneration in the hippocampus or thalamus of the ipsilesional hemisphere did not differ between surgery and diet groups 6 weeks post MCAo. Dietary supplementation with n-3-LC-PUFA decreased cell degeneration and increased cell proliferation in the thalamic region of the contralesional hemisphere. MCAo–associated cell degeneration in the hippocampus and thalamus positively correlated with anxiety-like and hyperactive locomotor behaviors previously reported in these animals. These results suggest that anti-inflammatory n-3-LC-PUFA supplementation appears to have cellular protective effects after MCAo in the rat, which may affect behavioral outcomes. Keywords: apoptosis, polyunsaturated fatty acids

  8. Role of male partners in the prevention of mother-to-child HIV transmission

    Directory of Open Access Journals (Sweden)

    Osoti A

    2014-07-01

    Full Text Available Alfred Osoti,1–3 Hannah Han,4 John Kinuthia,1,5 Carey Farquhar3,4,6 1Department of Obstetrics and Gynecology, University of Nairobi, Nairobi, Kenya; 2Department of Obstetrics and Gynecology, AIC Kijabe Hospital, Kijabe, Kenya; 3Department of Epidemiology, 4Department of Global Health, University of Washington, Seattle, USA; 5Department of Obstetrics and Gynecology, Kenyatta National Hospital, Nairobi, Kenya; 6Department of Medicine, University of Washington, Seattle, USA Abstract: There is emerging evidence that in resource-limited settings with a high human immunodeficiency virus (HIV burden, male partner involvement in prevention of mother-to-child HIV transmission (PMTCT is associated with improved uptake of effective interventions and infant HIV-free survival. There is also increasing evidence that male partner involvement positively impacts non-HIV related outcomes, such as skilled attendance at delivery, exclusive breastfeeding, uptake of effective contraceptives, and infant immunizations. Despite these associations, male partner involvement remains low, especially when offered in the standard antenatal clinic setting. In this review we explore strategies for improving rates of antenatal male partner HIV testing and argue that the role of male partners in PMTCT must evolve from one of support for HIV-infected pregnant and breastfeeding women to one of comprehensive engagement in prevention of primary HIV acquisition, avoidance of unintended pregnancies, and improved HIV-related care and treatment for the HIV-infected and uninfected women, their partners, and children. Involving men in all components of PMTCT has potential to contribute substantially to achieving virtual elimination of mother-to-child HIV transmission; promoting partner-friendly programs and policies, as well as pursuing research into numerous gaps in knowledge identified in this review, will help drive this process. Keywords: male involvement, limited-resource settings

  9. Humans (really are animals: Picture-book reading influences five-year-old urban children’s construal of the relation between humans and non-human animals

    Directory of Open Access Journals (Sweden)

    SandraRWaxman

    2014-03-01

    Full Text Available What is the relation between humans and nonhuman animals? From a biological perspective, we view humans as one species among many, but in the fables and films we create for children, we often offer an anthropocentric perspective, imbuing nonhuman animals with human-like characteristics. What are the consequences of these distinctly different perspectives on children’s reasoning about the natural world? Some have argued that children universally begin with an anthropocentric perspective and that acquiring a biological perspective requires a basic conceptual change (cf. Carey 1985. But recent work reveals that this anthropocentric perspective, evidenced in urban five-year-olds, is not evident in three-year-olds (Herrmann et al. 2010. This indicates that the anthropocentric perspective is not an obligatory first step in children’s reasoning about biological phenomena. In the current paper, we introduced a priming manipulation to assess whether five-year-olds’ reasoning about a novel biological property is influenced by the perspectives they encounter in children’s books. Just before participating in a reasoning task, each child read a book about bears with an experimenter. What varied was whether bears were depicted from an anthropomorphic (Berenstain Bears or biological perspective (Animal Encyclopedia. The priming had a dramatic effect. Children reading the Berenstain Bears showed the standard anthropocentric reasoning pattern, but those reading the Animal Encyclopedia adopted a biological pattern. This offers evidence that urban five-year-olds can adopt either a biological or a human-centered stance, depending upon the context. Thus, children’s books and other media are double-edged swords. Media may (inadvertently support human-centered reasoning in young children, but may also be instrumental in redirecting children’s attention to a biological model.

  10. Advantages and disadvantages of college drinking in students' own words: content analysis of the decisional balance worksheet.

    Science.gov (United States)

    Collins, Susan E; Kirouac, Megan; Taylor, Emily; Spelman, Philip J; Grazioli, Véronique; Hoffman, Gail; Haelsig, Laura; Holttum, Jessica; Kanagawa, Ami; Nehru, Mayanka; Hicks, Jennifer

    2014-09-01

    The decisional balance worksheet (DBW), an open-ended measure of motivation to change, may be used to record the perceived advantages and disadvantages of substance use as well as alternative behaviors. Recent findings have indicated that the open-ended DBW can be quantified to validly reflect college students' level of motivation to reduce their drinking (Collins, Carey, & Otto, 2009). The goal of the current study was to enhance our understanding of college students' perceived advantages and disadvantages of drinking by qualitatively examining the content of their decisional balance. Participants were undergraduate college students at a 4-year university (N = 760) who participated in a randomized controlled trial of online brief motivational interventions. Using the DBW, participants recorded the advantages and disadvantages of their current drinking. Conventional content analysis methods were used to extract common themes. Social, enjoyment, and psychological reasons were the most commonly mentioned advantages of drinking, whereas physical side effects, expense and interference with goals were the most commonly mentioned disadvantages of drinking. These findings show that college students primarily use alcohol for enjoyment, particularly in social situations, as well as for coping with stress and social anxiety. On the other hand, many college students report having physical side effects from drinking as well as other kinds of concerns (e.g., expense, calories). Findings suggest that using the open-ended DBW may result in a more client-centered and accurate representation of what college students perceive as advantages and disadvantages to drinking than established, Likert-scale measures of decisional balance. PMID:25134033

  11. Petrofabric changes in heated and irradiated salt from Project Salt Vault, Lyons, Kansas

    International Nuclear Information System (INIS)

    Rock salt was heated and irradiated in situ by implanted radioactive wastes during the Project Salt Vault experiment which was carried out at Lyons, Kansas, in the abandoned Carey Salt mine between 1965 and 1967. It was found that irradiation results in coloration of the salt, producing colors ranging from blue-black nearest the radiation source, to pale blue and purple farther from the source. Bleached areas are common in the radiation-colored salt, many representing trails produced by the migration of fluid inclusions towards the heat source. These visible trails are thought to have formed during the cooling down of the salt after the removal of the heaters and radiation sources. The distribution of primary structures in the salt suggests that little migration, if any, occurred during the course of the experiment. It is proposed that radiolysis of the brine within the inclusions may have led to the production of gases which impeded or prevented migration. Evidence of strain was observed in slip planes at 4 in. (10 cm) and between 5.5 and 10 in. (13.5 to 25.4 cm) from the array hole. Deformed bleached areas in the salt between the areas were slip planes are developed suggest that slight plastic deformation or flow may have occurred at 6 in. (15 cm) from the array hole. Differential thermal analysis shows that the maximum amount of stored energy also occurs at 6 in. (15 cm) from the array hole. This region may therefore represent the zone where the combined effect of stress and radiation was greatest

  12. Aquatic Plant Diversity and Its Changes in Changhu Lake of Hubei Province in China%长湖水生植物多样性及其变化

    Institute of Scientific and Technical Information of China (English)

    彭映辉; 简永兴; 倪乐意; 王建波; 陈家宽

    2003-01-01

    研究了湖北省第三大湖泊长湖水生植物多样性的现状及其长期变化,并探讨了多样性丧失的机理及多样性恢复与保护的有效途径.主要结论:(1)长湖现有水生植物98种,多度最大的是微齿眼子菜(Potamogeton maackianus)、密齿苦草(Vallisneria denseserrulata)、野菱(Trapa incisa)、双角菱(T.bispinosa)、菹草(Potamogeton crispus)、紫萍(Spirodela polyrhiza)、穗花狐尾藻(Myriophyllum spicatum)、轮叶黑藻(Hydrilla verticillata)、满江红(Azolla imbricata).(2)长湖现有水生植物群丛类型14个,群落物种多样性指数最高的是芡实+野菱+双角菱群丛 (Euryale ferox+Trapa incisa+T.bispinosa Ass.),其次为轮叶黑藻+密齿苦草+大茨藻群丛 (Hydrilla verticillata+Vallisneria denseserrulata+Najas marioa Ass.) 与竹叶眼子菜+穗花狐尾藻群丛 (Potamogeton malaianus+Myriophyllum spicatum Ass.).(3)20年来,已有6种水生植物和7个水生植物群丛类型从长湖消失,植被覆盖率下降了54.85%,全湖平均单位面积生物量下降了69.78%.(4)多样性丧失的主要原因是过度养殖、过度打草和耙捞作业,以及由此导致的湖水透明度的大幅度下降.(5)多样性恢复的有效途径是政府部门的行政干预与经济支持.

  13. Nutritional profile of phytococktail from trans-Himalayan plants.

    Directory of Open Access Journals (Sweden)

    Priyanka Dhar

    Full Text Available We estimated the nutritive value, vitamin content, amino acid composition, fatty acid content, and mineral profile of a phytococktail comprising sea buckthorn (Hippophae rhamnoides, apricot (Prunus armeniaca, and roseroot (Rhodiola imbricata from trans-Himalaya. The free vitamin forms in the phytococktail were determined by rapid resolution liquid chromatography/tandem mass spectrometry (RRLC-MS/MS. Vitamin E and B-complex vitamins were detected as the principle vitamins. Reversed-phase high performance liquid chromatography (RP-HPLC with pre-column derivatization was used for identification and quantification of amino acids. Eight essential and eleven non-essential amino acids were quantified, and the content ranged between 76.33 and 9485.67 µg/g. Among the essential amino acids, L-methionine, L-phenylalanine, L-lysine, L-leucine, and L-histidine were found to be the dominant contributors. We also quantified the fatty acids in the phytococktail by using gas chromatography coupled with a flame ionization detector (GC-FID with fatty acid methyl esters (FAMEs derivatization. The analysis revealed the presence of 4 major fatty acids contributing to the total lipid content. Palmitic acid was found to be the rich source of saturated fatty acid (SFA and constituted ∼31% of the total lipid content. Among the unsaturated fatty acids (UFAs, palmitoleic acid (43.47%, oleic acid (20.89%, and linoleic acid (4.31% were prominent. The mineral profiling was carried out by inductively coupled plasma optical emission spectrometer (ICP-OES, and it was found to contain a number of important dietary mineral elements. The harsh climatic conditions, difficult terrain, and logistic constraints at high altitude regions of Indian trans-Himalayan cold desert lead to the scarcity of fresh fruits and vegetables. Therefore, the source of multiple vitamins, essential amino acids, fatty acids, and dietary minerals from the phytococktail would provide great health benefit

  14. Water use in four model tropical plant associations established in the lowlands of Costa Rica.

    Science.gov (United States)

    Gutiérrez-Soto, Marco V; Ewel, John J

    2008-12-01

    We examined soil water use patterns of four model plant associations established in the North Caribbean lowlands of Costa Rica by comparing the stable hydrogen isotope composition, deltaD, in xylem sap and in soil water at different depths, under rainy and dry conditions. Four 5-year-old model plant associations composed of 2 tree species (Hyeronima alchorneoides and Cedrela odorata) having different architecture and phenology were studied. Average tree height was 8.9 and 7.6 m, respectively. Each tree species was grown in monoculture and in polyculture with 2 perennial monocotyledons (Euterpe oleracea and Heliconia imbricata). Maximum rooting depth at the time of 6D determination was approximately 2 m for almost all species. Most roots of all species were concentrated in the upper soil layers. Stomatal conductance to water vapor (gS) was higher in the deciduous C. odorata than in the evergreen H. alchorneoides; within each species, g, did not differ when the trees were grown in mono or in polyculture. During the rainy season, gradients in soil water 6D were not observed. Average rainy season xylem sap deltaD did not differ among members of the plant combinations tested (-30% per thousand), and was more similar to deltaD values of shallow soil water. Under dry conditions, volumetric soil water content declined from 50 to approximately 35%, and modest gradients in soil water deltaD were observed. Xylem sap deltaD obtained during dry conditions was significantly lower than rainy season values. Xylem sap deltaD of plants growing in the four associations varied between -9 and -22% per hundred, indicating that shallow water was predominantly absorbed during the dry period too. Differences in xylem sap deltaD of trees and monocots were also detected, but no significant patterns emerged. The results suggest that: (a) the plant associations examined extracted water predominantly from shallow soil layers (<1 m), (b) the natural isotopic variation in soil and plant water at

  15. Species and rotation frequency influence soil nitrogen in simplified tropical plant communities.

    Science.gov (United States)

    Ewel, John J

    2006-04-01

    Among the many factors that potentially influence the rate at which nitrogen (N) becomes available to plants in terrestrial ecosystems are the identity and diversity of species composition, frequency of disturbance or stand turnover, and time. Replicated suites of investigator-designed communities afforded an opportunity to examine the effects of those factors on net N mineralization over a 12-year period. The communities consisted of large-stature perennial plants, comprising three tree species (Hyeronima alchorneoides, Cedrela odorata, and Cordia alliodora), a palm (Euterpe oleracea), and a large, perennial herb (Heliconia imbricata). Trees were grown in monoculture and in combination with the other two life-forms; tree monocultures were subjected to rotations of one or four years, or like the three-life-form systems, left uncut. The work was conducted on fertile soil in the humid lowlands of Costa Rica, a site with few abiotic constraints to plant growth. Rates of net N mineralization and nitrification were high, typically in the range of 0.2-0.8 microg x g(1) x d(-1), with net nitrification slightly higher than net mineralization, indicating preferential uptake of ammonium (NH4+) by plants and microbes. Net rates of N mineralization were about 30% lower in stands of one of the three tree species, Hyeronima, than in stands of the other two. Contrary to expectations, short-rotation management (one or four years) resulted in higher net rates of N mineralization than in uncut stands, whether the latter were composed of a single tree species or a combination of life-forms. Neither additional species richness nor replenishment of leached N augmented mineralization rates. The net rate at which N was supplied tended to be lowest in stands where demand for N was highest. Careful choice of species, coupled with low frequency of disturbance, can lead to maintenance of N within biomass and steady rates of within-system circulation, whereas pulses, whether caused by cutting

  16. Radiation countermeasures from Himalayan herbs - an update

    International Nuclear Information System (INIS)

    A successful radioprotector is the one, which essentially renders protection from the multi-organ dis-function syndrome (MODS) caused by the total body exposure to ionizing radiation. Our rationale is that and instead of a single molecule, a group of molecules/compounds working synergistically can combat the MODS more effectively. Plant extracts offer natural combinations of a plethora of compounds, which act through different mechanisms and are, therefore, the ideal choice. Plants of Himalayan regions have survived under extreme climatic conditions through millions of years and are expected to harbor a battery of anti-stress adaptive molecules offering survival benefits. Our group is actively engaged in developing composite herbal radioprotective preparations from Himalayan Plants. This group is working to develop radiation countermeasures by tapping the essential complex phytochemicals from the plants inhabiting extreme climatic zones of Himalayas. In our laboratory, systematic studies were undertaken to investigate some of these plants located at high altitude regions of Himalayas viz. Hippophae rhamnoides, Rhodiola imbricata and Podophylium hexandruin. The most effective preparation from each of these plants individually, could provide more than 80% survival benefit to the irradiated (10 Gy) mice population against zero per cent survival in non-drug treated irradiated (10 Gy) mice population. It was observed that whole extracts of plant provided much better protection than the partial extracts/fractions. It was also observed that some of the partial extracts/fractions although, provided much higher survival benefits, yet were found to be unsuitable for drug development due to much higher mutagenic and/or recombinogenic effects in comparison to the whole extracts, One of the preparations from leaves of Hippophae rhamnoides (drug) showed more than 90% survival benefits in the irradiated mice population. Only one time intra-peritoneal administration of the drug

  17. The Corporate Assault on Democracy

    Directory of Open Access Journals (Sweden)

    Sharon Beder

    2008-01-01

    Full Text Available The revolutionary shift that we are witnessing at the beginning of the 21st Century from democracy to corporate rule is as significant as the shift from monarchy to democracy, which ushered in the modern age of nation states. It represents a wholesale change in cultural values and aspirations.This eclipse of democratic values by corporate values is not a natural evolution but the consequence of a deliberate strategy employed by corporate executives who have combined their financial and political resources to spread free market ideology. Corporations, individually and in concert, have utilised all the major communication institutions of a modern society – including the media and education – to shape community beliefs, values and behaviour. This has enabled corporations ‘to enthral and becloud the understanding’ of large numbers of citizens[1] so that it is commonly believed that large corporations are benevolent institutions that should be minimally regulated because what is good for them is good for society as a whole.Throughout the 20th Century business associations and coalitions coordinated mass propaganda campaigns that combined sophisticated public relations techniques developed in 20th Century America with revitalised free market ideology originating in 18th Century Europe. The purpose of this propaganda onslaught has been to persuade a majority of people that it is in their interests to eschew their own power as workers and citizens, and forego their democratic right to restrain and regulate business activity. As a result the political agenda is now largely confined to policies aimed at furthering business interests.The weight of corporate propaganda has been augmented by the growth of business networks and coalitions aimed at shaping policy outcomes. Alex Carey, author of Taking the Risk out of Democracy, argued that the 20th Century has seen three related developments; ‘the growth of democracy, the growth of corporate power

  18. The Arctic Circle

    Science.gov (United States)

    McDonald, Siobhan

    2016-04-01

    My name is Siobhan McDonald. I am a visual artist living and working in Dublin. My studio is based in The School of Science at University College Dublin where I was Artist in Residence 2013-2015. A fascination with time and the changeable nature of landmass has led to ongoing conversations with scientists and research institutions across the interweaving disciplines of botany, biology and geology. I am developing a body of work following a recent research trip to the North Pole where I studied the disappearing landscape of the Arctic. Prompted by my experience of the Arctic shelf receding, this new work addresses issues of the instability of the earth's materiality. The work is grounded in an investigation of material processes, exploring the dynamic forces that transform matter and energy. This project combines art and science in a fascinating exploration of one of the Earth's last relatively untouched wilderness areas - the High Arctic to bring audiences on journeys to both real and artistically re-imagined Arctic spaces. CRYSTALLINE'S pivotal process is collaboration: with The European Space Agency; curator Helen Carey; palaeontologist Prof. Jenny McElwain, UCD; and with composer Irene Buckley. CRYSTALLINE explores our desire to make corporeal contact with geological phenomena in Polar Regions. From January 2016, in my collaboration with Jenny McElwain, I will focus on the study of plants and atmospheres from the Arctic regions as far back as 400 million years ago, to explore the essential 'nature' that, invisible to the eye, acts as imaginary portholes into other times. This work will be informed by my arctic tracings of sounds and images recorded in the glaciers of this disappearing frozen landscape. In doing so, the urgencies around the tipping of natural balances in this fragile region will be revealed. The final work will emerge from my forthcoming residency at the ESA in spring 2016. Here I will conduct a series of workshops in ESA Madrid to work with

  19. Efficacy of a post-secondary environmental science education program on the attitude toward science of a group of Mississippi National Guard Youth ChalleNGe Program students

    Science.gov (United States)

    Smith, William Bradford, Jr.

    The National Guard Youth ChalleNGe Program (ChalleNGe) is a 17 month quasi-military training program authorized by Congress in the 1993 Defense Authorization Bill designed to improve life skills, education levels, and employment potential of 16--18 year old youth who drop out of high school. ChalleNGe is currently operational in 27 states/territories with the focus of this study on the Mississippi National Guard Program operated at Camp Shelby, Mississippi. During the five month residential portion of the program students are guided through an eight step process designed to meet the goals of improving life skills, education levels, and employment potential while ultimately leading to completion of high school equivalency credentials followed by a 12 month mentoring phase to encourage and track progress toward goals. The purpose of this study was to investigate the attitude toward science of a group of students enrolled in the ChalleNGe Program at Camp Shelby (ChalleNGe). The GED test is administered approximately two months into the residential phase of the program. While the program boasts an overall GED pass rate of nearly 80%, approximately 30--35% of students successfully complete the initial offering of the GED. As high school graduates, these students are offered college courses through William Carey College in Hattiesburg, Mississippi. Twenty four students elected to take the Introduction to Environmental Science course and formed the experimental group while 24 other students who passed the GED comprised the control group. Each group was administered the Scientific Attitude Inventory II, a 40 statement instrument with Likert Scale responses, as a pretest. Paired samples t-tests indicated no significant difference in attitude toward science between the experimental and control groups on the pretest. Following the two week Introduction to Environmental Science course for the experimental group, both groups were post tested. As predicted, the attitude toward

  20. 兩性教育議題網路教材之設計與發展 : 以「兒童性侵害防治網」為例 The Development and Design of Web-based Instruction Courseware for Elementary Students on Gender Education

    Directory of Open Access Journals (Sweden)

    Shin-Yi Ling

    2003-06-01

    Full Text Available 資訊科技已為現今教育的趨勢,成為教育改革中的一個要點,如:日本在推動九年計劃,讓學生熟悉多媒體的學習環境;歐盟推動「資訊社會中的學習」計劃,加強網路的建構並訓練老師發展教學軟體;美國將所有中小學連上網際網路列為西元兩千年前應完成的優先工作;我國更於民國87年公佈 「國民教育階段九年一貫課程總綱綱要」,強調資訊科技融入各科教學。在「中小學資訊教育總藍圖總綱」,期望能夠透過資訊融入教學,達到「資訊隨手得,主動學習樂;合作創新意,知識伴終生」的願景。針對在傳統上我國中小學教師對於兩性教育議題感欠缺優質教材的需求下,筆者應用系統化教學設計原則,希冀設計符合學童的兩性議題的學習網站,破除過往的舊式觀念,營造出一個鼓勵邀請但不強迫的環境,讓教與學可以更為自然、順暢且提供教師一項教學資源的應用。The purpose of this web-based instruction project was designed to fulfill the needs of elementary students regarding gender education issues. World-Wide-Web can be a very useful delivery tool to share information about activities and resources; support teacher s instruction; and train students to follow guidelines to have correct knowledge on gender-sex issues The process of instructional design of this web-based project was also described. Using Dick & Carey s ISD model this web-based courseware was developed and implemented in a very effective multimedia presentation way.

  1. The effect of interfacial evaporation on heat and mass transfer of falling liquid film

    Institute of Scientific and Technical Information of China (English)

    WANG; Buxuan; (

    2001-01-01

    [1]Wasden, F.K., Dukler, A.E., Insight into the hydrodynamics of free falling wavy films, AIChE J., 1989, 35(2): 187.[2]Jayanti, S., Hewitt, G.F., Hydrodynamics and heat transfer of wavy thin film flow, Int. J. Heat Mass Transfer, 1997, 40(10): 179.[3]Seban, R.A., Faghri, A., Evaporation and heating with turbulent falling liquid films, ASME J. Heat Transfer, 1976, 98C: 315.[4]Yang, W.M., Evaporation cooling of liquid film in turbulent mixed convection channel flows, Int. J. Heat Mass Transfer, 1998, 41(23): 3719.[5]Wang, B.X., Zhang, J.T., Peng, X.F., Experimental study on the dryout heat flux of falling liquid film, accepted by Int. J. Heat Mass Transfer as HMT# 2507.[6]Udell, K.S., Heat transfer in porous media heated from above with evaporation, condensation, and capillary effects, ASME J. Heat Transfer, 1983, 105: 485.[7]Carey, V.P., Liquid-Vapor Phase-Change Phenomena——An Introduction to the Thermophysics of Vaporization and Conduction Processes in Heat Transfer Equipment, Washington: Hemisphere Publishing Corporation, 1992, 112.[8]Eames, I.W., Marr, N.J., Sabir, H., The evaporation coefficient of water: a review, Int. J. Heat Mass Transfer, 1997, 40(12): 2963.[9]Israelachvili, J.N., Intermolecular and Surface Forces, San Diego: Academic Press, 1990, 16-30.[10]Holman, J.P., Heat Transfer, 5th ed., Tokyo: McGraw-Hill, Inc, 1981.[11]Zhang, J.T., Wang, B.X., Peng, X.F., Falling liquid film thickness measurement by optical-electronic method, Rev. Scientific Instruments, 2000, 71(4): [12]Zhang, J.T., Wang, B.X., Peng, X.F., Investigation on the interfacial evaporation of falling liquid film with wall heating, accepted by J. Tsinghua University.[13]Fujita, T., Ueda, T., Heat transfer to falling liquid films and film breakdown, Int. J. Heat Mass Transfer, 1978, 21: 97.[14]Bohn, M.S., Davis, S.H., Thermocapillary breakdown of falling liquid films at high Reynolds numbers, Int. J. Heat Masss Transfer, 1993, 36

  2. 脑瘫儿童的气质特征的调查研究%A survey of temperament characteristic of cerebral palsy children

    Institute of Scientific and Technical Information of China (English)

    余文玉; 肖农; 杨玉亭; 张际; 张轶; 李邦惠

    2011-01-01

    Objective: To search relationship between different temperament styles and children with cerebral palsy, in order to provide scientific bases for taking measures and psychological intervention to improve the affective disorder of children with CP. Methods: 80 children diagnosed as cerebral palsy and 160 normal children with Revised Carey Temperament scale were assessed. Results: Difference in temperament distribution was found between CP children and normal children ( P < 0.05 ). The proportion of difficult nurturing type, difficult and medium type and slow startup was higher in CP children. Compared with normal children, the temperament scores of phobotaxis, adaptability, mental state and perdurability were respectively different in CP children ( P < 0.01 ). Conclusion:Cerebral plasy has close connection with the temperament. The temperament of children with cerebral palsy is more negative than that of normal children. The children with cerebral palsy have close connection with temperament.%目的:探讨脑瘫儿童的气质特征,为脑瘫患儿的临床治疗和心理干预提供依据.方法:采用修订的carey儿童气质问卷中文电子软件版,对84例脑瘫儿童和168例正常儿童进行测试.结果:脑瘫组儿童与正常组儿童气质类型分布差异有统计学意义(P<0.05).脑瘫组中,麻烦型、中间偏烦型和发动缓慢型等气质类型比较较高.脑瘫组儿童在趋避性、适应性、心境和持久性等气质维度上得分与正常组儿童比较差异具有统计学意义(P<0.01).结论:脑瘫儿童的气质比正常儿童消极,脑瘫不利于儿童正常气质养成.

  3. Book Reviews

    Directory of Open Access Journals (Sweden)

    Harry A. Poeze

    1985-10-01

    Full Text Available - J. van Baal, B. van Norren, Socio-culturele structuur en innovatie: een structuur-vergelijkend onderzoek naar adoptie van family-planning in de periode 1969-1973 door Sundanese echtparen in twee rurale gemeenschappen op West-Java. Dissertatie Landbouwhogeschool Wageningen, 1985. 533 pp. - Pierre Brocheux, Andrew Turton, History and peasant consciousness in South East Asia, Senri Ethnological studies no. 13, National Museum of Ethnology, Osaka. 1984, 420 pp., Shigeharu Tanabe (eds. - I.H. Enklaar, J. Verkuyl, Gedenken en verwachten, mémoires, Kampen: J.H. Kok, 1983, 348 pp. - J. van Goor, D.J. Roorda, Overzicht van de Nieuwe Geschiedenis; De algemene geschiedenis van het einde der middeleeuwen tot 1870 (Groningen 1983; dez. Nieuwe Geschiedenis in teksten; Werkboek (Groningen 1984. - R. Hagesteijn, H.D. Kubitscheck, Südost Asien: Völker und Kulturen, Berlin: Akademie-Verlag, 1984. - C.H. van Nieuwenhuijsen-Riedeman, Florence Weiss, Kinder schildern ihren Alltag. Die stellung des kindes om ökonomischen System einer Dorfgemeinschaft in Papua New Guinea (Palimbei, Iatmul, Mittelsepik. [Children narrate their daily life. The child’s role in the economic system of a village community in Papua New Guinea (Palimbei, Iatmul, Middle Sepik ],Basler Beiträge zur Ethnologie band 21, Basel: Ethnologisches Seminar der Universität und Museum für Völkerkunde, 1981. - Harry A. Poeze, Joop Morriën, `Aroen’; Jan Stam, rebel in Indonesië en Nederland, Amsterdam: Pegasus, 1984, 159 pp. - P.H. Pott, Jeanne de Loos-Haaxman, De Franse Schilder Ernest Hardouin in Batavia, Leiden: Brill, 1982, 51 pp., ills. - Harry A. Poeze, Uit het archief van Arthur Lehning, Amsterdam: Van Gennep 1984. - W.G.J. Remmelink, P.B.R. Carey, Babad Dipanagara; An account of the outbreak of the Java War (1825-1830, The Malaysian branch of the Royal Asiatic Society - Monograph No. 9, Kuala Lumpur, 1981, LXXIII + 343 pp., 2 maps, 6 illustrations.

  4. Hybrid Pyroclastic Deposits Accumulated From The Eruptive Transitional Regime of Plinian Eruptions.

    Science.gov (United States)

    di Muro, Andrea; Rosi, Mauro

    In the past 15 years sedimentological studies (Valentine and Giannetti, 1995; Wilson and Hildreth, 1997; Rosi et al., 2001), physical models (Neri et al., 1988; Veitch and Woods, 2000; Kaminski and Jaupart, 2001) and laboratory experiments (Carey et al., 1988) converge at defining a new eruptive regime transitional between the fully convective and the fully collapsing end -members. Buoyant columns and density currents are contemporaneously fed in the transitional dynamic regime and fall beds are intercalated with the density current deposits in the area invested by them. The sedimentological analysis of the well exposed 800yr B.P. plinian eruption of the volcano Quilotoa (Ecuador) enabled us to i) recognize a gradual evolution of the eruptive regime, ii) characterize the fall and density current deposits emplaced during the transitional regime. The eruptive activity began with at least two phreatic explosions and the effusion of a small volume lava dome. Eruptive behaviour then switched to explosive and fed a purely convective column that accumulated a reverse graded pumice fall while rising up to an height of 30 km. A small volume, diluted and slow density current (S1 current) was emplaced in the proximal SW sector just before the column reached its maximum height. Two group s of more voluminous and faster intra-plinian density currents (S2 and S3 currents) were subsequently emplaced contemporaneously with the accumulation of the lower and upper part respectively of a normal graded pumice fall bed. S2 and S3 currents were radially distributed around the crater and deposited bedded layers with facies of decreasing energy when moving away from the crater. Massive beds of small volume were emplaced only i) inside the proximal valley channel near the topography break in slope, ii) outside the valley channel in medial area where the currents impinged against relieves. A thick sequence of pyroclastic flow deposits (S4 currents) accumulated in the valley channels around

  5. The fractionation of Fe and Cu between brine and CO2 at up to 130 °C and 8.4 MPa, with implications for metal mobilization in CO2 storage reservoirs

    Science.gov (United States)

    Rempel, Kirsten U.; Liebscher, Axel; Schettler, Georg; Heinrich, Wilhelm

    2010-05-01

    plume of injected CO2 could contain up to 0.2-2 ppm Fe and 0.001 ppm Cu. At a hypothetical injection site used to store 10 Mt of CO2, this would lead to the mobilization of 20 t of Fe and 0.01 t of Cu. Further, as the dissolution of Fe and Cu is chemically similar to that of other metals such as Pb and Zn, the relocation of significant quantities of additional metals may also be expected. The potential consequences of these results for long-term CO2 storage include the precipitation of metal carbonate minerals in shallower, more distal regions of the aquifer and the transferral of metals to adjacent aquifer systems. References Gunter, W.D., Wiwchar, B. and Perkins, E.H. (1997) Aquifer disposal of CO2-rich greenhouse gases: extension of the time scale of experiment for CO2-sequestering reactions by geochemical modelling. Miner. Petrol. 59, 121-140. Wigand, M., Carey, J.W., Schütt, H., Spangenberg, E. and Erzinger, J. (2008) Geochemical effects of CO2 sequestration in sandstones under simulated in situ conditions of deep saline aquifers. Appl. Geochem. 23, 2735-2745.

  6. Book Reviews

    Directory of Open Access Journals (Sweden)

    Redactie KITLV

    2008-12-01

    . Translated and annotated by Felicia Brichoux (Nicole Revel Joos van Vugt, José Eijt, Marjet Derks (eds; Tempo doeloe, tempo sekarang; Het proces van Indonesianisering in Nederlandse orden en congregaties (Karel Steenbrink Nancy Eberhardt; Imagining the course of life; Self-transformation in a Shan Buddhist community (Nicholas Tapp J.C. Smelik, C.M. Hogenstijn, W.J.M. Janssen; A.J. Duymaer van Twist; Gouverneur-Generaal van Nederlands-Indi? (1851-1856 (Gerard Termorshuizen David Steinberg; Turmoil in Burma; Contested legitimacies in Myanmar (Sean Turnell Carl A. Trocki; Singapore; Wealth, power and the culture of control (Bryan S. Turner Matthew Isaac Cohen; The Komedie Stamboel; Popular theatre in colonial Indonesia, 1891-1903 (Holger Warnk Jörgen Hellman; Ritual fasting on West Java (Robert Wessing Waruno Mahdi; Malay words and Malay things; Lexical souvenirs from an exotic archipelago in German publications before 1700 (Edwin Wieringa RECENT PUBLICATIONS Russell Jones, C.D. Grijns, J.W. de Vries, M. Siegers (eds; Loan-words in Indonesian and Malay VERHANDELINGEN 249 Peter Carey: The power of prophecy. Prince Dipanagara and the end of an old order in Java, 1785-1855

  7. Adrenalectomia laparoscópica: análise de 11 pacientes Laparoscopic adrenalectomy: analysis of 11 pacients

    Directory of Open Access Journals (Sweden)

    Ricardo Brianezi Tiraboschi

    2003-01-01

    Full Text Available OBJETIVO: Analisar a experiência inicial da Divisão de Urologia do HCFMRP-USP na adrenalectomia transperitoneal videolaparoscópica. MÉTODOS: Análise retrospectiva de 11 casos de adrenalectomia transperitoneal laparoscópica realizados de fevereiro de 1999 a março de 2003 sendo 3 em homens( 27% e 8 em mulheres (73%, idade média de 40,2 ± 13,1 anos. Os pacientes apresentavam os diagnósticos seguintes: adenoma - 5, síndrome de Cushing - 3, feocromocitoma - 1, hiperaldestorismo - 1 e síndrome de Carney - 1. RESULTADOS: A cirurgia foi bilateral em 05 pacientes (45,4% e unilateral em 06 pacientes (54,6 %, destes 04 à direita (36,4% e 02 à esquerda (18,2%. O tempo médio de internação foi de 3,6 ± 1,1 dias, o tempo médio de cirurgia foi de 220,5 ± 103,7 minutos e a taxa de conversão foi de 18,2%. CONCLUSÃO: Os resultados apresentados são similares aos relatados pela literatura, demonstrando que a adrenalectomia videolaparoscópia pode ser realizada de maneira segura e eficiente com benefícios: tempo cirúrgico aceitável, rápida recuperação pós-operatória e alta precoce.OBJECTIVE: To analyze the initial experience of the Division of Urology from HCFMRP-USP on the transperitoneal laparoscopic adrenalectomy. METHODS: We analyze retrospectively 11 cases of laparoscopic adrenalectomy carried out from February of 1,999 to March of 2,003. The sample included all patients operated on through this method in such period and was composed of 3 (27% men and 8 (73% women with a mean age of 40,2 ± 13,1 years. The patients had the following diagnosis: adenoma - 5, Cushing's syndrome - 3, feocromocytoma - 1, Conn's syndrome - 1 and Carey's syndrome - 1. RESULTS: The adrenalectomy was bilateral in 5 (45.4% patients and unilateral in 6 (54.6% being 4 (36.4% on the right side and 2 (18.2% on the left side. The mean hospital stay was 3,6 ± 1,1 days and the mean operating time was 220,5 ± 103,7 minutes. Conversion to open surgery was required

  8. ‘I can touch him now’: Harry Potter as a Gothic Narrative of Trauma and Homoerotic Sexual Abuse

    Directory of Open Access Journals (Sweden)

    Antonio Sanna

    2014-12-01

    Full Text Available In this article I argue that the Harry Potter novels constitute a Gothic narrative about homoerotic child abuse. The various confrontations between Harry and the Dark Lord are interpreted as representing the unavoidable encounter with what Ruth Bienstock Anolik has defined as ‘the sexual Other’ infiltrating the Self in Gothic texts. Specifically, I examine the re-enactment of trauma in the narrative as a typical trope of the Gothic. Harry’s progressive acquisition of knowledge on his adversary is therefore interpreted as a metaphor for the gradual re-assertion of repressed traumatic memories on consciousness.Keywords: Harry Potter, trauma, repression, Gothic, abuseThe critical readings on J. K. Rowling’s Harry Potter novels hitherto published have mainly focused on the commercially-successful and worldwide consumerist phenomenon of the series and have specifically considered it as belonging to the literary genre of children literature (Carey 159; Rangwala 140; Nafici 209; Nikolajeva 240. We could, however, also inscribe the series into the Gothic genre. This is due to the use of many figures (such as the monster, locations (such as the castle, and tropes (such as the depiction of the story’s villain as a sexual threat or the theme of the return of the past that are typical of the Gothic genre. The novels begin with the murders of Lily and James Potter and the attempt on the life of Harry (Hook 91 and are then permeated by the “themes of evil, darkness, destruction and murder” (Patrick and Patrick 221. As some critics have noted, there are “numerous and horrendous instances of violence” (Taub and Servaty-Seib 22 throughout the series and death is one of the dominant themes of the narrative, which “moves from wonder, innocence, and comedy to fear, experience, and tragedy” (Behr 263. Secondly, many of the scenes of the seven novels are set in environments which are typically Gothic, as the following examples illustrate: the

  9. Cornea procurement, preservation and transplantation

    International Nuclear Information System (INIS)

    Our experience on this subject is 40 years and we have seen the developments everywhere during this total period. Cornea procurement has been an unsurmountable problem in a large number of countries, mostly due to social and cultural reasons. The requirements for a simple eye bank to manage the supply for a local hospital are minimal. What is the most important is the donor base. In Sri Lanka nurtured in the traditions of Theravada Buddhism the donor base was easy to prepare. We had no difficulties with Christians and Hindus. For Muslims there are Fatwas in favour of donating eyes. But we always found them to be a reluctant group. But in predominantly Muslim countries, it is imperative that social workers should take up this issue, so those thousands may be helped. In all areas where attempts are made to procure comeas, it is important to have a day-and-night service available at short notice to collect any eyes offered. A trained technician with sterilised instruments to obtain eyes and blood sample must be available at a convenient location preferably in a large hospital. Even in places where the supply is infrequent, it is essential to have the readily-sterilised instruments to proceed to a donor site at short notice. To get eyes, general publicity in mass media alone is not sufficient. Such publicity makes people aware of the need for donor eyes and where a technician/doctor is available. What is more important is to canvass personally after a person has died For this purpose trained social workers may be employed, or the technician can do the motivation, as we do in Sri Lanka. Once eyes are removed, it is essential to pay careful attention to the appearance of the cadaver. It should not (and need not) cause any deformity as such event has a profound negative effect on the campaign. Many different preservation methods have been used over the years. Mc Carey-Kaufmann (MK) medium has been the standard for many years, and gives a life span of 4-5 days. The formula

  10. Temperament characteristics of congenital hypothyroidism after replacement Therapy%先天性甲状腺功能减低症患儿替代治疗后的气质特征

    Institute of Scientific and Technical Information of China (English)

    田春莉; 郭玉艳; 孙志刚; 赵志红; 马燕

    2010-01-01

    Objective To analyse the temperament characteristics of congenital hypothyroidism after replacement therapy and find the best ways to improve the quality of life. Methods From 2003 to 2006,there were 30 children aged (2.9±0.5) with congenital hypothyroidism diagnosed in the second people's hospital of Liaocheng and 45 normal children at that age,sex matched with congenital hypothyroidism patients who were tested by TTS in Carey temperament scale which was developed by Xinhua hospital affliated to the second medical university of Shanghai. Results There were significant differences between congenital hypothyroidism group and normal group(P<0.05). The scores of the congenital hypothyroidism group were higher than that of normal group in their activity level,rhythmicity,adaptability,persistence,distraction and threshold of reaction. Conclusions The temperament of congenital hypothyroidism children have peculiar characteristics, and they have a more negative temperament.%目的 分析先天性甲状腺功能减低症患儿甲状腺激素替代治疗后的气质特征,以寻求改善患儿生存及生活质量的最佳方案.方法 选取2003年6月至2006年12月本院确诊的先天性甲状腺功能减低症患儿30例,年龄(2.9±0.5)岁,选取年龄、性别相匹配正常儿童45名为对照组,采用上海第二医科大学附属新华医院开发的Carey系列气质量表中的TTS进行调查.结果 先天性甲状腺功能减低症患儿治疗后的气质类型分布趋向:中间偏难型(I-D型)占40.0%,容易抚养型(E型)占26.7%,抚养困难型(D型)占20.0%,中间偏易型(I-E型)占6.7%,发动缓慢型(S型)占6.7%,与正常儿童比较差异有统计学意义(χ2=12.89,P<0.05).先天性甲状腺功能低下症患儿替代治疗后活动水平的分值低于对照组,而节律性、适应性、持久性、注意分散、反应阈的分值高于对照组,经统计学处理差异有统计学意义(P<0.05).结论 先天性甲状腺功能减低症患

  11. Book Reviews

    Directory of Open Access Journals (Sweden)

    Arvind N. Das

    1988-01-01

    Full Text Available - Mart Bax, Henri J.M. Claessen, Development and decline; The evolution of sociopolitical organisation, Massachusetts: Bergin and Garvey Publishers, Inc., 369 pp., 1985., Peter van de Velde, M. Estellie Smith (eds. - H.J.M. Claessen, Shishir Kumar Panda, Herrschaft und verwaltung im östlichen Indien unter den Späten Gangas (ca. 1038-1434, Wiesbaden: Steiner, 1986. [Beiträge zur Südasienforschung, Südaisen-Institut Universität Heidelberg.] 184 pp., map, summary, bibl. - C.P. Epskamp, A. David Napier, Masks, transformation and paradox, Berkeley/London: University of California Press, 1986. 282 pp. - James J. Fox, P.E. de Josselin de Jong, Unity in diversity; Indonesia as a field of anthropological study, Dordrecht-Holland/Cinnaminson-U.S.A.: Foris Publications, 1984 [Verhandelingen van het Koninklijk Instituut voor Taal-, Land- en Volkenkunde 103.] - Peter Geschiere, J.P.M. van den Breemer, Onze aarde houdt niet van rijst; Een cultureel antropologische studie van innovatie in de landbouw bij de Aouan van Ivoorkust, proefschrift, Leiden 1984. - C.D. Grijns, Directory of West European Indonesianists 1987, compiled by the Documentation Centre for Modern Indonesia, KITLV, Dordrecht/Providence: Foris Publications, 1987. - C.D. Grijns, Peter Carey, Maritime South East Asian studies in the United Kingdom. A survey of their post-war development and current resources, Jaso Occasional Papers no. 6, Oxford: Jaso, 1986. - C.D. Grijns, Zicht op de Indonesische studies in Nederland. Een overzicht van onderwijs en onderzoek gericht op Indonesië, Rapport I, deel 1, Leiden: Landelijke Coördinatiecommissie Indonesische Studies, 1987. - Paul van der Grijp, Maurice Bloch, From Blessing to Violence; History and Ideology in the Circumcision Ritual of the Merina of Madagascar, Cambridge: Cambridge University Press, Cambridge Studies in Social Anthropology no. 61, 1986, 214 pp. - C.J.A. Jörg, Barbara Harrison, Pusaka; Heirloom Jars of Borneo, Singapore

  12. Book Reviews

    Directory of Open Access Journals (Sweden)

    Redactie KITLV

    2001-10-01

    Full Text Available -Doris Jedamski, René Witte, De Indische radio-omroep; Overheidsbeleid en ontwikkeling, 1923-1942. Hilversum: Verloren, 1998, 202 pp. -Edwin Jurriëns, Philip Kitley, Television, nation, and culture in Indonesia. Athens, Ohio: Ohio University Center for International Studies, 2000, xviii + 411 pp. [Research in International Studies, Southeast Asia Series 104.] -Gerrit Knaap, Scott Merrillees, Batavia in nineteenth century photographs. Richmond, Surrey: Curzon, 2000, 282 pp. -C.C. MacKnight, David Bulbeck ,Land of iron; The historical archaelogy of Luwu and the Cenrana valley; Results of the Origin of Complex Society in South Sulawesi Project (OXIS. Hull and Canberra: Centre for South-East Asian Studies, University of Hull / School of Archaeology and Anthropology, Australian National University, 2000, vi + 141 pp., Ian Caldwell (eds -Niels Mulder, Toh Goda, Political culture and ethnicity; An anthropological study in Southeast Asia. Quezon City: New Day, 1999, xviii + 182 pp. -Niels Mulder, Norman G. Owen, The Bikol blend; Bikolanos and their history. Quezon City: New Day, 1999, x + 291 pp. -Anton Ploeg, Donald Tuzin, Social complexity in the making; A case study among the Arapesh of New Guinea. London: Routledge, 2001, xii + 159 pp. -Henk Schulte-Nordholt, Maarten Kuitenbrouwer, Tussen oriëntalisme en wetenschap; Het Koninklijk Instituut voor Taal-, Land- en Volkenkunde in historisch verband 1851-2001. Leiden: KITLV Uitgeverij, 2001, ix + 362 pp. -Sri Margana, Peter Carey ,The archive of Yogyakarta, Volume II, Documents relating to economic and agrarian affairs. New York: Oxford University Press, 2000, 566 pp., Mason C. Hoadley (eds -Eric Venbrux, Wilfried van Damme, Bijdragen over kunst en cultuur in Oceanië/Studies in Oceanic Art and Culture. Gent: Academia Press, 2000, 122 pp. -Edwin Wieringa, Raharjo Suwandi, A quest for justice; The millenary aspirations of a contemporary Javanese wali. Leiden: KITLV Press, 2000, x + 229 pp

  13. Looking Back, Looking Forward in Stakeholder Engagement. 10-year Anniversary Colloquium of the FSC, 15 September, OECD Conference Centre, Paris

    International Nuclear Information System (INIS)

    in nuclear matters (J. Coadou); 13 - Main achievements on the Transparency of Nuclear Regulatory activities (K. de Beule); 14 - European Nuclear Safety Regulators Group (ENSREG); 15 - Celebrating 10 Years of Learning From Stakeholders and Each Other (J.P. Kotra); 16 - Looking back into the past: the first five years of FSC (Y. Le Bars); 17 - An archived site for alpha beta gamma 1994-2009 (C. Massart); 18 - FSC lessons: Are they specific to RWM? (F.G. Hermosilla); 19 - FSC on the Fence (FSC); 20 - Inclusive Governance of RWM, Is it here? How far does it reach? (G. Heriard Dubreuil); 21 - Local partnerships - vain experiment or a way to sustainable participation? (N. Zeleznik); 22 - Confidence: forms and foundations (O'Connor, M.); 23 - The FSC - A Host Country's Perspective - Canada 2002 (Natural Resources Canada); 24 - 'Surfing the FSC' (J. Lezaun); 25 - Looking Back, Looking Forward in Stakeholder Engagement. Forward-looking perspectives from the day's discussions and presentations (B. Kallenbach-Herbert); 26 - Seeking Transparency, FSC Discussion Comments (FSC); 27 - 'Secrets of radiation', Journalist training course at STUK (L. Hietanen); 28 - STUK's course for Journalists, A participant's experience and evaluation (K. Koivisto); 29 - The OECD Nuclear Energy Agency, the Media and the Civil society (S. Gas); 30 - The World's Nuclear Communication Network, 'Media Needs in an International Context' (M. Carey); 31 - Vision for the Reims conference, 14-17 December 2010 (NEA-RWMC); 32 - ICGR 2011 in Japan, 'National Commitment - Regional/Local Confidence' Reflecting 4. Planning Meeting (NUMO)

  14. A Case Report of Congenital Insensitivity to Pain and Anhidrosis (CIPA

    Directory of Open Access Journals (Sweden)

    Mehran KARIMI

    2012-09-01

    F, Soleymanpour J. Case report: two casereports of hereditary sensory autonomic neuropathy typeII in a family. Med J Tabriz Uni Med Sci 2009;31(1:91-4.Gharagozlou M, Zandieh F, Tabatabaei P, Zamani GH.Congenital sensory neuropathy as a differential diagnosis for phagocytic immunodeficiency. Iran J Allergy Asthma Immunol 2006 Mar;5(1:35- 7.Menkes JH. Heredo degenerative Diseases. In: Menkes JH, Sarnat HB, Maria BL. Child neurology. 7th ed.Philadelphia: Lippincott; 2006. p. 194-8.Schwarzkopf R, Pinsk V, Weisel Y, Atar D, Gorzak Y.Clinical and genetic aspects of congenital insensitivity topain with anhidrosis. Harefuah 2005 Jun;144(6:433-7,453, 452. [Article in Hebrew]Machtei A, Levy J, Friger M, Bodner L. Osteomyelitisof the mandible in a group of 33 pediatric patients with congenital insensitivity to pain with anhidrosis. Int J Pediatr Otorhinolaryngol 2011 Apr;75(4:523-6.Jarade EF, El-Sheikh HF, Tabbara KF. Indolent cornealulcers in a patient with congenital insensitivity to pain with anhidrosis: a case report and literature review. Eur J Ophthalmol 2002 Jan-Feb;12(1:60-5.John D, Thomas M, Jacob P Neurotrophic keratitisand congenital insensitivity to pain with anhidrosis-a case report with 10-year follow-up. Cornea 2011 Jan;30(1:100-2.Bonkowsky JL, Johnson J, Carey JC, Smith AG,Swoboda KJ. An infant with primary tooth loss andpalmar hyperkeratosis: a novel mutation in the NTRK1 gene causing congenital insensitivity to pain with anhidrosis. Pediatrics 2003 Sep;112(3 Pt 1:e237-41.Neves BG, Roza RT, Castro GF. Traumatic lesions from congenital insensitivity to pain with anhidrosis in a pediatric patient: dental management. Dent Traumatol 2009 Oct;25(5:545-9. 

  15. Chandra Captures Venus In A Whole New Light

    Science.gov (United States)

    2001-11-01

    conducted the research. The Chandra observation of Venus was also a technological tour de force. The angular separation of Venus from the Sun, as seen from Earth, never exceeds 48 degrees. This relative proximity has prevented star trackers and cameras on other X-ray astronomy satellites from locking onto guide stars and pointing steadily in the direction of Venus to perform such an observation. Venus was observed on Jan. 10, 2001, with the Advanced CCD Imaging Spectrometer (ACIS) detector plus the Low Energy Transmission Grating and on Jan. 13, 2001, with the ACIS alone. Other members of the team were Vadim Burwitz and Jakob Engelhauser, Max Planck Institute; Carey Lisse, University of Maryland, College Park; and Scott Wolk, Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass. These results were presented at this week's "New Visions of X-ray universe in the XMM-Newton and Chandra Era" symposium in Noordwijk, Netherlands. The Low Energy Transmission Grating was built by the Space Research Organization of the Netherlands and the Max Planck Institute, and the ACIS instrument was developed for NASA by The Pennsylvania State University, University Park, and the Massachusetts Institute of Technology (MIT), Cambridge. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program. The Smithsonian's Chandra X-ray Center controls science and flight operations from Cambridge, Mass.

  16. Geophysics Fatally Flawed by False Fundamental Philosophy

    Science.gov (United States)

    Myers, L. S.

    2004-05-01

    volcanoes, that enable planetary expansion the same way cranial sutures permit human skulls to grow to maturity. Expansion is shown by the Asian and Australian trenches, from Kamchatka to the Marianas, and from Samoa to the tip of Macquarie Ridge south of New Zealand, that are mirror images of the western coasts of North and South America. This is clear evidence neither the Atlantic nor the Pacific Ocean existed 250 Ma when Earth was much smaller. In just 250 Ma external accretion and internal core expansion increased Earth's diameter from 7640 km to 12,735 km and increased total surface area to 361,060,000 sq. km, the area occupied by today's oceans-oceans that did not exist 250 Ma when Earth was slightly larger than Mars is today \\(6787 km\\). The fallacy of the nebular hypothesis did not become apparent until after Oliver and Isacks introduced the concept of subduction in 1967. Subduction was based on the false assumption that Earth's diameter is constant and unchanging, and spawned the theory of Plate Tectonics that "revolutionized" geophysics in a short period of time-a "revolution" destined for failure. Evidence is presented showing all solar bodies originate as comets \\(fragments of supernovae explosions\\) captured by the Sun that become meteoroids or asteroids by external accretion of meteorites and dust from over 370 known meteor streams.\\(Terentjeva, 1964\\) Accreation replaces the nebular hypothesis and rejuvenates Carey's Earth Expansion theory that, unfortunately, was pushed aside by plate tectonics because it lacked a plausible mechanism. However, expansion carries an ultimate threat to Mankind's tenure on Earth and exploration of Mars as the future home of Mankind takes on added significance.

  17. Book Reviews

    Directory of Open Access Journals (Sweden)

    Redactie KITLV

    2001-07-01

    Full Text Available -Stanley L. Engerman, Heather Cateau ,Capitalism and slavery fifty years later: Eric Eustace Williams - A reassessment of the man and his work. New York: Peter Lang, 2000. xvii + 247 pp., S.H.H. Carrington (eds -Philip D. Morgan, B.W. Higman, Writing West Indian histories. London: Macmillan Caribbean, 1999. xiv + 289 pp. -Daniel Vickers, Alison Games, Migration and the origins of the English Atlantic world. Cambridge MA: Harvard University Press, 1999. xiii + 322 pp. -Christopher L. Brown, Andrew Jackson O'Shaughnessy, An empire divided: The American revolution and the British Caribbean. Philadelphia: University of Pennsylvania Press, 2000. xviii + 357 pp. -Lennox Honychurch, Samuel M. Wilson, The indigenous people of the Caribbean. Gainesville: University Press of Florida, 1997. xiv + 253 pp. -Kenneth Bilby, Bev Carey, The Maroon story: The authentic and original history of the Maroons in the history of Jamaica 1490-1880. St. Andrew, Jamaica: Agouti Press, 1997. xvi + 656 pp. -Bernard Moitt, Doris Y. Kadish, Slavery in the Caribbean Francophone world: Distant voices, forgotten acts, forged identities. Athens: University of Georgia Press, 2000. xxiii + 247 pp. -Michael J. Guasco, Virginia Bernhard, Slaves and slaveholders in Bermuda, 1616-1782. Columbia: University of Missouri Press, 1999. xviii + 316 pp. -Michael J. Jarvis, Roger C. Smith, The maritime heritage of the Cayman Islands. Gainesville: University Press of Florida, 2000. xxii + 230 pp. -Paul E. Hoffman, Peter R. Galvin, Patterns of pillage: A geography of Caribbean-based piracy in Spanish America, 1536-1718. New York: Peter Lang, 1999. xiv + 271 pp. -David M. Stark, Raúl Mayo Santana ,Cadenas de esclavitud...y de solidaridad: Esclavos y libertos en San Juan,siglo XIX. Río Piedras: Centro de Investigaciones Sociales, Universidad de Puerto Rico, 1997. 204 pp., Mariano Negrón Portillo, Manuel Mayo López (eds -Ada Ferrer, Philip A. Howard, Changing history: Afro-Cuban Cabildos and

  18. Book Reviews

    Directory of Open Access Journals (Sweden)

    Janet Rodenburg

    1992-04-01

    -Guinée. (avant-propos par Maurice Godelier. Paris: Éditions de la Maison des Sciences de l’Homme, 1990, 189 pp. - F.G.P. Jaquet, Hans van Miert, Bevlogenheid en onvermogen; Mr. J.H. Abendanon en de Ethische Richting in het Nederlandse kolonialisme. Leiden: KITLV Uitgeverij, 1991. VI 178 pp. - Jan A. B. Jongeneel, Leendert Jan Joosse, ‘Scoone dingen sijn swaere dingen’; een onderzoek naar de motieven en activiteiten in de Nederlanden tot verbreiding van de gereformeerde religie gedurende de eerste helft van de zeventiende eeuw. Leiden: J.J. Groen en Zoon, 1992, 671 pp., - Barbara Luem, Robert W. Hefner, The political economy of Mountain Java; An interpretive history. Berkeley: University of California Press, 1990. - W. Manuhutu, Dieter Bartels, Moluccans in exile; A struggle for ethnic survival; Socialization, identity formation and emancipation among an East-Indonesian minority in The Netherlands. Leiden: Centre for the study of social conflicts and Moluccan advisory council, 1989, xiii 544 p. - J. Noorduyn, Taro Goh, Sumba bibliography, with a foreword by James J. Fox, Canberra: The Australian National University, 1991. (Occasional paper, Department of Anthropology, Research school of Pacific studies. xi 96 pp., map, - J.G. Oosten, Veronika Gorog-Karady, D’un conte a l’autre; La variabilité dans la litterature orale/From one tale to the other; Variability in oral literature. Paris: Centre National de la Recherche Scientifique, 1990 - Gert Oostindie, J.H. Galloway, The sugar cane industry: An historical geography from its origins to 1914. Cambridge (etc.: Cambridge University Press, 1989. xiii 266 pp. - J.J. Ras, Peter Carey, The British in Java, 1811-1816; A Javanese account. Oriental documents X, published for the British academy by Oxford University Press, 1992, xxii 611 pp., ills., maps. Oxford: Alden press. - Ger P. Reesink, Karl G. Heider, Landscapes of emotion; Mapping three cultures of emotion in Indonesia. Cambridge: Cambridge University Press, Paris

  19. Book Reviews

    Directory of Open Access Journals (Sweden)

    Peter Metcalf

    1990-10-01

    age in motion; Popular radicalism in Java, 1912-1926, Ithaca/London: Cornell University Press, 1990. xxiv + 365 pp. - Rob de Ridder, Willem F.H. Adelaar, Het boek van Huarochirí. Mythen en riten van het Oude Peru, Amsterdam: Meulenhoff, 1988, 150 pp., - Marie-Odette Scalliet, Peter Carey, A.A.J. Payen: Journal de mon voyage à Jogja Karta en 1825. The outbreak of the Java War (1825-30 as seen by a painter, Cahier d’Archipel 17, Paris 1988. XIV + 183 pp., 17 ill., 3 maps. - Matthew Schoffeleers, Marion Melk-Koch, Auf der Suche nach der menschlichen Gesellschaft: Richard Thurnwald, Berlin: Dietrich Reimer, 1989. 352 pp., maps, photographs and Thurnwald bibliography. - Matthew Schoffeleers, Peter Metcalf, Where are you / Spirits? Style and theme in Berawan prayer, Washington and London: Smithsonian Institution Press, 1989, 345 pp. - J.W. Schoorl, J.F.L.M. Cornelissen, Pater en Papoea; Ontmoeting van de Missionarissen van het Heileg Hart met de cultuur der Papoea’s van Nederlands Zuid-Nieuw-Guinea (1905-1963, Kampen: Kok, 1988, XIV + 256 pp. - Alex van Stipriaan, Jo Derkx, Suriname; A bibliography, 1980-1989, Leiden: KITLV (Royal Institute of Linguistics and Anthropology, Department of Caribbean studies, 1990, 297 pp., Irene Rolfes (eds. - A.A. Trouwborst, Th. Schweizer (Hg, Netzwerkanalyse; Ethnologische perspektiven, Berlin: Dietrich Reimerverlag, 1989, VIII, 229 pp. - Hans Vermeulen, Brian Juan O’Neill, Social inequality in a Portugese hamlet; Land, late marriage and bastardy, 1870-1978, Cambridge: Cambridge University Press. 431 pp. 1987. - C.W. Watson, Hendrick M.J. Maier, In the center of authority. The Malay Hikayat Merong Mahawangsa, Ithaca: Southeast Asia program, Studies on Southeast Asia , 1988. 210 pp. - Neil Lancelot Whitehead, Edmundo Magaña, Orión y la mujer Pléyades. Simbolismo astronómico de los indios kaliña de Surinam, Dordrecht/Providence: Foris, 1988. [CEDLA Latin American studies series 44.] 373 pp. - J.J. de Wolf, Meyer Fortes, Religion

  20. Geochemical changes and microbial activities during CO2 storage - Long-term experiments under in situ conditions within the frame of CO2SINK

    Science.gov (United States)

    Wandrey, Maren; Scherf, Ann-Kathrin; Vieth, Andrea; Zettlitzer, Michael; Würdemann, Hilke

    2010-05-01

    (2009) Energy Procedia 1, 2029-2035 Wandrey M., Morozova D., Zettlitzer M., Würdemann H., CO2SINK Group (2010) Int J Greenhouse Gas Control, accepted Welch S.A. and McPhail D.C. (2003) Advances in Regolith, pp. 437 Wigand M., Carey J.W., Schütt H., Spangenberg E., Erzinger J. (2008) Appl Geochem 23(9), pp. 2735 Zemke K., Wandrey M., CO2SINK Group (2010) Int J Greenhouse Gas Control, accepted

  1. Selection and design of high affinity DNA ligands for mutant single-chain derivatives of the bacteriophage 434 repressor

    Institute of Scientific and Technical Information of China (English)

    LIANG; Tiebing

    2001-01-01

    receptors, Cytokine, 1994, 6: 206-214.[23]Sanger, F., Nicklen, S., Coulson, A. R., DNA sequencing with chain terminating inhibitors, Proc. Natl. Acad. Sci. USA, 1977, 74: 5463-5467.[24]Carey, J., Gel retardation, Methods Enzymol., 1991, 208: 103-117.[25]Mandel-Gutfreund, Y., Schueler, O., Margalit, H., Comprehensive analysis of hydrogen bonds in regulatory protein DNA-complexes: in search of common principles, J. Mol. Biol., 1995, 253: 370-382.